On Wed, Oct 06, 2010 at 12:15:36PM -0500, Vernon A. Fort wrote: > On Mon, 2010-10-04 at 17:30 -0400, Victor Duchovni wrote: > > On Mon, Oct 04, 2010 at 03:43:44PM -0500, Vernon A. Fort wrote: > > > > > I've noticed this: > > > > > > mail.log.1:Oct 3 03:32:43 ns postfix/master[3672]: warning: > > > process //usr/lib/postfix/postscreen pid 19122 killed by signal 11 > > > > > > and > > > > > > [457795.641083] postscreen[19122]: segfault at 1f ip 0804c463 sp > > > bfcf5e50 error 4 in postscreen[8048000+29000] > > > > Enable "core" file generation and report a backtrace. > > > > I have a core and backtrace file. I tar.gz but i keep getting message > 4000 chars. how do i get this info to the list?
We don't yet need the whole core file, just run: gdb /usr/sbin/postscreen /path/to/core ... copious output ... gdb) bt The "bt" command generates a back-trace (stack trace), that should show where the segfault occurred. Ideally, your postscreen is compiled with "-g" or "-g -O", i.e. with symbols and line numbers, ... -- Viktor.