Hi,
I finally managed to identify the root cause of this issue and do have a
patch and a more detailed description of the issue attched to the kernel
bugtracker.
The attached patch is applicable to stable (5.10.92) and experimental
(5.17-rc4) kernels.
As I did not receive any response to the original upstream report, I
fear that this might be the same for the proposed patch as well.
Do you have any suggestions on what to do?
I would now follow up with a mail to the maintainers, the linux-block
list and the lkml but I don't know anything more I could try.
Regards,
Valentin
Index: linux-5.10.92/drivers/block/aoe/aoedev.c
===================================================================
--- linux-5.10.92.orig/drivers/block/aoe/aoedev.c
+++ linux-5.10.92/drivers/block/aoe/aoedev.c
@@ -198,6 +198,7 @@ aoedev_downdev(struct aoedev *d)
{
struct aoetgt *t, **tt, **te;
struct list_head *head, *pos, *nx;
+ struct request *rq;
int i;
d->flags &= ~DEVFL_UP;
@@ -225,11 +226,13 @@ aoedev_downdev(struct aoedev *d)
/* fast fail all pending I/O */
if (d->blkq) {
- /* UP is cleared, freeze+quiesce to insure all are errored */
- blk_mq_freeze_queue(d->blkq);
- blk_mq_quiesce_queue(d->blkq);
- blk_mq_unquiesce_queue(d->blkq);
- blk_mq_unfreeze_queue(d->blkq);
+ /* UP is cleared, error all requests without sleeping */
+ while ((rq = list_first_entry_or_null(&d->rq_list, struct request,
+ queuelist))) {
+ list_del_init(&rq->queuelist);
+ blk_mq_start_request(rq);
+ aoe_end_request(d, rq, 1);
+ }
}
if (d->gd)
