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SubjectRe: 3.15.0-rc6: VM_BUG_ON_PAGE(PageTail(page), page)
On 05/23/2014 05:16 AM, Kirill A. Shutemov wrote:
> On Fri, May 23, 2014 at 12:21:47AM -0400, Sasha Levin wrote:
>> On 05/22/2014 09:58 AM, Dave Jones wrote:
>>> Not sure if Sasha has already reported this on -next (It's getting hard
>>> to keep track of all the VM bugs he's been finding), but I hit this overnight
>>> on .15-rc6. First time I've seen this one.
>>
>> Unfortunately I had to disable transhuge/hugetlb in my testing .config since
>> the open issues in -next get hit pretty often, and were unfixed for a while
>> now.
>
> What THP-related is not fixed by now? collapse hung? what else?

Besides the collapse hang, we have this: https://lkml.org/lkml/2013/3/29/103 .

I know it's not a "real" bug, but DEBUG_PAGEALLOC misbehaving, but it's
still something that makes testing difficult.


Thanks,
Sasha


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