Andreas Metzler said at 28/02/2007 19:37:
On 2007-02-28 Ronny Adsetts <[EMAIL PROTECTED]> wrote:
Package: exim4
Version: 4.50-8sarge2
Severity: normal

I've recently, as of early this morning, started to see segfaults from
exim4. I'm seeing this in kern.log:

Feb 28 03:07:02 nakor kernel: exim4[4242]: segfault at 0000000000000000
rip 0000002a96bbb220 rsp 0000007fbfffed58 error 4
[...]

Are you running some special kernel? The regular vanilla Debian
kernels do not report SEGFAULTS of user level programs by syslog
afaik.

$ uname -a
Linux nakor 2.6.8-12-em64t-p4-smp #1 SMP Thu Dec 7 19:12:51 UTC 2006 x86_64 
GNU/Linux

This is the standard Sarge kernel. Well as standard as amd64 got for Sarge.

I might be misreading the message, with exim triggereing a segfault in
the kernel. Anyway if you did not make any recent changes to the
system software and I had to make guess I would point at either a
coruupted harddisk or hardware breakage.

I have a tcpdump of traffic that causes the segfault (attached) to this log 
entry:

Feb 28 19:08:41 nakor kernel: exim4[28068]: segfault at 0000000000000000 rip 
0000002a96bbb220 rsp 0000007fbfffd358 error 4

My first thought was hardware failure too, but it's not looking that way at the 
moment. The segfaults are too regular in their timing. I'll see if the same 
happens at 20:08.

Ronny
--
Ronny Adsetts
Technical Director
Amazing Internet Ltd, London
t: +44 20 8607 9535
f: +44 20 8607 9536
w: www.amazinginternet.com

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