On 9/7/22 07:58, Ming Lei wrote: > On Wed, Sep 07, 2022 at 02:40:57PM +0000, Chaitanya Kulkarni wrote: >> Hi all, >> >> On 9/7/22 01:38, Ming Lei wrote: >>> On Wed, Sep 07, 2022 at 09:33:24AM +0200, Christoph Hellwig wrote: >>>> On Thu, Sep 01, 2022 at 03:06:08PM +0800, Ming Lei wrote: >>>>> It is a bit hard to associate the above commit with reported issue. >>>> >>>> So the messages clearly are about something trying to open a device >>>> that went away at the block layer, but somehow does not get removed >>>> in time by udev (which seems to be a userspace bug in CoreOS). But >>>> even with that we really should not hang. >>> >>> The new device should be allocated from md_probe() via blk_request_module(), >>> and the underlying devices are virtio-blk from the fedora BZ2121791. >>> >>> [1] https://bugzilla.redhat.com/show_bug.cgi?id=2121791 >>> >>> Thanks, >>> Ming >>> >> >> It would be really helpful if mdraid experts can write blktests so it >> will get tested in the nightly builds along with other tests with >> different distros. > > Can't agree more, and Cc linux-raid and our raid guys. > along with linux-block, Shin'ichiro and me. -ck