[Mimedefang] Frequent signal 11 crashes

Kayne Kruse kkruse at pointone.com
Thu Oct 9 10:44:45 EDT 2008

> I've tried the setup on a very solid production machine 
> (server-quality hardware, uptime over 100 days) with a 
> hardened Gentoo machine where the kernel is patched with 
> grsecurity and PaX and everything is compiled with a hardened 
> toolchain with PIC/PIE. The crashes happen very frequent 
> there (but not 100% reproducible), MIMEDefang rarely gets to 
> process two or three mail before dying with this message in the log:
> --
> mișu


Just my experience with 'stable' machines that suddenly start throwing sig 11's, check the power supply, or run memtest on the box.  I have all too often found that a dying power supply can fix these all too easily and is very often the first thing overlooked when your trying to troubleshoot these.  Believe me, I have had 3 boxes throw 11's and stopped doing so after replacing it tho mine were usually after some kind of system strain ( e.g. bootup fscks, high load or cpu intensive apps).

Good Luck,


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