Comment 9 for bug 884320

There was one bug which has been haunting kernels since 2.6.37 (as reports indicated) which can cause bad dereferences under high(er) load. The related bug number would be bug #854050. A patch was found and got somewhat stuck on its way upstream.
So the fix only went into our tree quite late and was not included in any kernel updates until now. The patch would be:

commit cc1f777ce7526f1fdc25cdf7b99ea75adc9764ce
Author: Konrad Rzeszutek Wilk <email address hidden>
Date: Fri Sep 23 17:02:29 2011 -0400

    UBUNTU: SAUCE: x86/paravirt: Partially revert "remove lazy mode in interrupts"

[The upstream commit will have a different commit message, though]