Ming, > On Wed, Nov 28, 2018 at 11:08:48AM +0100, Christoph Hellwig wrote: >> On Wed, Nov 28, 2018 at 06:07:01PM +0800, Ming Lei wrote: >> > > Is this the nvme target on top of null_blk? >> > >> > Yes. >> >> And it goes away if you revert just the last patch? > > Today I run this test again and can't reproduce it any more. > > So maybe not a new issue, and it is just triggered in yesterday's > for-4.21/block, :-) Can you reproduce with yesterday's tree then? I'm obviously a bit concerned about merging something without knowing the cause of the problems you were seeing. -- Martin K. Petersen Oracle Linux Engineering