On Mon, Jun 9, 2014 at 3:53 PM, Ming Lei <tom.leim...@gmail.com> > > After pulling from your tree, the problem still persists. > > I test nvme over qemu, and both linus/next tree can > work well with qemu nvme.
One problem I found is that rq->start_time isn't set after you cleared IO_STAT intentionally, then the request can't be requeued any more. Once the request can be requeued, the problem becomes req hanging. The root cause is that device returns NVME_INTERNAL_DEV_ERROR(0x6) with your conversion patch. Thanks, -- Ming Lei -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/