Re: BUG_ON(!PageLocked(page)) in munlock_vma_page/migrate_pages/__block_write_begin

Dmitry Vyukov
2015-12-17T12:53:57Z

On Tue, Dec 15, 2015 at 9:08 PM, Dmitry Vyukov <dvyukov@google.com> wrote:
> On Tue, Dec 15, 2015 at 8:42 PM, Johannes Weiner <hannes@cmpxchg.org> wrote:
>> Hi Dmitry,
>>
>> On Tue, Dec 15, 2015 at 08:23:34PM +0100, Dmitry Vyukov wrote:
>>>I am seeing lots of similar BUGs in different functions all pointing
>>> to BUG_ON(!PageLocked(page)). I reproduced them on several recent
>>> commits, including stock 6764e5ebd5c62236d082f9ae030674467d0b2779 (Dec
>>> 9) with no changes on top and no KASAN/etc.
>>
>> This should be fixed in newer kernels with this commit:
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd01f026058a59a513f8a365b439a0681b803af
>
> Testing with this patch now. Thanks!

It is not happening anymore. So we can consider this as fixed.