Hi,
在 2023/05/10 14:39, Ming Lei 写道:
On Wed, May 10, 2023 at 12:05:07PM +0800, Guangwu Zhang wrote:
HI,
after apply your patch[1], the system will panic after reboot.
This is werid, I just reporduce this problem in my VM, and I verified
this patch can fix the problem.
Anyway, Ming's patch looks better, you can try it.
Thanks,
Kuai
Maybe you can try the following patch?
diff --git a/block/blk-mq.c b/block/blk-mq.c
index f6dad0886a2f..d84174a7e997 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1303,7 +1303,7 @@ void blk_execute_rq_nowait(struct request *rq, bool at_head)
* device, directly accessing the plug instead of using blk_mq_plug()
* should not have any consequences.
*/
- if (current->plug && !at_head) {
+ if (current->plug && !at_head && rq->bio) {
blk_add_rq_to_plug(current->plug, rq);
return;
}
thanks,
Ming
.
