I pulled and installed the latest HEAD from github and noticed what
seems to be a fairly serious issue. This list seems fairly active, so
it seems appropriate to give a heads up here without the formal bug
report.
The problem first manifested for me while trying to do a git pull
under a tmux session. Git errors out with a waitpid error.
This doesn't happen under 2.5 release (and didn't happen on earlier
pulls of dev HEAD).
I've tried several versions of git, and several older kernels (kernel
update was concurrent with the tmux update, as I tend to update tmux
HEAD when I'm going to reboot).
Took me a bit to isolate tmux as the (at least reproducible) trigger.
Here's a tail bit of strace output (which may be helpful).
stat("/home/fortier/libexec/git-core/git", 0x7ffd96ec8f10) = -1 ENOENT
(No such file or directory)
stat("/home/fortier/bin/git", {st_mode=S_IFREG|0755, st_size=10749376, ...}) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
clone(child_stack=0,
flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x7f5f28d369d0) = 6253
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
close(4) = 0
read(3, "", 8) = 0
close(3) = 0
wait4(6253, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 6253
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6253,
si_uid=27718, si_status=0, si_utime=0, si_stime=0} ---
lstat(".git/HEAD", {st_mode=S_IFREG|0644, st_size=23, ...}) = 0
open(".git/HEAD", O_RDONLY) = 3
read(3, "ref: refs/heads/master\n", 256) = 23
read(3, "", 233) = 0
close(3) = 0
lstat(".git/refs/heads/master", {st_mode=S_IFREG|0644, st_size=41, ...}) = 0
open(".git/refs/heads/master", O_RDONLY) = 3
read(3, "b305c41fd5e5b8daadc46fbfadc8f60a"..., 256) = 41
read(3, "", 215) = 0
close(3) = 0
lstat(".git/refs/HEAD", 0x7ffd96ec8e50) = -1 ENOENT (No such file or directory)
stat(".git/packed-refs", {st_mode=S_IFREG|0644, st_size=457, ...}) = 0
lstat(".git/refs/tags/HEAD", 0x7ffd96ec8e50) = -1 ENOENT (No such file
or directory)
stat(".git/packed-refs", {st_mode=S_IFREG|0644, st_size=457, ...}) = 0
lstat(".git/refs/heads/HEAD", 0x7ffd96ec8e50) = -1 ENOENT (No such
file or directory)
stat(".git/packed-refs", {st_mode=S_IFREG|0644, st_size=457, ...}) = 0
lstat(".git/refs/remotes/HEAD", 0x7ffd96ec8e50) = -1 ENOENT (No such
file or directory)
stat(".git/packed-refs", {st_mode=S_IFREG|0644, st_size=457, ...}) = 0
lstat(".git/refs/remotes/HEAD/HEAD", 0x7ffd96ec8e50) = -1 ENOENT (No
such file or directory)
stat(".git/packed-refs", {st_mode=S_IFREG|0644, st_size=457, ...}) = 0
open(".git/FETCH_HEAD", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=79, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0x7f5f28d60000
read(3, "b305c41fd5e5b8daadc46fbfadc8f60a"..., 4096) = 79
read(3, "", 4096) = 0
close(3) = 0
munmap(0x7f5f28d60000, 4096) = 0
pipe([3, 4]) = 0
stat("/home/fortier/libexec/git-core/git", 0x7ffd96ec8ef0) = -1 ENOENT
(No such file or directory)
stat("/home/fortier/bin/git", {st_mode=S_IFREG|0755, st_size=10749376, ...}) = 0
rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], [], 8) = 0
clone(child_stack=0,
flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x7f5f28d369d0) = 6543
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
close(4) = 0
read(3, "", 8) = 0
close(3) = 0
wait4(6543, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 6543
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6543,
si_uid=27718, si_status=0, si_utime=0, si_stime=0} ---
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0
close(1) = 0
exit_group(0) = ?
+++ exited with 0 +++
--
Josef Fortier
(612) 234-5135
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