On Fri, Mar 29, 2013 at 9:17 AM, Dave Jones <da...@redhat.com> wrote: > > Now that I have that reverted, I'm not seeing msgrcv traces any more, but > I've started seeing this.. > > general protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
Do you have CONFIG_CHECKPOINT_RESTORE enabled? Does it go away if you disable it? I think I foud at least one bug in the MSG_COPY stuff: it leaks the "copy" allocation if mode == SEARCH_LESSEQUAL but maybe I'm misreading it. And that shouldn't cause the problem you see, but it's indicative of how badly tested and thought through the MSG_COPY code is. Totally UNTESTED leak fix appended. Stanislav? Linus
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