On Mon, 02 Nov 2026 21:37:40 +0800, Yunye Zhao wrote:
> init_vq() reads the writable num_request_queues and poll_queues module
> parameters both at probe and when recreating virtqueues after suspend
> or reset. However, virtio-blk does not update the blk-mq hardware queue
> count or queue maps on restore.
>
> Increasing poll_queues can therefore remove the completion callback
> from a virtqueue still used for interrupt-driven I/O, leaving requests
> uncompleted. Reducing the effective request queue count through
> num_request_queues can instead leave existing hardware contexts
> indexing beyond the reallocated vblk->vqs array.
>
> [...]
Applied, thanks!
[1/1] virtio_blk: freeze the virtqueue layout at probe time
commit: d53c1a12ff1cfdb12770ddcfdf5603915d0ba0d8
Best regards,
--
Jens Axboe
