On Tue, 19 May 2020 22:29:59 -0400, Gabriel Krisman Bertazi wrote:
> iscsi suffers from a deadlock in case a management command submitted via
> the netlink socket sleeps on an allocation while holding the
> rx_queue_mutex, if that allocation causes a memory reclaim that
> writebacks to a failed iscsi device. Then, the recovery procedure can
> never make progress to recover the failed disk or abort outstanding IO
> operations to complete the reclaim (since rx_queue_mutex is locked),
> thus locking the system.
>
> [...]
Applied to 5.8/scsi-queue, thanks!
[1/1] scsi: iscsi: Fix deadlock on recovery path during GFP_IO reclaim
https://git.kernel.org/mkp/scsi/c/7e7cd796f277
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Martin K. Petersen Oracle Linux Engineering
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