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+?
