389-ds-base

#49905 crash in entry cache
Closed: wontfix Opened by mreynolds.

Closed: wontfix
Reopen Issue

Issue Description

There is a crash seen in the entry cache with a stack trace like:

#0  __strcmp_sse42 () at ../sysdeps/x86_64/multiarch/strcmp-sse42.S:164
#1  0x00007fcb5cc9b1ec in entry_same_dn (e=<optimized out>, k=0x561251f093a0) at ldap/servers/slapd/back-ldbm/cache.c:142
#2  0x00007fcb5cc9b3ee in add_hash (ht=0x561235944000, key=key@entry=0x561251f093a0, keylen=<optimized out>, entry=entry@entry=0x56124e195440, alt=alt@entry=0x7fcb236c73d0)
    at ldap/servers/slapd/back-ldbm/cache.c:191
#3  0x00007fcb5cc9c8aa in entrycache_add_int (cache=cache@entry=0x5612358ee3c8, e=0x56124e195440, state=state@entry=2, alt=alt@entry=0x0) at ldap/servers/slapd/back-ldbm/cache.c:1297
#4  0x00007fcb5cc9cb3d in cache_add_tentative (cache=cache@entry=0x5612358ee3c8, e=<optimized out>, alt=alt@entry=0x0) at ldap/servers/slapd/back-ldbm/cache.c:1497
#5  0x00007fcb5ccd201d in ldbm_back_delete (pb=0x7fcb236c7a50) at ldap/servers/slapd/back-ldbm/ldbm_delete.c:717
#6  0x00007fcb6875efd0 in op_shared_delete (pb=pb@entry=0x7fcb236c7a50) at ldap/servers/slapd/delete.c:331
#7  0x00007fcb6875f352 in do_delete (pb=pb@entry=0x7fcb236c7a50) at ldap/servers/slapd/delete.c:97
#8  0x0000561233bd8642 in connection_dispatch_operation (pb=0x7fcb236c7a50, op=0x561237af44e0, conn=0x561237241e38) at ldap/servers/slapd/connection.c:623
#9  connection_threadmain () at ldap/servers/slapd/connection.c:1772
#10 0x00007fcb66b119bb in _pt_root (arg=0x5612371e1440) at ../../../nspr/pr/src/pthreads/ptthread.c:216
#11 0x00007fcb664b1e25 in start_thread (arg=0x7fcb236c8700) at pthread_create.c:308
#12 0x00007fcb65d9334d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

There is no reproducer, but there is a debug patch that contains an "avoid the crash/possibly fix the crash" fix. This patch will be attached next.

This ticket is just for tracking this issue...

Metadata Update from @mreynolds:
- Custom field component adjusted to None
- Custom field origin adjusted to None
- Custom field reviewstatus adjusted to None
- Custom field type adjusted to None
- Custom field version adjusted to None

0001-DEBUG-FIX.patch

Need braces on your if statements, but I imagine this is debug only rather than a permanent fix?

Need braces on your if statements, but I imagine this is debug only rather than a permanent fix?

This was a debug patch was given to a customer a while ago. It fixes the crash(its a hack), but it logs the info I need to figure out how we get into that state. I just didn't want the patch to get lost so I opened this ticket to preserve it.

No problem. I don't think it's currently in a mergeable state is all :)

No problem. I don't think it's currently in a mergeable state is all :)

In fact that patch is now obsolete, I have a new one, but it will probably be one of many until the true root cause is found. That investigation is in progress...

Metadata Update from @mreynolds:
- Custom field rhbz adjusted to https://bugzilla.redhat.com/show_bug.cgi?id=1518320

Metadata Update from @mreynolds:
- Issue set to the milestone: 1.3.6.0

The patch in ticket 49967 solves this! Closing this as a duplicate

Metadata Update from @mreynolds:
- Issue close_status updated to: duplicate
- Issue status updated to: Closed (was: Open)

389-ds-base is moving from Pagure to Github. This means that new issues and pull requests
will be accepted only in 389-ds-base's github repository.

This issue has been cloned to Github and is available here:
- https://github.com/389ds/389-ds-base/issues/2964

If you want to receive further updates on the issue, please navigate to the github issue
and click on subscribe button.

Thank you for understanding. We apologize for all inconvenience.

Metadata Update from @spichugi:
- Issue close_status updated to: wontfix (was: duplicate)
Metadata
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