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). -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html