On 5 December 2016 at 22:33, Vegard Nossum <vegard.nos...@gmail.com> wrote: > On 5 December 2016 at 21:35, Linus Torvalds > <torva...@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.nos...@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 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html