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  1. Bug #1980951
  2. Comment #1

Comment 1 for bug 1980951

Revision history for this message
bugproxy (bugproxy) wrote : Comment bridged from LTC Bugzilla

------- Comment From <email address hidden> 2022-07-07 09:04 EDT-------
The bug occurs because the following upstream kernel commit is missing from the Ubuntu 22.04 kernel:

commit 0c3812c347bfb0dc213556a195e79850c55702f5
Author: Vineeth Vijayan <email address hidden>
Date: Fri Sep 17 15:04:01 2021 +0200

s390/cio: derive cdev information only for IO-subchannels
cdev->online for the purge function must not be checked for the
non-IO subchannel type. Make sure that we are deriving the cdev only
from sch-type SUBCHANNEL_TYPE_IO.
Signed-off-by: Vineeth Vijayan <email address hidden>
Reviewed-by: Peter Oberparleiter <email address hidden>
Signed-off-by: Vasily Gorbik <email address hidden>

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0c3812c347bfb0dc213556a195e79850c55702f5