Re: [PATCH] NVMe: init nvme queue before enabling irq
From: Johannes Thumshirn
Date: Wed Jan 20 2016 - 05:22:51 EST
On Wed, Jan 20, 2016 at 11:56:01AM +0200, Sagi Grimberg wrote:
>
> >>If it can cause a kernel panic shouldn't it go through stable then as well?
> >
> >Sorry, not quite understand this comment.
> >The "reset process" is the nvme device reset process (performed by nvme_reset_work()) triggered by device fail condition.
> >During normal boot up, nvmeq door bell is initialized in nvme_alloc_queue() which happens before enabling irq, so there is no error.
> >During nvme device reset process, nvme_alloc_queue() is skipped and the race condition exists.
>
> I think what Johannes meant was that this patch should include a
> "CC: stable@xxxxxxxxxxxxxxx" tag.
>
Exactly. This makes work for us distribution people a lot easier (i.e. we do
not have to manually scan all commits and decide if we need to backport a
patch or not)
Thanks
> _______________________________________________
> Linux-nvme mailing list
> Linux-nvme@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/linux-nvme
--
Johannes Thumshirn Storage
jthumshirn@xxxxxxx +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850