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On Sun, Mar 28, 2010 at 16:27, Mike Williams <mike.williams@comodo.com> wrote:
> Test are para-virt VMs with "regular" kernels, production are real
> machines with hardened kernels (grsec+pax).

Ive seen this error on a few boxes around here, using a non grsec
kernel fixes it.  I never bothered to report it because I cant
reproduce it and it goes away without grsec.  (2.6.30-32 IIRC, have
not tired the latest 33).  Interestingly I have the *exact* same
hardware and setup (kernel/userspace/postgres etc) on a test machine
that I've never been able to trigger it on.