Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752033Ab1DNUYz (ORCPT ); Thu, 14 Apr 2011 16:24:55 -0400 Received: from mail.skyhub.de ([78.46.96.112]:45496 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751365Ab1DNUYx (ORCPT ); Thu, 14 Apr 2011 16:24:53 -0400 Date: Thu, 14 Apr 2011 22:24:45 +0200 From: Borislav Petkov To: Jens Axboe Cc: Linus Torvalds , Linux Kernel Mailing List Subject: Re: Linux 2.6.39-rc3 Message-ID: <20110414202445.GA6173@liondog.tnic> Mail-Followup-To: Borislav Petkov , Jens Axboe , Linus Torvalds , Linux Kernel Mailing List References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2884 Lines: 55 On Mon, Apr 11, 2011 at 05:40:11PM -0700, Linus Torvalds wrote: > It's been another almost spookily calm week. Usually this kind of > calmness happens much later in the -rc series (during -rc7 or -rc8, > say), but I'm not going to complain. I'm just still waiting for the > other shoe to drop. Yep, I had to hit a buglet too. Looks like block layer, ->request_fn (do_ide_request) called in IRQ disabled region. Process is blkid, i.e. some udev helper. Kernel is -rc3 + Joerg's USB quirk fix which should be unrelated. Happens when I put a cd in the drive. More info upon request. [20933.365059] BUG: sleeping function called from invalid context at drivers/ide/ide-io.c:468 [20933.365113] in_atomic(): 1, irqs_disabled(): 0, pid: 5817, name: blkid [20933.365166] no locks held by blkid/5817. [20933.365193] Pid: 5817, comm: blkid Not tainted 2.6.39-rc3-00001-g1b521ee #9 [20933.365228] Call Trace: [20933.365282] [] __might_sleep+0x103/0x108 [20933.365312] [] do_ide_request+0x4a/0x58e [20933.365362] [] ? cfq_prio_tree_add+0xb3/0xc2 [20933.365390] [] ? cfq_add_rq_rb+0xb1/0xc5 [20933.365437] [] ? cfq_insert_request+0x72/0x433 [20933.365465] [] __blk_run_queue+0x80/0xee [20933.365511] [] flush_plug_list+0xfb/0x139 [20933.365540] [] ? sleep_on_page+0x12/0x12 [20933.365586] [] __blk_flush_plug+0x1a/0x3a [20933.365613] [] schedule+0x3d2/0xb4b [20933.365663] [] ? trace_hardirqs_on_thunk+0x3a/0x3f [20933.365692] [] ? do_softirq+0x77/0x85 [20933.365739] [] ? retint_restore_args+0xe/0xe [20933.365767] [] ? sleep_on_page+0x12/0x12 [20933.365812] [] preempt_schedule+0x37/0x4b [20933.365839] [] _raw_spin_unlock_irqrestore+0x64/0x69 [20933.365878] [] prepare_to_wait_exclusive+0x6c/0x77 [20933.365925] [] __wait_on_bit_lock+0x34/0x8f [20933.365953] [] __lock_page_killable+0x66/0x6d [20933.366000] [] ? autoremove_wake_function+0x3d/0x3d [20933.366090] [] generic_file_aio_read+0x491/0x67c [20933.366123] [] do_sync_read+0xcb/0x108 [20933.366183] [] ? trace_hardirqs_on+0xd/0xf [20933.366217] [] vfs_read+0xb3/0x13b [20933.366270] [] sys_read+0x4d/0x77 [20933.366303] [] system_call_fastpath+0x16/0x1b Thanks. -- Regards/Gruss, Boris. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/