$ rmadison --arch=s390x linux-generic | grep eoan-proposed
linux-generic | 5.2.0.8.9 | eoan-proposed | s390x
$ git tag --contains 16222cfb96
Ubuntu-5.2.0-8.9
v5.2
$ git show 16222cfb96
commit 16222cfb96b02a4a3e38e52012f2a6304850c3c9
Author: Harald Freudenberger <[email protected]>
Date: Wed Apr 3 13:18:22 2019 +0200
s390/zcrypt: fix possible deadlock situation on ap queue remove
With commit 01396a374c3d ("s390/zcrypt: revisit ap device remove
procedure") the ap queue remove is now a two stage process. However,
a del_timer_sync() call may trigger the timer function which may
try to lock the very same spinlock as is held by the function
just initiating the del_timer_sync() call. This could end up in
a deadlock situation. Very unlikely but possible as you need to
remove an ap queue at the exact sime time when a timeout of a
request occurs.
Signed-off-by: Harald Freudenberger <[email protected]>
Reported-by: Pierre Morel <[email protected]>
Fixes: commit 01396a374c3d ("s390/zcrypt: revisit ap device remove
procedure")
Signed-off-by: Martin Schwidefsky <[email protected]>
With that changing status to Fix Committed.
** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Committed
** Changed in: ubuntu-z-systems
Status: Incomplete => Fix Committed
** Information type changed from Private to Public
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https://bugs.launchpad.net/bugs/1835554
Title:
[19.10 FEAT] Crypto AP DD: handle reconfiguration events
Status in Ubuntu on IBM z Systems:
Fix Committed
Status in linux package in Ubuntu:
Fix Committed
Bug description:
Handle concurrent additions or removals of AP facilities.
Available with kernel 5.1
Git Commit: 16222cfb96
To manage notifications about this bug go to:
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