x/tools/cmd/goimports: infinite loop scanning standard library #31579
Description
Twice today I've seen a recently-compiled goimports spin off into using 1000+% CPU for minutes.
Specifically, I am using goimports from x/tools 4796d4b:
$ goversion -m $(which goimports)
/Users/rsc/bin/goimports devel +ad9692026b Fri Apr 12 10:24:28 2019 -0400
path golang.org/x/tools/cmd/goimports
mod golang.org/x/tools v0.0.0-20190418235243-4796d4bd3df0
$
The first time I did kill -ABRT and found it was doing lots of file system scans,
which seemed not specific enough to file a report.
The second time I guessed it was the same and did lsof a few times.
It was scanning the standard library, repeatedly:
r$ lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 8r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 20r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 25r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 26r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 8r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 16r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 20r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 25r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 26r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 8r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13 vnode: FD unavailable
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 16r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 20r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24 vnode: FD unavailable
goimports 59507 rsc 25r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 26r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 16r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 20r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 25r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 8r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 16r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 20r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 25r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 26r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 8r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 16r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 20r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 25 vnode: FD unavailable
goimports 59507 rsc 26r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 8r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 16r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 20r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 25r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 26r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 8r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 16r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 20r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 25r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
r$ !!
lsof -p 59507
!COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 8r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 16r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 20r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 25 vnode: FD unavailable
goimports 59507 rsc 26r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 8r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 16 vnode: FD unavailable
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 20r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24 vnode: FD unavailable
goimports 59507 rsc 25r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 26r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 8r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 16r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 20r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 25r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 26 vnode: FD unavailable
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 8r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13 vnode: FD unavailable
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15 vnode: FD unavailable
goimports 59507 rsc 16r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 20r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 25r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 26r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 8r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 16r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 20r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 25r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 26r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 2336 2014854 /Users/rsc/go/src
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 8r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15 vnode: FD unavailable
goimports 59507 rsc 16r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 20r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 25r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 26r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 8r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 16r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 20r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 24r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 25 vnode: FD unavailable
goimports 59507 rsc 26 vnode: FD unavailable
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
r$ !!
lsof -p 59507
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
goimports 59507 rsc cwd DIR 1,4 3712 691285 /Users/rsc
goimports 59507 rsc txt REG 1,4 7802624 22025659 /Users/rsc/bin/goimports
goimports 59507 rsc txt REG 1,4 841456 647449 /usr/lib/dyld
goimports 59507 rsc txt REG 1,4 1177030656 19448266 /private/var/db/dyld/dyld_shared_cache_x86_64h
goimports 59507 rsc 0r CHR 3,2 0t0 308 /dev/null
goimports 59507 rsc 1 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 2 PIPE 0x951377e0143cea19 16384 ->0x951377e0143cf859
goimports 59507 rsc 3r REG 1,4 16434 22048881 /Users/rsc/src/golang.org/x/exp/notary/internal/sumweb/client.go
goimports 59507 rsc 4r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 5u KQUEUE count=0, state=0xa
goimports 59507 rsc 6r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 7r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 8r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 9r DIR 1,4 512 2020954 /Users/rsc/go/src/strings
goimports 59507 rsc 10r DIR 1,4 448 2018270 /Users/rsc/go/src/go
goimports 59507 rsc 11r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 12r DIR 1,4 6240 2019147 /Users/rsc/go/src/net
goimports 59507 rsc 13r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 14r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 15r DIR 1,4 2336 2014854 /Users/rsc/go/src
goimports 59507 rsc 16r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 17r DIR 1,4 256 2015206 /Users/rsc/go/src/bufio
goimports 59507 rsc 18r DIR 1,4 224 2018267 /Users/rsc/go/src/flag
goimports 59507 rsc 19r DIR 1,4 704 2017875 /Users/rsc/go/src/crypto
goimports 59507 rsc 21r DIR 1,4 256 2017874 /Users/rsc/go/src/context
goimports 59507 rsc 22r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 23r DIR 1,4 832 2015210 /Users/rsc/go/src/cmd
goimports 59507 rsc 25r DIR 1,4 256 2017504 /Users/rsc/go/src/compress
goimports 59507 rsc 26r DIR 1,4 928 2020952 /Users/rsc/go/src/strconv
goimports 59507 rsc 27r DIR 1,4 448 2019860 /Users/rsc/go/src/regexp
goimports 59507 rsc 28 vnode: FD unavailable
r$
You can see all the file descriptors ≥ 7 are getting recycled quickly.
Then I sent it an ABRT and got this dump:
SIGABRT: abort
PC=0x7fff5bf44a16 m=0 sigcode=0
goroutine 0 [idle]:
runtime.pthread_cond_wait(0x159b768, 0x159b728, 0x7ffe00000000)
/Users/rsc/go/src/runtime/sys_darwin.go:368 +0x39
runtime.semasleep(0xffffffffffffffff, 0x0)
/Users/rsc/go/src/runtime/os_darwin.go:63 +0x85
runtime.notesleep(0x159b528)
/Users/rsc/go/src/runtime/lock_sema.go:167 +0xe0
runtime.stopm()
/Users/rsc/go/src/runtime/proc.go:1925 +0xc1
runtime.findrunnable(0xc000036f00, 0x0)
/Users/rsc/go/src/runtime/proc.go:2388 +0x546
runtime.schedule()
/Users/rsc/go/src/runtime/proc.go:2514 +0x21b
runtime.park_m(0xc0000c4900)
/Users/rsc/go/src/runtime/proc.go:2594 +0xa1
runtime.mcall(0x1058a06)
/Users/rsc/go/src/runtime/asm_amd64.s:312 +0x5b
goroutine 1 [runnable]:
golang.org/x/tools/internal/fastwalk.Walk(0xc0000de860, 0x11, 0xc0001f8310, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:93 +0x3c2
golang.org/x/tools/internal/gopathwalk.walkDir(0xc0000de860, 0x11, 0x1, 0xc0001fe600, 0x12e0100)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/gopathwalk/walk.go:83 +0x1e0
golang.org/x/tools/internal/gopathwalk.Walk(0xc0001fe5a0, 0x2, 0x2, 0xc0001fe600, 0x100)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/gopathwalk/walk.go:63 +0x88
golang.org/x/tools/imports.(*moduleResolver).scan(0xc0001e3860, 0xc0001e7f80, 0xc0001e3860, 0xc00019f9e0, 0x0, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/imports/mod.go:226 +0x348
golang.org/x/tools/imports.addExternalCandidates(0xc0000ca240, 0xc0001e7f80, 0x7ffeefbff822, 0x40, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/imports/fix.go:683 +0x73
golang.org/x/tools/imports.fixImportsDefault(0xc00015a080, 0xc000172a80, 0x7ffeefbff822, 0x40, 0xc000172000, 0x7e00, 0x157daa0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/imports/fix.go:504 +0x2f9
golang.org/x/tools/imports.process(0x7ffeefbff822, 0x40, 0xc00016a000, 0x3f61, 0x7e00, 0x157daa0, 0xc000172000, 0xc00016a000, 0x3f61, 0x7e00, ...)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/imports/imports.go:72 +0x739
golang.org/x/tools/imports.Process(0x7ffeefbff822, 0x40, 0xc00016a000, 0x3f61, 0x7e00, 0x157daa0, 0x0, 0x0, 0xc000000180, 0x200000003, ...)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/imports/imports.go:50 +0xcc
main.processFile(0x7ffeefbff822, 0x40, 0x0, 0x0, 0x138e700, 0xc000086008, 0x1, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/cmd/goimports/goimports.go:136 +0x13c
main.gofmtMain()
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/cmd/goimports/goimports.go:280 +0x230
main.main()
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/cmd/goimports/goimports.go:196 +0x33
goroutine 37 [runnable]:
syscall.syscallPtr(0x10b9fa0, 0x18, 0x0, 0x0, 0x4400000, 0x0, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:96 +0x2e
syscall.fdopendir(0x18, 0x1312035, 0x1, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin_amd64.go:62 +0x4d
syscall.Getdirentries(0x17, 0xc00031fe18, 0x2000, 0x2000, 0xc00031fd68, 0x0, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:381 +0xb6
syscall.ReadDirent(0x17, 0xc00031fe18, 0x2000, 0x2000, 0xc080000000, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e340, 0x15, 0xc000321e88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e340, 0x15, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 38 [runnable]:
syscall.syscallPtr(0x10b9fa0, 0xf, 0x0, 0x0, 0x67000a0, 0x0, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:96 +0x2e
syscall.fdopendir(0xf, 0x1312035, 0x1, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin_amd64.go:62 +0x4d
syscall.Getdirentries(0x1b, 0xc00032de18, 0x2000, 0x2000, 0xc00032dd68, 0x0, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:381 +0xb6
syscall.ReadDirent(0x1b, 0xc00032de18, 0x2000, 0x2000, 0xc074548220, 0xc, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e4c0, 0x18, 0xc00032fe88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e4c0, 0x18, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 39 [runnable]:
syscall.syscallPtr(0x10b9fa0, 0x1a, 0x0, 0x0, 0x6500000, 0x0, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:96 +0x2e
syscall.fdopendir(0x1a, 0x1312035, 0x1, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin_amd64.go:62 +0x4d
syscall.Getdirentries(0x4, 0xc000199e18, 0x2000, 0x2000, 0xc000199d68, 0x0, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:381 +0xb6
syscall.ReadDirent(0x4, 0xc000199e18, 0x2000, 0x2000, 0xc074544555, 0x7, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc0000de860, 0x11, 0xc00019be88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc0000de860, 0x11, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 40 [runnable]:
syscall.syscallPtr(0x10b9fa0, 0x8, 0x0, 0x0, 0x6700000, 0x0, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:96 +0x2e
syscall.fdopendir(0x8, 0x1312035, 0x1, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin_amd64.go:62 +0x4d
syscall.Getdirentries(0x6, 0xc000285e18, 0x2000, 0x2000, 0xc000285d68, 0x0, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:381 +0xb6
syscall.ReadDirent(0x6, 0xc000285e18, 0x2000, 0x2000, 0xc080000000, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e3c0, 0x18, 0xc000287e88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e3c0, 0x18, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 41 [runnable]:
syscall.syscallPtr(0x10b9fa0, 0x10, 0x0, 0x0, 0x1702810, 0x0, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:96 +0x2e
syscall.fdopendir(0x10, 0x1312035, 0x1, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin_amd64.go:62 +0x4d
syscall.Getdirentries(0x16, 0xc000323e18, 0x2000, 0x2000, 0xc000323d68, 0x0, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:381 +0xb6
syscall.ReadDirent(0x16, 0xc000323e18, 0x2000, 0x2000, 0xc080000000, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e3e0, 0x1a, 0xc000325e88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e3e0, 0x1a, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 42 [runnable]:
syscall.syscall(0x10ba190, 0x6400000, 0xc0003118e0, 0xc000311cf8, 0x0, 0x20000000200, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:63 +0x2e
syscall.readdir_r(0x6400000, 0xc0003118e0, 0xc000311cf8, 0x0)
/Users/rsc/go/src/syscall/zsyscall_darwin_amd64.go:1273 +0x68
syscall.Getdirentries(0x12, 0xc000311e38, 0x1fe0, 0x1fe0, 0xc000311d68, 0x20, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:397 +0x1a6
syscall.ReadDirent(0x12, 0xc000311e18, 0x2000, 0x2000, 0xc0744e1380, 0x15, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e400, 0x16, 0xc000313e88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e400, 0x16, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 43 [runnable]:
syscall.syscallPtr(0x10b9fa0, 0xd, 0x0, 0x0, 0x65000a0, 0x0, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:96 +0x2e
syscall.fdopendir(0xd, 0x1312035, 0x1, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin_amd64.go:62 +0x4d
syscall.Getdirentries(0x9, 0xc0002dfe18, 0x2000, 0x2000, 0xc0002dfd68, 0x0, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:381 +0xb6
syscall.ReadDirent(0x9, 0xc0002dfe18, 0x2000, 0x2000, 0xc074544690, 0xf, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e440, 0x19, 0xc0002e1e88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e440, 0x19, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 44 [runnable]:
syscall.syscallPtr(0x10b9fa0, 0x13, 0x0, 0x0, 0x6200000, 0x0, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:96 +0x2e
syscall.fdopendir(0x13, 0x1312035, 0x1, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin_amd64.go:62 +0x4d
syscall.Getdirentries(0xa, 0xc000281e18, 0x2000, 0x2000, 0xc000281d68, 0x0, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:381 +0xb6
syscall.ReadDirent(0xa, 0xc000281e18, 0x2000, 0x2000, 0xc080000000, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e480, 0x14, 0xc000283e88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e480, 0x14, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 45 [runnable]:
syscall.syscallPtr(0x10b9fa0, 0x19, 0x0, 0x0, 0x65001e0, 0x0, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:96 +0x2e
syscall.fdopendir(0x19, 0x1312035, 0x1, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin_amd64.go:62 +0x4d
syscall.Getdirentries(0xe, 0xc0002f3e18, 0x2000, 0x2000, 0xc0002f3d68, 0x0, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:381 +0xb6
syscall.ReadDirent(0xe, 0xc0002f3e18, 0x2000, 0x2000, 0xc074548167, 0x3, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e420, 0x19, 0xc0002f5e88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e420, 0x19, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 46 [runnable]:
syscall.syscallPtr(0x10b9fa0, 0x1c, 0x0, 0x0, 0x6300000, 0x0, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:96 +0x2e
syscall.fdopendir(0x1c, 0x1312035, 0x1, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin_amd64.go:62 +0x4d
syscall.Getdirentries(0x15, 0xc00030de18, 0x2000, 0x2000, 0xc00030dd68, 0x0, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:381 +0xb6
syscall.ReadDirent(0x15, 0xc00030de18, 0x2000, 0x2000, 0xc07453dfe0, 0x11, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e4a0, 0x19, 0xc00030fe88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e4a0, 0x19, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 47 [runnable]:
syscall.syscall(0x10ba190, 0x6600000, 0xc0002e38e0, 0xc0002e3cf8, 0x0, 0x610000006100, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:63 +0x2e
syscall.readdir_r(0x6600000, 0xc0002e38e0, 0xc0002e3cf8, 0x0)
/Users/rsc/go/src/syscall/zsyscall_darwin_amd64.go:1273 +0x68
syscall.Getdirentries(0xc, 0xc0002e4e18, 0x1000, 0x1000, 0xc0002e3d68, 0x1000, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:397 +0x1a6
syscall.ReadDirent(0xc, 0xc0002e3e18, 0x2000, 0x2000, 0xc074540b20, 0x12, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e460, 0x15, 0xc0002e5e88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e460, 0x15, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
goroutine 48 [runnable]:
syscall.syscall(0x10ba190, 0x64000a0, 0xc0002ef8e0, 0xc0002efcf8, 0x0, 0x50000000500, 0x0)
/Users/rsc/go/src/runtime/sys_darwin.go:63 +0x2e
syscall.readdir_r(0x64000a0, 0xc0002ef8e0, 0xc0002efcf8, 0x0)
/Users/rsc/go/src/syscall/zsyscall_darwin_amd64.go:1273 +0x68
syscall.Getdirentries(0x11, 0xc0002efea8, 0x1f70, 0x1f70, 0xc0002efd68, 0x90, 0x0, 0x0)
/Users/rsc/go/src/syscall/syscall_darwin.go:397 +0x1a6
syscall.ReadDirent(0x11, 0xc0002efe18, 0x2000, 0x2000, 0xc0745445b0, 0xc, 0x0)
/Users/rsc/go/src/syscall/syscall_bsd.go:71 +0x5c
golang.org/x/tools/internal/fastwalk.readDir(0xc00017e380, 0x17, 0xc0002f1e88, 0x0, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk_unix.go:38 +0x41b
golang.org/x/tools/internal/fastwalk.(*walker).walk(0xc0001fe630, 0xc00017e380, 0x17, 0x1, 0x1, 0x0)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:195 +0x6a
golang.org/x/tools/internal/fastwalk.(*walker).doWork(0xc0001fe630, 0xc00009b370)
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:134 +0x14d
created by golang.org/x/tools/internal/fastwalk.Walk
/Users/rsc/pkg/mod/golang.org/x/tools@v0.0.0-20190418235243-4796d4bd3df0/internal/fastwalk/fastwalk.go:81 +0x21c
rax 0x104
rbx 0x7d79b00
rcx 0x7ffeefbff268
rdx 0x7d79b00
rdi 0x159b768
rsi 0x7d79b0107d79c00
rbp 0x7ffeefbff300
rsp 0x7ffeefbff268
r8 0x0
r9 0x60
r10 0x0
r11 0x202
r12 0x159b768
r13 0x7ffeefbff288
r14 0x1
r15 0x7fff94495380
rip 0x7fff5bf44a16
rflags 0x203
cs 0x7
fs 0x0
gs 0x0
I am not sure why it is scanning the standard library repeatedly in addExternalCandidates (as opposed to say addStdlibCandidates) but bugs are bugs.
/cc @ianthehat