On Wed, May 14, 2008 at 1:01 PM, Jean-Paul Calderone exarkun@divmod.com wrote:
Encountering this after the process has been running for a long time suggests a memory corruption issue to me. The fact that it happened only once while the process is still running and correctly servicing events further suggests that the corruption was somehow transient, a somewhat unusual occurance to say the least. :)
Just to bring a conclusion to this topic, the problem is actually bad memory.
On the same machine a Postfix daemon has just died, checking the logs: May 28 08:58:31 friends postfix/master[2933]: ess May 28 08:58:31 friends postfix/master[2933]: May 28 08:58:31 friends postfix/smtpd[6301]: connect from unknown[59.95.173.59] May 28 08:58:31 friends postfix/master[2933]: ess May 28 08:58:31 friends postfix/master[2933]: terminating on signal 11
From 'man 7 signal':
SIGSEGV 11 Core Invalid memory reference
A Dovecot daemon used to suddenly die on the same box too.
Regards,
Miguel