[PATCH 1/1] nvme: fix nvme_remove going to uninterruptible sleep for ever

Rakesh Pandit rakesh at tuxera.com
Tue May 30 00:18:50 PDT 2017


On Mon, May 29, 2017 at 07:58:39PM +0200, Christoph Hellwig wrote:
> On Mon, May 29, 2017 at 09:29:54AM +0300, Rakesh Pandit wrote:
> > Once controller is in DEAD or DELETING state a call to delete_destroy
> > from nvme_uninit_ctrl results in setting the latency tolerance via
> > nvme_set_latency_tolerance callback even though queues have already
> > been killed.  This in turn leads the PID to go into uninterruptible
> > sleep and prevents removal of nvme controller from completion.  The
> > stack trace is:
...
> 
> What do you think about moving this into the beginning of
> nvme_configure_apst instead?  And please add a comment while you're
> at it.

Thanks, makes sense.  I have posted V2.



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