On 6/23/25 8:08 AM, Keith Busch wrote:

On Mon, Jun 23, 2025 at 07:10:21PM +0800, Fengnan Chang wrote:

quoted

Some io hang problems are caused by miss wakeup, and these cases could

Wait a second, what's the cause of the missed wakeup? I don't think that
should ever happen, so let's get the details on that first.

+1

Additionally, there is not enough information in the patch description
to conclude whether the root cause is in the block layer core or in an
(out-of-tree?) block driver.

Bart.