Quoting Doug White <dwhite_at_gumbysoft.com>: > hey folks, > > Looks like the OpenLDAP server, slapd, and KSE don't get along too well. I may have missed the end of this thread, if I did I apologize. Is the above still an issue? Thanks, ed > > I can reliably segfault slapd by doing a few requests of it on a -CURRENT > machine built this morning PST. TLS seems to accelerate things, but it > can be done without. I have this backtrace, with a debugging libpthread, > but I'm not sure how useful it is to you folks. > > This is 100% reproducible, although initially it was croaking in > pthread_testcancel() instead of a kse function. This leads me to suspect > strange mutex corruption, but I'd like someone who understands kse to at > least spot-check. > > I thought at first it might be some strange interaction between berkeley > db 4.2's special assembly mutexes and kse, but I rebuilt db42 with pthread > mutexes and rebuilt openldap to use DB_PRIVATE so the db would mount, but > no change in status. > > Here's the trace from gdb: > > #0 0x284374a7 in kse_release () at {standard input}:15 > #1 0x28431fed in kse_wait (kse=0x8102000, td_wait=0x0, sigseqno=0) > at /usr/src/lib/libpthread/thread/thr_kern.c:1816 > #2 0x28430485 in kse_sched_multi (kmbx=0x0) > at /usr/src/lib/libpthread/thread/thr_kern.c:1011 > #3 0x28434014 in _i386_enter_uts () at {standard input}:25 > #4 0x2842fa4e in _thr_sched_switch (curthread=0x8260000) > at /usr/src/lib/libpthread/thread/thr_kern.c:596 > #5 0x2842c905 in mutex_lock_common (curthread=0x8260000, m=0x810e304, > abstime=0x0) at /usr/src/lib/libpthread/thread/thr_mutex.c:555 > #6 0x2842d633 in __pthread_mutex_lock (m=0x810e304) > at /usr/src/lib/libpthread/thread/thr_mutex.c:796 > #7 0x2839634f in pthread_mutex_lock () from /lib/libc.so.5 > #8 0x281288b3 in ldap_pvt_thread_mutex_lock () > from /usr/local/lib/libldap_r.so.202 > #9 0x28127b23 in ldap_pvt_thread_pool_submit () > from /usr/local/lib/libldap_r.so.202 > #10 0x08059d23 in ldap_str2matchingrule () > #11 0x080599d5 in ldap_str2matchingrule () > #12 0x08059525 in ldap_str2matchingrule () > #13 0x08056fe5 in ldap_str2matchingrule () > #14 0x28425595 in thread_start (curthread=0x8260000, > start_routine=0x8055a4c <ldap_str2matchingrule+34120>, arg=0x0) > at /usr/src/lib/libpthread/thread/thr_create.c:353 > #15 0x283e4807 in _ctx_start () from /lib/libc.so.5 > > > -- > Doug White | FreeBSD: The Power to Serve > dwhite_at_gumbysoft.com | www.FreeBSD.org > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"Received on Sun Feb 22 2004 - 18:40:14 UTC
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