* Patch "blk-mq: Avoid that request queue removal can trigger list corruption" has been added to the 4.14-stable tree
@ 2017-12-12 10:11 gregkh
0 siblings, 0 replies; 2+ messages in thread
From: gregkh @ 2017-12-12 10:11 UTC (permalink / raw)
To: bart.vanassche, alexander.levin, axboe, gregkh, hare, hch,
jthumshirn
Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
blk-mq: Avoid that request queue removal can trigger list corruption
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
blk-mq-avoid-that-request-queue-removal-can-trigger-list-corruption.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Tue Dec 12 10:32:42 CET 2017
From: Bart Van Assche <bart.vanassche@wdc.com>
Date: Wed, 8 Nov 2017 10:23:45 -0800
Subject: blk-mq: Avoid that request queue removal can trigger list corruption
From: Bart Van Assche <bart.vanassche@wdc.com>
[ Upstream commit aba7afc5671c23beade64d10caf86e24a9105dab ]
Avoid that removal of a request queue sporadically triggers the
following warning:
list_del corruption. next->prev should be ffff8807d649b970, but was 6b6b6b6b6b6b6b6b
WARNING: CPU: 3 PID: 342 at lib/list_debug.c:56 __list_del_entry_valid+0x92/0xa0
Call Trace:
process_one_work+0x11b/0x660
worker_thread+0x3d/0x3b0
kthread+0x129/0x140
ret_from_fork+0x27/0x40
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
block/blk-core.c | 1 +
1 file changed, 1 insertion(+)
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -339,6 +339,7 @@ void blk_sync_queue(struct request_queue
struct blk_mq_hw_ctx *hctx;
int i;
+ cancel_delayed_work_sync(&q->requeue_work);
queue_for_each_hw_ctx(q, hctx, i)
cancel_delayed_work_sync(&hctx->run_work);
} else {
Patches currently in stable-queue which might be from bart.vanassche@wdc.com are
queue-4.14/blk-mq-avoid-that-request-queue-removal-can-trigger-list-corruption.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
* Patch "blk-mq: Avoid that request queue removal can trigger list corruption" has been added to the 4.14-stable tree
@ 2017-12-15 8:01 gregkh
0 siblings, 0 replies; 2+ messages in thread
From: gregkh @ 2017-12-15 8:01 UTC (permalink / raw)
To: bart.vanassche, alexander.levin, axboe, gregkh, hare, hch,
jthumshirn
Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
blk-mq: Avoid that request queue removal can trigger list corruption
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
blk-mq-avoid-that-request-queue-removal-can-trigger-list-corruption.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Tue Dec 12 10:32:42 CET 2017
From: Bart Van Assche <bart.vanassche@wdc.com>
Date: Wed, 8 Nov 2017 10:23:45 -0800
Subject: blk-mq: Avoid that request queue removal can trigger list corruption
From: Bart Van Assche <bart.vanassche@wdc.com>
[ Upstream commit aba7afc5671c23beade64d10caf86e24a9105dab ]
Avoid that removal of a request queue sporadically triggers the
following warning:
list_del corruption. next->prev should be ffff8807d649b970, but was 6b6b6b6b6b6b6b6b
WARNING: CPU: 3 PID: 342 at lib/list_debug.c:56 __list_del_entry_valid+0x92/0xa0
Call Trace:
process_one_work+0x11b/0x660
worker_thread+0x3d/0x3b0
kthread+0x129/0x140
ret_from_fork+0x27/0x40
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
block/blk-core.c | 1 +
1 file changed, 1 insertion(+)
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -339,6 +339,7 @@ void blk_sync_queue(struct request_queue
struct blk_mq_hw_ctx *hctx;
int i;
+ cancel_delayed_work_sync(&q->requeue_work);
queue_for_each_hw_ctx(q, hctx, i)
cancel_delayed_work_sync(&hctx->run_work);
} else {
Patches currently in stable-queue which might be from bart.vanassche@wdc.com are
queue-4.14/blk-mq-avoid-that-request-queue-removal-can-trigger-list-corruption.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-12-12 10:11 Patch "blk-mq: Avoid that request queue removal can trigger list corruption" has been added to the 4.14-stable tree gregkh
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