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close git bug that I reported to git mailing list

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Joey Hess 2022-07-22 13:24:24 -04:00
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doc/bugs/Incompatibility_with_git_2.37/comment_4_95b8ea35cd10ac80e1d01b658e24d7a9._comment Normal file
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[[!comment format=mdwn
username="joey"
subject="""comment 4"""
date="2022-07-22T16:25:27Z"
content="""
Seems that git write-tree is segfaulting, which leaves the index locked:
openat(AT_FDCWD, "/tmp/n/.git/annex/index.lock", O_RDWR|O_CREAT|O_EXCL|O_CLOEXEC, 0666) = 3
rt_sigaction(SIGINT, {sa_handler=0x55f953819fb0, sa_mask=[INT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fba9b3d2940}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGHUP, {sa_handler=0x55f953819fb0, sa_mask=[HUP], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fba9b3d2940}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTERM, {sa_handler=0x55f953819fb0, sa_mask=[TERM], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fba9b3d2940}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=0x55f953819fb0, sa_mask=[QUIT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fba9b3d2940}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGPIPE, {sa_handler=0x55f953819fb0, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fba9b3d2940}, {sa_handler=SIG_DFL, sa_mask=[PIPE], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fba9b3d2940}, 8) = 0
getpid() = 2873826
openat(AT_FDCWD, "/tmp/n/.git/annex/index", O_RDONLY) = -1 ENOENT (No such file or directory)
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0xd0} ---
+++ killed by SIGSEGV +++
And this is not due to anything git-annex is doing, git is 100% broken:
joey@darkstar:/tmp>git init emptyrepo
warning: templates not found in /home/joey/share/git-core/templates
Initialized empty Git repository in /tmp/emptyrepo/.git/
joey@darkstar:/tmp>cd emptyrepo/
joey@darkstar:/tmp/emptyrepo>git config core.untrackedCache true
joey@darkstar:/tmp/emptyrepo>git write-tree
Segmentation fault
git 2.37.1 has the same problem. I have emailed the git list about it.
"""]]