On Fri, 2019-04-05 at 08:06 +0200, Christoph Hellwig wrote: > On Thu, Apr 04, 2019 at 10:08:43AM -0700, Bart Van Assche wrote: > > blk_mq_try_issue_directly() can return BLK_STS*_RESOURCE for > > requests that > > have been queued. If that happens when blk_mq_try_issue_directly() > > is called > > by the dm-mpath driver then dm-mpath will try to resubmit a request > > that is > > already queued and a kernel crash follows. Since it is nontrivial > > to fix > > blk_mq_request_issue_directly(), revert the > > blk_mq_request_issue_directly() > > changes that went into kernel v5.0. > > And what are we going to do about 5.1+? Hello Christoph All the testing of the reverts etc. was agains 5.1-rc3. I believe the intention is to revert for 5.1x+ and earlier. Regards Laurence