From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760395Ab1IKVgo (ORCPT ); Sun, 11 Sep 2011 17:36:44 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:59910 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755257Ab1IKVgk (ORCPT ); Sun, 11 Sep 2011 17:36:40 -0400 Date: Mon, 12 Sep 2011 00:36:35 +0300 From: Alexey Dobriyan To: axboe@kernel.dk, jbottomley@parallels.com, torvalds@linux-foundation.org, akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org Subject: 3.1.0-rc4: oops at elv_put_request() Message-ID: <20110911213634.GA3065@p183.telecom.by> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Caught this one, there was no real load at the moment. FWIW, setup is ext4 over RAID-6 across 4 disks. elv_put_request __blk_put_request blk_put_request scsi_execute scsi_execute_req scsi_test_unit_ready sd_check_events disk_events_workfn process_one_work worker_thread kthread kernel_thread_helper $ addr2line -e vmlinux 0xffffffff811bcbbb block/elevator.c:772 768 void elv_put_request(struct request_queue *q, struct request *rq) 769 { 770 struct elevator_queue *e = q->elevator; 771 772 ===> if (e->ops->elevator_put_req_fn) <=== 773 e->ops->elevator_put_req_fn(rq); 774 }