On Mon, Aug 13, 2018 at 03:42:38PM +0800, shan.gavin@xxxxxxxxxxxxxxxxx wrote:The controller memory buffer is remapped into a kernel address on each reset, but the driver was setting the submission queue base address only on the very first queue creation. The remapped address is likely to change after a reset, so accessing the old address will hit a kernel bug. This patch fixes that by setting the queue's CMB base address each time the queue is created. Cherry-pick from upstream commit 815c6704bf9f ("nvme-pci: Remap CMB SQ entries on every controller reset") Fixes: f63572dff1421 ("nvme: unmap CMB and remove sysfs file in reset path") Reported-by: Christian Black <christian.d.black@xxxxxxxxx> Cc: Jon Derrick <jonathan.derrick@xxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> # 4.9+This one is already in 4.9-stable.
Sorry, Keith. I was intending to send to internal maillist, but sent to external one by accident. Please ignore it. Cheers, Gavin
