On Thu, May 04, 2006 at 12:22:01PM +0100, Gavin Hamill wrote: > Hi, our 8.1.3 system on quad Xeon has been happily chugging away for > weeks with no stability problems until yesterday: > > /var/log/syslog:May 4 11:57:17 cayenne kernel: postmaster[19291]: > segfault at 0000000000000000 rip 00002aaaab5e8c00 rsp 00007fffffffd418 > error 4 <snip> > I don't know what the rip + rsp values represent, but is it interesting > that they are identical in all three cases? At a guess rip = return instruction pointer, rsp = return stack point. The fact that they're all the same seems to rule out hardware. > I'm using Debian sarge with the 8.1.3 debs from backports.org which I > trust; I doubt running postmaster under gdb will be workable due to the > performance penalty. I didn't think attaching gds had much effect on performance, but you may be right. <snip other usual output on server crash> > How can I enable coredumps or something similarly useful for debugging > purposes? Before starting the server, run "ulimit -S -c unlimited" If done properly it should enable core dumps for the backend. Have a nice day, -- Martijn van Oosterhout <kleptog@xxxxxxxxx> http://svana.org/kleptog/ > From each according to his ability. To each according to his ability to litigate.
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