linux-kernel - Re: [BISECTED][REGRESSION] Hang while booting EeePC 900

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Message-ID: <20180402202951.GE388343@devbig577.frc2.facebook.com>
Date:   Mon, 2 Apr 2018 13:29:51 -0700
From:   Tejun Heo <tj@...nel.org>
To:     Sitsofe Wheeler <sitsofe@...il.com>
Cc:     Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org,
        linux-block@...r.kernel.org,
        Stefan Haberland <sth@...ux.vnet.ibm.com>,
        Jan Hoeppner <hoeppner@...ux.vnet.ibm.com>,
        Bart Van Assche <Bart.VanAssche@....com>
Subject: Re: [BISECTED][REGRESSION] Hang while booting EeePC 900

Hello, Sitsofe.

Can you see whether the following patch makes any difference?

Thanks.

diff --git a/block/blk-timeout.c b/block/blk-timeout.c
index a05e367..f0e6e41 100644
--- a/block/blk-timeout.c
+++ b/block/blk-timeout.c
@@ -165,7 +165,7 @@ void blk_abort_request(struct request *req)
 		 * No need for fancy synchronizations.
 		 */
 		blk_rq_set_deadline(req, jiffies);
-		mod_timer(&req->q->timeout, 0);
+		kblockd_schedule_work(&req->q->timeout_work);
 	} else {
 		if (blk_mark_rq_complete(req))
 			return;