On 08/05/2014 10:51 AM, Christoph Lameter wrote: > On Mon, 4 Aug 2014, Sasha Levin wrote: > >> On 07/25/2014 10:22 PM, Sasha Levin wrote: >>> On 07/10/2014 10:04 AM, Christoph Lameter wrote: >>>>> This patch creates a vmstat shepherd worker that monitors the >>>>> per cpu differentials on all processors. If there are differentials >>>>> on a processor then a vmstat worker local to the processors >>>>> with the differentials is created. That worker will then start >>>>> folding the diffs in regular intervals. Should the worker >>>>> find that there is no work to be done then it will make the shepherd >>>>> worker monitor the differentials again. >>> Hi Christoph, all, >>> >>> This patch doesn't interact well with my fuzzing setup. I'm seeing >>> the following: >> >> I think we got sidetracked here a bit, I've noticed that this issue >> is still happening in -next and discussions here died out. > > Ok I saw in another thread that this issue has gone away. Is there an > easy way to reproduce this on my system? > I don't see the VM_BUG_ON anymore, but the cpu warnings are still there. I can easily trigger it by cranking up the cpu hotplug code. Just try to frequently offline and online cpus, it should reproduce quickly. Thanks, Sasha -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>