On Thu, 2017-01-12 at 04:16 -0600, Elizabeth Myers wrote: > When restarting the OpenLDAP server, nslcd often crashes on multiple > servers with the following messages logged (I know they're not > helpful but it's what I have at the moment): > > nslcd[14819]: segfault at 0 ip 00007fdc51502ce4 sp 00007fdc4e553fe0 > error 4 in libsasl2.so.2.0.25[7fdc514fb000+1a000] > traps: nslcd[10619] general protection ip:7f0977bd322b > sp:7f0974465bb0 > error:0 in libc-2.24.so[7f0977b5c000+195000]
Can you install the following packages and try to reproduce the crash: libc6-dbg libgnutls30-dbgsym libgssapi-perl-dbgsym libkrb5-dbg libldap-2.4-2-dbg libsasl2-2-dbgsym libsasl2-modules-db-dbgsym libsasl2-modules-dbgsym (for installing the -dbgsym packages you probably need to add another repo to APT, see https://wiki.debian.org/AutomaticDebugPackages) If you could run nslcd under gdb and trigger the crash: # gdb /usr/sbin/nslcd ... (gdb) r -d ... try to force the crash ... (gdb) thread apply all bt full Alternatively sometimes valgrind provides very useful crash information. Judging by the backtrace the crash is in libsasl2 which is used by libldap so I expect the bug to be in one of those packages but we probably need more information. Thanks, -- -- arthur - [email protected] - https://people.debian.org/~adejong --
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