Messages in this thread | | | From | Vegard Nossum <> | Date | Tue, 6 Dec 2016 09:42:05 +0100 | Subject | Re: bio linked list corruption. |
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On 5 December 2016 at 22:33, Vegard Nossum <vegard.nossum@gmail.com> wrote: > On 5 December 2016 at 21:35, Linus Torvalds > <torvalds@linux-foundation.org> wrote: >> Note for Ingo and Peter: this patch has not been tested at all. But >> Vegard did test an earlier patch of mine that just verified that yes, >> the issue really was that wait queue entries remained on the wait >> queue head just as we were about to return and free it. > > The second patch has been running for 1h+ without any problems of any > kind. I should typically have seen 2 crashes by now. I'll let it run > overnight to be sure.
Alright, so nearly 12 hours later I don't see either the new warning or the original crash at all, so feel free to add:
Tested-by: Vegard Nossum <vegard.nossum@oracle.com>.
That said, my 8 VMs had all panicked in some way due to OOMs (which is new since v4.8), although some got page allocation stalls for >20s and died because "khugepaged blocked for more than 120 seconds", others got "Out of memory and no killable processes".
Vegard
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