Re: block: percpu ref (blkg_release) <= 0 (0) after switching to atomic

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On 12/18/18 8:27 PM, Ming Lei wrote:
> On Wed, Dec 19, 2018 at 11:25:21AM +0800, Ming Lei wrote:
>> Hi Jens and Dennis,
>>
>> The following warning can be triggered on for-4.21/block when running
>> xfstests generic/475(xfs), and it is introduced by recent Dennis's patches.
>>
>> test disk: virtio-blk
>> scratch: nvme-pci disk
> 
> oops, the test disk is virtio-scsi, and seems it isn't easy to trigger
> on virtio-blk.

I can reproduce this. Dennis is looking at it, we'll get this solved one
way or another tomorrow.

Thanks for reporting!

-- 
Jens Axboe




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