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SubjectRe: [block] 044f1daaaa kernel BUG at block/blk-mq.c:415!
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On 06/26/2017 09:53 PM, Fengguang Wu wrote:
> Greetings,
>
> Sorry the report is a bit late, this bug looks still active:
>

First I've heard about it!

> [ 36.037364] sector 2, nr/cnr 0/2
> [ 36.037367] bio ffff88001af84e80, biotail ffff88001af84e80, len 0
> [ 36.037367] bio ffff88001af84e80, biotail ffff88001af84e80, len 0
> [ 36.037424] ------------[ cut here ]------------
> [ 36.037424] ------------[ cut here ]------------
> [ 36.037428] kernel BUG at block/blk-mq.c:415!
> [ 36.037428] kernel BUG at block/blk-mq.c:415!
> [ 36.037433] invalid opcode: 0000 [#1] PREEMPT SMP
> [ 36.037433] invalid opcode: 0000 [#1] PREEMPT SMP
> [ 36.037434] Modules linked in:
> [ 36.037434] Modules linked in:

Do you have the full dmesg of this? I looked at the one attached to the
bug report, but that's a completely different bug (NULL deref in drm).
Are you sure it's still the above blk-mq BUG() we're hitting?

--
Jens Axboe

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