HHVM stops at segmentation fault.

[safe-net9]

I ran Wordpress on HHVM.
When Wordpress accesses MySQL, HHVM stops.

Is there any good solution?

/var/home/ap/hhvm/bin/hhvm-gdb /var/home/ap/hhvm/bin/hhvm -c /tmp/core.11098
Debugging with hhvm: /var/home/ap/hhvm/bin/hhvm ...
GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-100.el7
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/...
Reading symbols from /var/home/ap/hhvm/bin/hhvm...done.
[New LWP 11101]
[New LWP 11100]
[New LWP 11098]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by /var/home/ap/hhvm/bin/hhvm --config /etc/hhvm/server.ini --user nginx --mode da'. Program terminated with signal 11, Segmentation fault. #0 net_field_length (packet=packet@entry=0x7f6171bf9428) at /var/home/src/hhvm-3.23.1/third-party/webscalesqlclient/src/sql-common/pack.c:25 25 if (*pos < 251) warning: File "/var/home/lib/gcc494/lib64/libstdc++.so.6.0.20-gdb.py" auto-loading has been declined by your auto-load safe-path' set to "$debugdir:$datadir/auto-load:/usr/bin/mono-gdb.py".
To enable execution of this file add
add-auto-load-safe-path /var/home/lib/gcc494/lib64/libstdc++.so.6.0.20-gdb.py
line to your configuration file "/root/.gdbinit".
To completely disable this security protection add
set auto-load safe-path /
line to your configuration file "/root/.gdbinit".
Missing separate debuginfos, use: debuginfo-install ImageMagick-6.7.8.9-15.el7_2.x86_64 audit-libs-2.7.6-3.el7.x86_64 bzip2-libs-1.0.6-13.el7.x86_64 cyrus-sasl-lib-2.1.26-21.el7.x86_64 double-conversion-2.0.1-3.el7.x86_64 elfutils-libelf-0.168-8.el7.x86_64 expat-2.1.0-10.el7_3.x86_64 fastlz-0.1.0-0.1.20070619svnrev12.el7.x86_64 fontconfig-2.10.95-11.el7.x86_64 freetype-2.4.11-15.el7.x86_64 fribidi-0.19.4-6.el7.x86_64 gflags-2.1.1-6.el7.x86_64 glibc-2.17-196.el7.x86_64 glog-0.3.3-8.el7.x86_64 gmp-6.0.0-15.el7.x86_64 jbigkit-libs-2.0-11.el7.x86_64 jemalloc-3.6.0-1.el7.x86_64 keyutils-libs-1.5.8-3.el7.x86_64 krb5-libs-1.15.1-8.el7.x86_64 libICE-1.0.9-9.el7.x86_64 libSM-1.2.2-2.el7.x86_64 libX11-1.6.5-1.el7.x86_64 libXau-1.0.8-2.1.el7.x86_64 libXext-1.3.3-3.el7.x86_64 libXt-1.1.5-3.el7.x86_64 libattr-2.4.46-12.el7.x86_64 libc-client-2007f-16.el7.x86_64 libcap-2.22-9.el7.x86_64 libcap-ng-0.7.5-4.el7.x86_64 libcom_err-1.42.9-10.el7.x86_64 libcurl-7.29.0-42.el7.x86_64 libdwarf-20130207-4.el7.x86_64 libedit-3.0-12.20121213cvs.el7.x86_64 libevent-2.0.21-4.el7.x86_64 libgcrypt-1.5.3-14.el7.x86_64 libgpg-error-1.12-3.el7.x86_64 libidn-1.28-4.el7.x86_64 libjpeg-turbo-1.2.90-5.el7.x86_64 libmemcached-1.0.16-5.el7.x86_64 libpng-1.5.13-7.el7_2.x86_64 libselinux-2.5-11.el7.x86_64 libssh2-1.4.3-10.el7_2.1.x86_64 libtiff-4.0.3-27.el7_3.x86_64 libtool-ltdl-2.4.2-22.el7_3.x86_64 libuuid-2.23.2-43.el7.x86_64 libvpx-1.3.0-5.el7_0.x86_64 libxcb-1.12-1.el7.x86_64 libxml2-2.9.1-6.el7_2.3.x86_64 libxslt-1.1.28-5.el7.x86_64 libyaml-0.1.4-11.el7_0.x86_64 lz4-1.7.3-1.el7.x86_64 ncurses-libs-5.9-14.20130511.el7_4.x86_64 nspr-4.13.1-1.0.el7_3.x86_64 nss-3.28.4-15.el7_4.x86_64 nss-softokn-freebl-3.28.3-8.el7_4.x86_64 nss-util-3.28.4-3.el7.x86_64 numactl-libs-2.0.9-6.el7_2.x86_64 oniguruma-5.9.5-3.el7.x86_64 openldap-2.4.44-5.el7.x86_64 openssl-libs-1.0.2k-8.el7.x86_64 pam-1.1.8-18.el7.x86_64 pcre-8.32-17.el7.x86_64 re2-20160401-2.el7.x86_64 sqlite-3.7.17-8.el7.x86_64 sssd-client-1.15.2-50.el7_4.6.x86_64 tbb-4.1-9.20130314.el7.x86_64 unixODBC-2.3.1-11.el7.x86_64 xz-libs-5.2.2-1.el7.x86_64 zlib-1.2.7-17.el7.x86_64
---Type to continue, or q to quit---
For more information about this security protection see the
"Auto-loading safe path" section in the GDB manual. E.g., run from the shell:
info "(gdb)Auto-loading safe path"
Traceback (most recent call last):
File "/var/home/ap/hhvm/lib64/hhvm/gdb/hhvm.py", line 24, in
import stack
File "/var/home/ap/hhvm/lib64/hhvm/gdb/stack.py", line 11, in
import unwind
File "/var/home/ap/hhvm/lib64/hhvm/gdb/unwind.py", line 8, in
from gdb.unwinder import Unwinder, register_unwinder
ImportError: No module named unwinder
(gdb) bt
#0 net_field_length (packet=packet@entry=0x7f6171bf9428)
at /var/home/src/hhvm-3.23.1/third-party/webscalesqlclient/src/sql-common/pack.c:25
#1 0x0000000003033999 in read_ok_ex (mysql=mysql@entry=0x7f6184cb0800,
length=length@entry=107)
at /var/home/src/hhvm-3.23.1/third-party/webscalesqlclient/src/sql-common/client.c:723
#2 0x00000000036b8fb3 in cli_read_query_result (mysql=0x7f6184cb0800)
at /var/home/src/hhvm-3.23.1/third-party/webscalesqlclient/src/sql-common/client.c:6328
#3 0x00000000036fd36a in mysql_real_query (length=,
query=0x7f6171bf94d0 "SET NAMES utf8mb4", mysql=0x7f6184cb0800)
at /var/home/src/hhvm-3.23.1/third-party/webscalesqlclient/src/sql-common/client.c:6508
#4 mysql_set_character_set (mysql=0x7f6184cb0800,
cs_name=0x7f617ddb35b8 "utf8mb4")
at /var/home/src/hhvm-3.23.1/third-party/webscalesqlclient/src/sql-common/client.c:7424
#5 0x00000000036fd1d1 in HPHP::f_mysql_set_charset(HPHP::String const&, HPHP::Variant const&) ()
#6 0x00000000019ffda9 in HPHP::Variant HPHP::Native::callFuncIndirectImplHPHP::Variant(HPHP::TypedValue* ()(HPHP::ActRec), long*, int, double*, int) ()
#7 0x0000000001a0571a in void HPHP::Native::callFunc(HPHP::Func const*, ---Type to continue, or q to quit---
void*, HPHP::TypedValue*, int, HPHP::TypedValue&) ()
#8 0x0000000001a05abb in HPHP::TypedValue* HPHP::Native::functionWrapper(HPHP::ActRec*) ()
#9 0x00000000018c48e9 in unsigned char* HPHP::dispatchImpl() ()
#10 0x00000000036855ad in HPHP::enterVMAtFunc(HPHP::ActRec*, HPHP::StackArgsState, HPHP::VarEnv*) ()
#11 0x0000000003683f77 in HPHP::ExecutionContext::invokeFunc(HPHP::Func const*, HPHP::Variant const&, HPHP::ObjectData*, HPHP::Class*, HPHP::VarEnv*, HPHP::StringData*, HPHP::ExecutionContext::InvokeFlags, bool) ()
#12 0x00000000037a02d1 in HPHP::ExecutionContext::invokeUnit(HPHP::Unit const*)
()
#13 0x00000000037a0111 in HPHP::invoke_file(HPHP::String const&, bool, char const*) ()
#14 0x000000000379fed1 in HPHP::include_impl_invoke(HPHP::String const&, bool, char const*) ()
#15 0x000000000144add4 in HPHP::hphp_invoke(HPHP::ExecutionContext*, std::string const&, bool, HPHP::Array const&, HPHP::VRefParamValue const&, std::string const&, std::string const&, bool&, std::string&, bool, bool, bool) ()
#16 0x000000000378e387 in HPHP::HttpRequestHandler::executePHPRequest(HPHP::Transport*, HPHP::RequestURI&, HPHP::SourceRootInfo&) ()
#17 0x00000000037866e7 in HPHP::HttpRequestHandler::handleRequest(HPHP::Transport*) ()
#18 0x000000000174981f in HPHP::ServerWorker<std::shared_ptrHPHP::FastCGIJob, ---Type to continue, or q to quit---
HPHP::FastCGITransportTraits>::doJobImpl(std::shared_ptrHPHP::FastCGIJob, bool) ()
#19 0x000000000174a3ff in HPHP::JobQueueWorker<std::shared_ptrHPHP::FastCGIJob, HPHP::Server*, true, false, HPHP::JobQueueDropVMStack>::start() ()
#20 0x0000000000d47b87 in HPHP::AsyncFuncImpl::ThreadFunc(void*) ()
#21 0x0000000001528557 in HPHP::start_routine_wrapper(void*) ()
#22 0x00007f6193c36e25 in start_thread () from /lib64/libpthread.so.0
#23 0x00007f618d22534d in clone () from /lib64/libc.so.6

[lth]

b4ae418