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From: syzbot <syzbot+fcc47ba2476570cbbeb0@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org
Subject: [syzbot] [PATCH] Test for 4652b8e4f3ff
Date: Tue, 07 Nov 2023 16:31:11 -0800	[thread overview]
Message-ID: <00000000000039bb8a0609993470@google.com> (raw)

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Subject: [PATCH] Test for 4652b8e4f3ff
Author: eadavis@qq.com

please test warning in blk_mq_start_request

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 4652b8e4f3ff


diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index 22a3cf7f32e2..397bdfad6d27 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -1724,6 +1724,8 @@ static blk_status_t null_queue_rq(struct blk_mq_hw_ctx *hctx,
 	cmd->fake_timeout = should_timeout_request(rq) ||
 		blk_should_fake_timeout(rq->q);
 
+	printk("%d, %s\n", READ_ONCE(rq->state), __func__);
+	WRITE_ONCE(rq->state, MQ_RQ_IDLE);
 	blk_mq_start_request(rq);
 
 	if (should_requeue_request(rq)) {


             reply	other threads:[~2023-11-08  0:31 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-08  0:31 syzbot [this message]
  -- strict thread matches above, loose matches on Subject: below --
2023-11-08  0:52 [syzbot] [block?] WARNING in blk_mq_start_request syzbot
2023-11-08  1:35 ` [syzbot] [PATCH] Test for 4652b8e4f3ff syzbot
2023-11-08  6:25 ` syzbot

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