On Thu, Nov 29, 2018 at 3:09 AM NeilBrown <neilb@xxxxxxxx> wrote: > > On Wed, Nov 28 2018, Ed Spiridonov wrote: > > > Also I uploaded dmesg output with CONFIG_LOCKDEP=y > > > > All the dmesgs (except the raid10) show the same basic problem which I > suspect the md_wakeup_thread() will fix. I just updated the bug: freezing could be reproduced without RAID at all. Do you think that your patch could be useful anyway?