On Wed, Sep 13, 2017 at 05:28:24PM +0000, Bart Van Assche wrote: > On Thu, 2017-09-14 at 00:48 +0800, Ming Lei wrote: > > Could you please let me know if your concern about race between > > preempt freeze and blk_cleanup_queue() is addressed in my last > > reply? > > Shouldn't we wait until v4.13-rc1 has been released before spending more > energy on this? Certain patches that have been sent to Linus, e.g. commit The discussion should have been done any time, right? I believe I replied all your comments, if you don't agree any one of my follow-up, please point it out. > 157f377beb71 ("block: directly insert blk-mq request from > blk_insert_cloned_request()"), may affect the test results. I have not No, that patch only changes blk_insert_cloned_request() which is used by dm-rq(mpath) only, nothing to do with the reported issue during suspend and sending SCSI Domain validation. -- Ming