Error while opening WAL store error: sync zw: invalid argument While syncing directory: zw when using WSL and Docker for Windows

[F21]

If you suspect this could be a bug, follow the template.

• What version of Dgraph are you using?
  Dgraph version : v1.0.9
  Commit SHA-1 : 22c13fc
  Commit timestamp : 2018-10-02 16:45:53 -0700
  Branch : HEAD

• Have you tried reproducing the issue with latest release?
  No

• What is the hardware spec (RAM, OS)?
  12GB RAM, Windows 10 1809 64-bit
  Docker for Windows Edge Beta (Version 2.0.0.0-beta1-win75 (19925) Channel: edge 915f68b)
  Windows Subsystem for Linux (latest Windows 10 1809)
  Ubuntu 18.04 running in WSL with latest updates

• Steps to reproduce the issue (command/config used to run Dgraph).

1. Install and setup Docker for Windows
2. Set your C drive on Windows to be shared with Docker for Windows
3. Make sure your C drive is mounted at /c/ and not /mnt/c in WSL:

sudo nano /etc/wsl.conf

# Now make it look like this and save the file when you're done:
[automount]
root = /
options = "metadata"

3. Create the directory /c/dgraph in WSL.
4. Create the dgraph container:

docker run -it -d -p 5080:5080 -p 6080:6080 -p 8080:8080 -p 9080:9080 -p 8000:8000 -v /c/dgraph:/dgraph --name dgraph dgraph/dgraph dgraph zero

4. Dgraph fails to launch:

Dgraph version   : v1.0.9
Commit SHA-1     : 22c13fce
Commit timestamp : 2018-10-02 16:45:53 -0700
Branch           : HEAD

For Dgraph official documentation, visit https://docs.dgraph.io.
For discussions about Dgraph     , visit https://discuss.dgraph.io.
To say hi to the community       , visit https://dgraph.slack.com.

Licensed under Apache 2.0 + Commons Clause. Copyright 2015-2018 Dgraph Labs, Inc.


Setting up grpc listener at: 0.0.0.0:5080
Setting up http listener at: 0.0.0.0:6080
2018/10/29 04:17:47 Error while opening WAL store error: sync zw: invalid argument
While syncing directory: zw.
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.syncDir
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/db.go:461
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.helpRewrite
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/manifest.go:275
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.helpOpenOrCreateManifestFile
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/manifest.go:134
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.openOrCreateManifestFile
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/manifest.go:116
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.Open
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/db.go:234
github.com/dgraph-io/dgraph/dgraph/cmd/zero.run
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/cmd/zero/run.go:181
github.com/dgraph-io/dgraph/dgraph/cmd/zero.init.0.func1
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/cmd/zero/run.go:59
github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra.(*Command).execute
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra/command.go:702
github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra.(*Command).ExecuteC
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra/command.go:783
github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra.(*Command).Execute
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra/command.go:736
github.com/dgraph-io/dgraph/dgraph/cmd.Execute
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/cmd/root.go:47
main.main
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/main.go:24
runtime.main
        /usr/local/go/src/runtime/proc.go:201
runtime.goexit
        /usr/local/go/src/runtime/asm_amd64.s:1333

• Expected behaviour and actual result.
  Dgraph should launch correctly.

[manishrjain]

It sounds like Dgraph might be missing write access to the zw directory.

[F21]

Doesn't seem to be a problem with Docker for Windows or WSL. I just tested with a plain alpine container and everything works:

$ docker run -it -v /d/dgraph:/dgraph alpine sh
Unable to find image 'alpine:latest' locally
latest: Pulling from library/alpine
4fe2ade4980c: Pull complete
Digest: sha256:621c2f39f8133acb8e64023a94dbdf0d5ca81896102b9e57c0dc184cadaf5528
Status: Downloaded newer image for alpine:latest
/ # cd /dgraph
/dgraph # ls
/dgraph # touch test
/dgraph # ls
test

I can also confirm that D:/dgraph/test exists when viewed through the Windows file explorer.

[manishrjain]

Can you run strace and track the sync of zw directory when starting Dgraph?

[F21]

Here's the result of running strace:

$ docker run -it --privileged -p 5080:5080 -p 6080:6080 -p 8080:8080 -p 9080:9080 -p 8000:8000 -v /d/dgraph:/dgraph --name dgraph dgraph/dgraph sh
# apt update
Get:1 http://archive.ubuntu.com/ubuntu bionic InRelease [242 kB]
Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]
Get:3 http://security.ubuntu.com/ubuntu bionic-security/universe Sources [24.9 kB]
Get:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:5 http://security.ubuntu.com/ubuntu bionic-security/multiverse amd64 Packages [1364 B]
Get:6 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages [237 kB]
Get:7 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 Packages [112 kB]
Get:8 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Get:9 http://archive.ubuntu.com/ubuntu bionic/universe Sources [11.5 MB]
Get:10 http://archive.ubuntu.com/ubuntu bionic/restricted amd64 Packages [13.5 kB]
Get:11 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages [11.3 MB]
Get:12 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages [1344 kB]
Get:13 http://archive.ubuntu.com/ubuntu bionic/multiverse amd64 Packages [186 kB]
Get:14 http://archive.ubuntu.com/ubuntu bionic-updates/universe Sources [122 kB]
Get:15 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 Packages [6161 B]
Get:16 http://archive.ubuntu.com/ubuntu bionic-updates/restricted amd64 Packages [10.8 kB]
Get:17 http://archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [725 kB]
Get:18 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [537 kB]
Get:19 http://archive.ubuntu.com/ubuntu bionic-backports/universe amd64 Packages [2975 B]
Fetched 26.7 MB in 48s (561 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
16 packages can be upgraded. Run 'apt list --upgradable' to see them.
# apt install strace
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  libunwind8
The following NEW packages will be installed:
  libunwind8 strace
0 upgraded, 2 newly installed, 0 to remove and 16 not upgraded.
Need to get 381 kB of archives.
After this operation, 1618 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://archive.ubuntu.com/ubuntu bionic/main amd64 libunwind8 amd64 1.2.1-8 [47.5 kB]
Get:2 http://archive.ubuntu.com/ubuntu bionic/main amd64 strace amd64 4.21-1ubuntu1 [333 kB]
Fetched 381 kB in 4s (94.5 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package libunwind8:amd64.
(Reading database ... 4535 files and directories currently installed.)
Preparing to unpack .../libunwind8_1.2.1-8_amd64.deb ...
Unpacking libunwind8:amd64 (1.2.1-8) ...
Selecting previously unselected package strace.
Preparing to unpack .../strace_4.21-1ubuntu1_amd64.deb ...
Unpacking strace (4.21-1ubuntu1) ...
Setting up libunwind8:amd64 (1.2.1-8) ...
Processing triggers for libc-bin (2.27-3ubuntu1) ...
Setting up strace (4.21-1ubuntu1) ...
# strace -o trace_out dgraph zero

Dgraph version   : v1.0.9
Commit SHA-1     : 22c13fce
Commit timestamp : 2018-10-02 16:45:53 -0700
Branch           : HEAD

For Dgraph official documentation, visit https://docs.dgraph.io.
For discussions about Dgraph     , visit https://discuss.dgraph.io.
To say hi to the community       , visit https://dgraph.slack.com.

Licensed under Apache 2.0 + Commons Clause. Copyright 2015-2018 Dgraph Labs, Inc.


Setting up grpc listener at: 0.0.0.0:5080
Setting up http listener at: 0.0.0.0:6080
2018/10/29 22:11:33 Error while opening WAL store error: sync zw: invalid argument
While syncing directory: zw.
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.syncDir
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/db.go:461
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.helpRewrite
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/manifest.go:275
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.helpOpenOrCreateManifestFile
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/manifest.go:134
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.openOrCreateManifestFile
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/manifest.go:116
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.Open
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/db.go:234
github.com/dgraph-io/dgraph/dgraph/cmd/zero.run
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/cmd/zero/run.go:181
github.com/dgraph-io/dgraph/dgraph/cmd/zero.init.0.func1
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/cmd/zero/run.go:59
github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra.(*Command).execute
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra/command.go:702
github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra.(*Command).ExecuteC
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra/command.go:783
github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra.(*Command).Execute
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra/command.go:736
github.com/dgraph-io/dgraph/dgraph/cmd.Execute
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/cmd/root.go:47
main.main
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/main.go:24
runtime.main
        /usr/local/go/src/runtime/proc.go:201
runtime.goexit
        /usr/local/go/src/runtime/asm_amd64.s:1333
# cat trace_out
execve("/usr/local/bin/dgraph", ["dgraph", "zero"], 0x7ffc2fe995b8 /* 5 vars */) = 0
brk(NULL)                               = 0x2346000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=10084, ...}) = 0
mmap(NULL, 10084, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f51d8614000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\16\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=14560, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d8612000
mmap(NULL, 2109712, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f51d81ec000
mprotect(0x7f51d81ef000, 2093056, PROT_NONE) = 0
mmap(0x7f51d83ee000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f51d83ee000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000b\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=144976, ...}) = 0
mmap(NULL, 2221184, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f51d7fcd000
mprotect(0x7f51d7fe7000, 2093056, PROT_NONE) = 0
mmap(0x7f51d81e6000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19000) = 0x7f51d81e6000
mmap(0x7f51d81e8000, 13440, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f51d81e8000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260\34\2\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=2030544, ...}) = 0
mmap(NULL, 4131552, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f51d7bdc000
mprotect(0x7f51d7dc3000, 2097152, PROT_NONE) = 0
mmap(0x7f51d7fc3000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e7000) = 0x7f51d7fc3000
mmap(0x7f51d7fc9000, 15072, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f51d7fc9000
close(3)                                = 0
mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d860f000
arch_prctl(ARCH_SET_FS, 0x7f51d860f740) = 0
mprotect(0x7f51d7fc3000, 16384, PROT_READ) = 0
mprotect(0x7f51d81e6000, 4096, PROT_READ) = 0
mprotect(0x7f51d83ee000, 4096, PROT_READ) = 0
mprotect(0x1cd1000, 118784, PROT_READ)  = 0
mprotect(0x7f51d8617000, 4096, PROT_READ) = 0
munmap(0x7f51d8614000, 10084)           = 0
set_tid_address(0x7f51d860fa10)         = 247
set_robust_list(0x7f51d860fa20, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f51d7fd2cb0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f51d7fd2d50, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
brk(NULL)                               = 0x2346000
brk(0x2367000)                          = 0x2367000
sched_getaffinity(0, 8192, [0, 1, 2, 3]) = 16
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d85cf000
mmap(0xc000000000, 67108864, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xc000000000
mmap(0xc000000000, 67108864, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xc000000000
mmap(NULL, 33554432, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d5bdc000
mmap(NULL, 2162688, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d59cc000
mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d85bf000
clock_gettime(CLOCK_MONOTONIC, {tv_sec=684, tv_nsec=700841200}) = 0
mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d85af000
clock_gettime(CLOCK_MONOTONIC, {tv_sec=684, tv_nsec=724281700}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=684, tv_nsec=724520400}) = 0
rt_sigprocmask(SIG_SETMASK, NULL, [], 8) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=684, tv_nsec=779165300}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=684, tv_nsec=779475700}) = 0
sigaltstack(NULL, {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
sigaltstack({ss_sp=0xc000002000, ss_flags=0, ss_size=32768}, NULL) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
gettid()                                = 247
rt_sigaction(SIGHUP, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGHUP, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGINT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGQUIT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGILL, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGILL, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGTRAP, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTRAP, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGABRT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGABRT, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGBUS, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGFPE, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGFPE, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGUSR1, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGUSR1, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGSEGV, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGUSR2, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGUSR2, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGPIPE, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPIPE, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGALRM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGALRM, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGTERM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTERM, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGSTKFLT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSTKFLT, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGCHLD, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGCHLD, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGURG, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGURG, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGXCPU, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGXCPU, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGXFSZ, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGXFSZ, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGVTALRM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGVTALRM, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGPROF, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPROF, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGWINCH, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGWINCH, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGIO, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGIO, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGPWR, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPWR, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGSYS, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSYS, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRTMIN, NULL, {sa_handler=0x7f51d7fd2cb0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, 8) = 0
rt_sigaction(SIGRTMIN, NULL, {sa_handler=0x7f51d7fd2cb0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, 8) = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f51d7fd2cb0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_1, NULL, {sa_handler=0x7f51d7fd2d50, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, 8) = 0
rt_sigaction(SIGRT_1, NULL, {sa_handler=0x7f51d7fd2d50, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f51d7fd2d50, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_2, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_2, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_3, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_3, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_4, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_4, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_5, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_5, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_6, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_6, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_7, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_7, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_8, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_8, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_9, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_9, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_10, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_10, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_11, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_11, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_12, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_12, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_13, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_13, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_14, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_14, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_15, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_15, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_16, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_16, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_17, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_17, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_18, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_18, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_19, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_19, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_20, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_20, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_21, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_21, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_22, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_22, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_23, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_23, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_24, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_24, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_25, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_25, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_26, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_26, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_27, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_27, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_28, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_28, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_29, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_29, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_30, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_30, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_31, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_31, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigaction(SIGRT_32, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_32, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f51d7fdf890}, NULL, 8) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f51d51cb000
mprotect(0x7f51d51cc000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f51d59cafb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f51d59cb9d0, tls=0x7f51d59cb700, child_tidptr=0x7f51d59cb9d0) = 248
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f51d49ca000
mprotect(0x7f51d49cb000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f51d51c9fb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f51d51ca9d0, tls=0x7f51d51ca700, child_tidptr=0x7f51d51ca9d0) = 249
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=684, tv_nsec=810614100}) = 0
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_MONOTONIC, {tv_sec=684, tv_nsec=811271700}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=684, tv_nsec=811606500}) = 0
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000082058, FUTEX_WAKE_PRIVATE, 1) = 1
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f51c77ff000
mprotect(0x7f51c7800000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f51c7ffefb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f51c7fff9d0, tls=0x7f51c7fff700, child_tidptr=0x7f51c7fff9d0) = 251
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d856f000
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
readlinkat(AT_FDCWD, "/proc/self/exe", "/usr/local/bin/dgraph", 128) = 21
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
fcntl(0, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
fcntl(1, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
fcntl(2, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
openat(AT_FDCWD, "/proc/sys/net/core/somaxconn", O_RDONLY|O_CLOEXEC) = 3
epoll_create1(EPOLL_CLOEXEC)            = 4
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=3629596416, u64=139989498674944}}) = 0
fcntl(3, F_GETFL)                       = 0x8000 (flags O_RDONLY|O_LARGEFILE)
fcntl(3, F_SETFL, O_RDONLY|O_NONBLOCK|O_LARGEFILE) = 0
read(3, "128\n", 65536)                 = 4
read(3, "", 65532)                      = 0
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000058b3c) = 0
close(3)                                = 0
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_REALTIME, {tv_sec=1540851092, tv_nsec=946931700}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=16958400}) = 0
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
getpid()                                = 247
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
uname({sysname="Linux", nodename="e08ee42de3d7", ...}) = 0
getuid()                                = 0
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
connect(3, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(3)                                = 0
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
connect(3, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(3)                                = 0
openat(AT_FDCWD, "/etc/nsswitch.conf", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=497, ...}) = 0
read(3, "# /etc/nsswitch.conf\n#\n# Example"..., 4096) = 497
read(3, "", 4096)                       = 0
close(3)                                = 0
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=10084, ...}) = 0
mmap(NULL, 10084, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f51d8614000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libnss_compat.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\22\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=39744, ...}) = 0
mmap(NULL, 2136256, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f51c75f5000
mprotect(0x7f51c75fd000, 2097152, PROT_NONE) = 0
mmap(0x7f51c77fd000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7f51c77fd000
close(3)                                = 0
mprotect(0x7f51c77fd000, 4096, PROT_READ) = 0
munmap(0x7f51d8614000, 10084)           = 0
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=10084, ...}) = 0
mmap(NULL, 10084, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f51d8614000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libnss_nis.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p \0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=47576, ...}) = 0
mmap(NULL, 2143624, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f51c73e9000
mprotect(0x7f51c73f4000, 2093056, PROT_NONE) = 0
mmap(0x7f51c75f3000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7f51c75f3000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libnsl.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220@\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=97176, ...}) = 0
mmap(NULL, 2202200, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f51c71cf000
mprotect(0x7f51c71e6000, 2093056, PROT_NONE) = 0
mmap(0x7f51c73e5000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7f51c73e5000
mmap(0x7f51c73e7000, 6744, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f51c73e7000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libnss_files.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P#\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=47568, ...}) = 0
mmap(NULL, 2168632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f51c6fbd000
mprotect(0x7f51c6fc8000, 2093056, PROT_NONE) = 0
mmap(0x7f51c71c7000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7f51c71c7000
mmap(0x7f51c71c9000, 22328, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f51c71c9000
close(3)                                = 0
mprotect(0x7f51c71c7000, 4096, PROT_READ) = 0
mprotect(0x7f51c73e5000, 4096, PROT_READ) = 0
mprotect(0x7f51c75f3000, 4096, PROT_READ) = 0
munmap(0x7f51d8614000, 10084)           = 0
openat(AT_FDCWD, "/etc/passwd", O_RDONLY|O_CLOEXEC) = 3
lseek(3, 0, SEEK_CUR)                   = 0
fstat(3, {st_mode=S_IFREG|0644, st_size=926, ...}) = 0
mmap(NULL, 926, PROT_READ, MAP_SHARED, 3, 0) = 0x7f51d8616000
lseek(3, 926, SEEK_SET)                 = 926
munmap(0x7f51d8616000, 926)             = 0
close(3)                                = 0
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
mmap(NULL, 1439992, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d4069000
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
getpid()                                = 247
newfstatat(AT_FDCWD, "/proc", {st_mode=S_IFDIR|0555, st_size=0, ...}, 0) = 0
openat(AT_FDCWD, "/proc/stat", O_RDONLY|O_CLOEXEC) = 3
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=3629596416, u64=139989498674944}}) = 0
fcntl(3, F_GETFL)                       = 0x8000 (flags O_RDONLY|O_LARGEFILE)
fcntl(3, F_SETFL, O_RDONLY|O_NONBLOCK|O_LARGEFILE) = 0
read(3, "cpu  2188 0 2344 257617 10511 0 "..., 4096) = 3240
read(3, "", 4096)                       = 0
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0000eb2c4) = 0
close(3)                                = 0
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f51c5fbb000
mprotect(0x7f51c5fbc000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f51c67bafb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f51c67bb9d0, tls=0x7f51c67bb700, child_tidptr=0x7f51c67bb9d0) = 253
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004ebc0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004ebc0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004ebc0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004ebc0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004ebc0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f51c4fb9000
mprotect(0x7f51c4fba000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7f51c57b8fb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f51c57b99d0, tls=0x7f51c57b9700, child_tidptr=0x7f51c57b99d0) = 255
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_REALTIME, {tv_sec=1540851093, tv_nsec=68410300}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=138428100}) = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d852f000
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_REALTIME, {tv_sec=1540851093, tv_nsec=76631200}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=146724300}) = 0
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
clock_gettime(CLOCK_REALTIME, {tv_sec=1540851093, tv_nsec=77588900}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=147611800}) = 0
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_REALTIME, {tv_sec=1540851093, tv_nsec=140990200}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=211076400}) = 0
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f51d84ef000
clock_gettime(CLOCK_REALTIME, {tv_sec=1540851093, tv_nsec=198065500}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=268090900}) = 0
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
clock_gettime(CLOCK_REALTIME, {tv_sec=1540851093, tv_nsec=228495600}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=298519800}) = 0
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_REALTIME, {tv_sec=1540851093, tv_nsec=243658500}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=313748000}) = 0
epoll_pwait(4, [], 128, 0, NULL, 0)     = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=314251600}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=316148600}) = 0
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0004ca4c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
nanosleep({tv_sec=0, tv_nsec=3000}, NULL) = 0
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
nanosleep({tv_sec=0, tv_nsec=3000}, NULL) = 0
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0004ca4c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0004ca4c0, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=373957100}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=685, tv_nsec=374420900}) = 0
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1d7d6e8, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
sched_yield()                           = 0
futex(0x1d7d6c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
+++ exited with 1 +++
#

[srfrog]

I think you need to pass the whole path to zw, /mnt/c/dgraph/zw for example, so that the syscall translation works. I suspect that windows is not catching it. I'd be interested to know if you get it to work.

[F21]

I have the following in my /etc/wsl.conf, so that my Windows drives are mounted directly at / and not under /mnt/:

[automount]
root = /
options = "metadata"

[srfrog]

Can you try using /mnt/? And if that works, you can use a link back to /.

[F21]

Still seeing the same problem when I mount my Windows drives in /mnt. I don't think this problem is linked to WSL, rather it seems to be a problem when using Docker for Windows.

Note: when we execute the docker commands, volumes are always mounted in the form /d/something, this is a quirk of docker and does not have any relation to the automount settings in WSL. The automount settings are changed to / to make working with docker from WSL easier.

I also tried the same thing using cmder with cmd.exe as my shell:

λ docker run -it --privileged -p 5080:5080 -p 6080:6080 -p 8080:8080 -p 9080:9080 -p 8000:8000 -v /d/dgraph:/dgraph --name dgraph dgraph/dgraph sh
# apt update
Get:1 http://archive.ubuntu.com/ubuntu bionic InRelease [242 kB]
Get:2 http://security.ubuntu.com/ubuntu bionic-security InRelease [83.2 kB]
Get:3 http://security.ubuntu.com/ubuntu bionic-security/universe Sources [24.9 kB]
Get:4 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 Packages [112 kB]
Get:5 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:6 http://security.ubuntu.com/ubuntu bionic-security/multiverse amd64 Packages [1364 B]
Get:7 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages [237 kB]
Get:8 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Get:9 http://archive.ubuntu.com/ubuntu bionic/universe Sources [11.5 MB]
Get:10 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages [1344 kB]
Get:11 http://archive.ubuntu.com/ubuntu bionic/multiverse amd64 Packages [186 kB]
Get:12 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages [11.3 MB]
Get:13 http://archive.ubuntu.com/ubuntu bionic/restricted amd64 Packages [13.5 kB]
Get:14 http://archive.ubuntu.com/ubuntu bionic-updates/universe Sources [122 kB]
Get:15 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [539 kB]
Get:16 http://archive.ubuntu.com/ubuntu bionic-updates/restricted amd64 Packages [10.8 kB]
Get:17 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 Packages [6161 B]
Get:18 http://archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [725 kB]
Get:19 http://archive.ubuntu.com/ubuntu bionic-backports/universe amd64 Packages [2975 B]
Fetched 26.7 MB in 2min 24s (185 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
16 packages can be upgraded. Run 'apt list --upgradable' to see them.
# apt install strace
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  libunwind8
The following NEW packages will be installed:
  libunwind8 strace
0 upgraded, 2 newly installed, 0 to remove and 16 not upgraded.
Need to get 381 kB of archives.
After this operation, 1618 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://archive.ubuntu.com/ubuntu bionic/main amd64 libunwind8 amd64 1.2.1-8 [47.5 kB]
Get:2 http://archive.ubuntu.com/ubuntu bionic/main amd64 strace amd64 4.21-1ubuntu1 [333 kB]
Fetched 381 kB in 4s (103 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package libunwind8:amd64.
(Reading database ... 4535 files and directories currently installed.)
Preparing to unpack .../libunwind8_1.2.1-8_amd64.deb ...
Unpacking libunwind8:amd64 (1.2.1-8) ..........................................................................]
Selecting previously unselected package strace.................................................................]
Preparing to unpack .../strace_4.21-1ubuntu1_amd64.deb ...
Unpacking strace (4.21-1ubuntu1) ...###############............................................................]
Setting up libunwind8:amd64 (1.2.1-8) ...###########################...........................................]
Processing triggers for libc-bin (2.27-3ubuntu1) ...#################################..........................]
Setting up strace (4.21-1ubuntu1) ...
# strace -o trace_out dgraph zero

Dgraph version   : v1.0.9
Commit SHA-1     : 22c13fce
Commit timestamp : 2018-10-02 16:45:53 -0700
Branch           : HEAD

For Dgraph official documentation, visit https://docs.dgraph.io.
For discussions about Dgraph     , visit https://discuss.dgraph.io.
To say hi to the community       , visit https://dgraph.slack.com.

Licensed under Apache 2.0 + Commons Clause. Copyright 2015-2018 Dgraph Labs, Inc.


Setting up grpc listener at: 0.0.0.0:5080
Setting up http listener at: 0.0.0.0:6080
2018/10/30 03:19:51 Error while opening WAL store error: sync zw: invalid argument
While syncing directory: zw.
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.syncDir
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/db.go:461
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.helpRewrite
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/manifest.go:275
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.helpOpenOrCreateManifestFile
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/manifest.go:134
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.openOrCreateManifestFile
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/manifest.go:116
github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger.Open
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/dgraph-io/badger/db.go:234
github.com/dgraph-io/dgraph/dgraph/cmd/zero.run
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/cmd/zero/run.go:181
github.com/dgraph-io/dgraph/dgraph/cmd/zero.init.0.func1
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/cmd/zero/run.go:59
github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra.(*Command).execute
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra/command.go:702
github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra.(*Command).ExecuteC
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra/command.go:783
github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra.(*Command).Execute
        /ext-go/1/src/github.com/dgraph-io/dgraph/vendor/github.com/spf13/cobra/command.go:736
github.com/dgraph-io/dgraph/dgraph/cmd.Execute
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/cmd/root.go:47
main.main
        /ext-go/1/src/github.com/dgraph-io/dgraph/dgraph/main.go:24
runtime.main
        /usr/local/go/src/runtime/proc.go:201
runtime.goexit
        /usr/local/go/src/runtime/asm_amd64.s:1333
# cat trace_out
execve("/usr/local/bin/dgraph", ["dgraph", "zero"], 0x7ffe9cfa1a98 /* 5 vars */) = 0
brk(NULL)                               = 0x1f04000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=10084, ...}) = 0
mmap(NULL, 10084, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fd3823c6000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\16\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=14560, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd3823c4000
mmap(NULL, 2109712, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fd381f9e000
mprotect(0x7fd381fa1000, 2093056, PROT_NONE) = 0
mmap(0x7fd3821a0000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fd3821a0000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000b\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=144976, ...}) = 0
mmap(NULL, 2221184, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fd381d7f000
mprotect(0x7fd381d99000, 2093056, PROT_NONE) = 0
mmap(0x7fd381f98000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x19000) = 0x7fd381f98000 mmap(0x7fd381f9a000, 13440, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fd381f9a000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260\34\2\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=2030544, ...}) = 0
mmap(NULL, 4131552, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fd38198e000
mprotect(0x7fd381b75000, 2097152, PROT_NONE) = 0
mmap(0x7fd381d75000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e7000) = 0x7fd381d75000
mmap(0x7fd381d7b000, 15072, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fd381d7b000
close(3)                                = 0
mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd3823c1000
arch_prctl(ARCH_SET_FS, 0x7fd3823c1740) = 0
mprotect(0x7fd381d75000, 16384, PROT_READ) = 0
mprotect(0x7fd381f98000, 4096, PROT_READ) = 0
mprotect(0x7fd3821a0000, 4096, PROT_READ) = 0
mprotect(0x1cd1000, 118784, PROT_READ)  = 0
mprotect(0x7fd3823c9000, 4096, PROT_READ) = 0
munmap(0x7fd3823c6000, 10084)           = 0
set_tid_address(0x7fd3823c1a10)         = 246
set_robust_list(0x7fd3823c1a20, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7fd381d84cb0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7fd381d84d50, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
brk(NULL)                               = 0x1f04000
brk(0x1f25000)                          = 0x1f25000
sched_getaffinity(0, 8192, [0, 1, 2, 3]) = 16
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd382381000
mmap(0xc000000000, 67108864, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xc000000000
mmap(0xc000000000, 67108864, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xc000000000
mmap(NULL, 33554432, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd37f98e000
mmap(NULL, 2162688, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd37f77e000
mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd382371000
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=735616300}) = 0
mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd382361000
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=736025800}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=736200000}) = 0
rt_sigprocmask(SIG_SETMASK, NULL, [], 8) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=736910500}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=737085400}) = 0
sigaltstack(NULL, {ss_sp=NULL, ss_flags=SS_DISABLE, ss_size=0}) = 0
sigaltstack({ss_sp=0xc000002000, ss_flags=0, ss_size=32768}, NULL) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
gettid()                                = 246
rt_sigaction(SIGHUP, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGHUP, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGINT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGQUIT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGILL, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGILL, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGTRAP, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTRAP, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGABRT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGABRT, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGBUS, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGFPE, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGFPE, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGUSR1, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGUSR1, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGSEGV, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGUSR2, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGUSR2, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGPIPE, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPIPE, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGALRM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGALRM, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGTERM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTERM, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGSTKFLT, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSTKFLT, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGCHLD, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGCHLD, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGURG, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGURG, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGXCPU, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGXCPU, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGXFSZ, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGXFSZ, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGVTALRM, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGVTALRM, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGPROF, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPROF, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGWINCH, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGWINCH, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGIO, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGIO, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGPWR, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPWR, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGSYS, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGSYS, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRTMIN, NULL, {sa_handler=0x7fd381d84cb0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fd381d91890}, 8) = 0
rt_sigaction(SIGRTMIN, NULL, {sa_handler=0x7fd381d84cb0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fd381d91890}, 8) = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7fd381d84cb0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_1, NULL, {sa_handler=0x7fd381d84d50, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, 8) = 0
rt_sigaction(SIGRT_1, NULL, {sa_handler=0x7fd381d84d50, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7fd381d84d50, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_2, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_2, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_3, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_3, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_4, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_4, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_5, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_5, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_6, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_6, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_7, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_7, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_8, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_8, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_9, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_9, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_10, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_10, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_11, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_11, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_12, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_12, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_13, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_13, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_14, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_14, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_15, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_15, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_16, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_16, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_17, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_17, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_18, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_18, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_19, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_19, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_20, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_20, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_21, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_21, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_22, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_22, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_23, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_23, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_24, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_24, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_25, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_25, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_26, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_26, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_27, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_27, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_28, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_28, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_29, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_29, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_30, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_30, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_31, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_31, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigaction(SIGRT_32, NULL, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGRT_32, {sa_handler=0x881620, sa_mask=~[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd381d91890}, NULL, 8) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd37ef7d000
mprotect(0x7fd37ef7e000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7fd37f77cfb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fd37f77d9d0, tls=0x7fd37f77d700, child_tidptr=0x7fd37f77d9d0) = 247
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd37e77c000
mprotect(0x7fd37e77d000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7fd37ef7bfb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fd37ef7c9d0, tls=0x7fd37ef7c700, child_tidptr=0x7fd37ef7c9d0) = 248
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=764380400}) = 0
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=764798100}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=765019100}) = 0
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000082058, FUTEX_WAKE_PRIVATE, 1) = 1
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd37d77a000
mprotect(0x7fd37d77b000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7fd37df79fb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fd37df7a9d0, tls=0x7fd37df7a700, child_tidptr=0x7fd37df7a9d0) = 250
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd382321000
readlinkat(AT_FDCWD, "/proc/self/exe", "/usr/local/bin/dgraph", 128) = 21
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
fcntl(0, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
fcntl(1, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
fcntl(2, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
openat(AT_FDCWD, "/proc/sys/net/core/somaxconn", O_RDONLY|O_CLOEXEC) = 3
epoll_create1(EPOLL_CLOEXEC)            = 4
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=2184339200, u64=140546399166208}}) = 0
fcntl(3, F_GETFL)                       = 0x8000 (flags O_RDONLY|O_LARGEFILE)
fcntl(3, F_SETFL, O_RDONLY|O_NONBLOCK|O_LARGEFILE) = 0
read(3, "128\n", 65536)                 = 4
read(3, "", 65532)                      = 0
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc000058b3c) = 0
close(3)                                = 0
mmap(NULL, 1439992, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd37d61a000
clock_gettime(CLOCK_REALTIME, {tv_sec=1540869591, tv_nsec=43979800}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=827645900}) = 0
getpid()                                = 246
futex(0xc000072140, FUTEX_WAKE_PRIVATE, 1) = 1
uname({sysname="Linux", nodename="fdd174a4d553", ...}) = 0
getuid()                                = 0
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
connect(3, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(3)                                = 0
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
connect(3, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(3)                                = 0
openat(AT_FDCWD, "/etc/nsswitch.conf", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=497, ...}) = 0
read(3, "# /etc/nsswitch.conf\n#\n# Example"..., 4096) = 497
read(3, "", 4096)                       = 0
close(3)                                = 0
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=10084, ...}) = 0
mmap(NULL, 10084, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fd3823c6000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libnss_compat.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\22\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=39744, ...}) = 0
mmap(NULL, 2136256, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fd37d410000
mprotect(0x7fd37d418000, 2097152, PROT_NONE) = 0
mmap(0x7fd37d618000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7fd37d618000
close(3)                                = 0
mprotect(0x7fd37d618000, 4096, PROT_READ) = 0
munmap(0x7fd3823c6000, 10084)           = 0
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=10084, ...}) = 0
mmap(NULL, 10084, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fd3823c6000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libnss_nis.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p \0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=47576, ...}) = 0
mmap(NULL, 2143624, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fd37d204000
mprotect(0x7fd37d20f000, 2093056, PROT_NONE) = 0
mmap(0x7fd37d40e000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7fd37d40e000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libnsl.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220@\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=97176, ...}) = 0
mmap(NULL, 2202200, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fd37cfea000
mprotect(0x7fd37d001000, 2093056, PROT_NONE) = 0
mmap(0x7fd37d200000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7fd37d200000 mmap(0x7fd37d202000, 6744, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fd37d202000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libnss_files.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P#\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=47568, ...}) = 0
mmap(NULL, 2168632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fd37cdd8000
mprotect(0x7fd37cde3000, 2093056, PROT_NONE) = 0
mmap(0x7fd37cfe2000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7fd37cfe2000
mmap(0x7fd37cfe4000, 22328, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fd37cfe4000
close(3)                                = 0
mprotect(0x7fd37cfe2000, 4096, PROT_READ) = 0
mprotect(0x7fd37d200000, 4096, PROT_READ) = 0
mprotect(0x7fd37d40e000, 4096, PROT_READ) = 0
munmap(0x7fd3823c6000, 10084)           = 0
openat(AT_FDCWD, "/etc/passwd", O_RDONLY|O_CLOEXEC) = 3
lseek(3, 0, SEEK_CUR)                   = 0
fstat(3, {st_mode=S_IFREG|0644, st_size=926, ...}) = 0
mmap(NULL, 926, PROT_READ, MAP_SHARED, 3, 0) = 0x7fd3823c8000
lseek(3, 926, SEEK_SET)                 = 926
munmap(0x7fd3823c8000, 926)             = 0
close(3)                                = 0
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
getpid()                                = 246
newfstatat(AT_FDCWD, "/proc", {st_mode=S_IFDIR|0555, st_size=0, ...}, 0) = 0
openat(AT_FDCWD, "/proc/stat", O_RDONLY|O_CLOEXEC) = 3
epoll_ctl(4, EPOLL_CTL_ADD, 3, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=2184339200, u64=140546399166208}}) = 0
fcntl(3, F_GETFL)                       = 0x8000 (flags O_RDONLY|O_LARGEFILE)
fcntl(3, F_SETFL, O_RDONLY|O_NONBLOCK|O_LARGEFILE) = 0
read(3, "cpu  2182 0 2569 241021 7443 0 4"..., 4096) = 3239
read(3, "", 4096)                       = 0
epoll_ctl(4, EPOLL_CTL_DEL, 3, 0xc0000eb2c4) = 0
close(3)                                = 0
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd3677ff000
mprotect(0x7fd367800000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7fd367ffefb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fd367fff9d0, tls=0x7fd367fff700, child_tidptr=0x7fd367fff9d0) = 252
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004ebc0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004ebc0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004ebc0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc00004e840, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc00004ebc0, FUTEX_WAKE_PRIVATE, 1) = 1
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
mmap(NULL, 8392704, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd3667fd000
mprotect(0x7fd3667fe000, 8388608, PROT_READ|PROT_WRITE) = 0
clone(child_stack=0x7fd366ffcfb0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fd366ffd9d0, tls=0x7fd366ffd700, child_tidptr=0x7fd366ffd9d0) = 254
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_REALTIME, {tv_sec=1540869591, tv_nsec=70290300}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=854036600}) = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd3822e1000
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_REALTIME, {tv_sec=1540869591, tv_nsec=71749400}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=855452300}) = 0
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_REALTIME, {tv_sec=1540869591, tv_nsec=72762100}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=856420600}) = 0
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
clock_gettime(CLOCK_REALTIME, {tv_sec=1540869591, tv_nsec=73880400}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=857606000}) = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd3822a1000
clock_gettime(CLOCK_REALTIME, {tv_sec=1540869591, tv_nsec=79329100}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=863016600}) = 0
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_REALTIME, {tv_sec=1540869591, tv_nsec=90817900}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=874481200}) = 0
clock_gettime(CLOCK_REALTIME, {tv_sec=1540869591, tv_nsec=91863900}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=875528900}) = 0
epoll_pwait(4, [], 128, 0, NULL, 0)     = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=875925200}) = 0
mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd382261000
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=877311000}) = 0
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7d6d0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0xc000089d40, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0xc0000724c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
nanosleep({tv_sec=0, tv_nsec=3000}, NULL) = 0
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc00036b640, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7dcb0, FUTEX_WAKE_PRIVATE, 1) = 1
sched_yield()                           = 0
futex(0x1d7d6c0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7d5f0, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
futex(0xc0000892c0, FUTEX_WAKE_PRIVATE, 1) = 1
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=922847500}) = 0
clock_gettime(CLOCK_MONOTONIC, {tv_sec=636, tv_nsec=923170700}) = 0
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1d7dc68, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = 0
futex(0x1d7e340, FUTEX_WAIT_PRIVATE, 0, NULL) = ?
+++ exited with 1 +++
#

Interestingly, dgraph is able to create D:/dgraph/zw/MANIFEST. The MANIFEST file contains:

Bdgr   �        

Could be related to: #1325

[srfrog]

Clearly there's a race condition. I found this blog post maybe it can offer some insight - https://medium.com/software-development-stories/developing-a-dockerized-web-app-on-windows-subsystem-for-linux-wsl-61efec965080

I know some people that are trying to migrate to WSL from MacOS (because of the lackluster dev support) so if you can figure it out, please post your findings in our discuss - https://discuss.dgraph.io

I'm going to close this issue, but hit back if you think it's a Dgraph bug. Good luck