Messages in this thread | | | Date | Wed, 11 May 2016 15:16:33 -0400 | From | Keith Busch <> | Subject | Re: [PATH v2] NVMe: init nvme queue before enabling irq |
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On Wed, May 11, 2016 at 11:25:16AM +0200, Johannes Thumshirn wrote: > What ever happened to this patch? > I can easily reproduce the bug using > while [ true ]; do rmmod nvme nvme_core; modprobe nvme; done
This patch was supposed to fix using a doorbell between resets when the driver had BAR0 unmapped. We don't ever unmap the bar anymore, so this patch shouldn't be necessary: the doorbell is already set during queue allocation before requset_irq.
The test doesn't seem like this patch would help either. It sounds more like you're hitting somethine else if you don't have this fix:
https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git/commit/?h=for-linus&id=9bf2b972afeaffd173fe2ce211ebc555ea7e8a87
If you do have that fix already, I'd like to see the panic stack trace (assuming that's what happened).
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