Re: [PATCH 0/4] iscsi target: Fix oops during relogin

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On 02/27/2017 04:03 AM, Mike Christie wrote:
> The following patches fix a oops that occurs when the initiator
> is trying to relogin to a iscsi target. The problem occurs, when
> the initiator has sent a command that is stuck running on some
> backend, and the initiator has sent TMFs and eventually escalated
> to session level recovery.
> 
> During the relogin operation, the target will wait for the stuck
> command to complete, and the initiator may time out the relogin
> request and drop that tcp connection and retry. The target will
> then free the iscsi connection structs from under the np_thread
> and we will crash.
> 
> Patches were made over the target-pending for-next branch.
> 
Thank you for doing this.
We have seen exactly this issue in some of our installations,
but never gotten around to fix this properly.

Cheers,

Hannes

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