Alan DeKok, 2010-04-16 12:05:
Often 'root' can't core dump, and programs that change uid can't core dump. It's hard to know what's going on with the OS.
ok, I digged deeper into this and made some tests: - no core dump with kill -11 - /proc/sys/fs/suid_dumpable is 0, set it to 1 and restart FR - kill -11 -> core dump, yeah! So it's probably a problem with the uid change disabling the process' dumpability (I found nothing in /proc/[pid]/* where I can see this. So we have now all machines running with /proc/sys/fs/suid_dumpable set to 1. Strange thing is, this should not be neccessary with the prctl(PR_SET_DUMPABLE, 1) in mainconfig.c:698. Anyway, I'm now looking forward for FR to crash :)
Any hints? doc/bugs. You'll need symbols to find out what's going on.
I know, and I have them (in the -dbg package), but they are useless without a core dump :) Maybe the info about /proc/sys/fs/suid_dumpable should be added to doc/bugs... Thanks for your input! Regards, J