Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755389AbZANTQp (ORCPT ); Wed, 14 Jan 2009 14:16:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753548AbZANTQf (ORCPT ); Wed, 14 Jan 2009 14:16:35 -0500 Received: from mga02.intel.com ([134.134.136.20]:64024 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753473AbZANTQe (ORCPT ); Wed, 14 Jan 2009 14:16:34 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.37,263,1231142400"; d="scan'208";a="481673121" Date: Wed, 14 Jan 2009 11:16:32 -0800 From: "Pallipadi, Venkatesh" To: Theodore Tso , Arjan van de Ven , Andrew Morton , linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org, Peter Zijlstra , Ingo Molnar , Nick Piggin Subject: Re: kernel BUG at fs/ext/super.c:428 Message-ID: <20090114191632.GA13114@linux-os.sc.intel.com> References: <20090110003645.GA16107@linux-os.sc.intel.com> <20090113164842.c6aa7095.akpm@linux-foundation.org> <20090114014434.GE14730@mit.edu> <496D526D.1010402@linux.intel.com> <20090114044059.GA6222@mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090114044059.GA6222@mit.edu> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4310 Lines: 77 On Tue, Jan 13, 2009 at 08:40:59PM -0800, Theodore Tso wrote: > On Wed, Jan 14, 2009 at 02:48:13AM +0000, Arjan van de Ven wrote: > >> Well, Arjan's commit, efaee192: "async: make the final inode deletion > >> an asynchronous event", does change how inodes get deleted, and this > >> looks like a race where an inode is getting deleted during the umount. > >> > >> So I would try reverting commit efaee192 and see if it fixes things > >> before starting a full bisect... > > > > the commit is already reverted before rc1 > > > > Ah, right. I see, the async infrastructure is still in fs/super.c, > but the actual code to insert deleted inodes onto the s_async_list was > removed in commit b32714b. Sorry, that confused me. > > OK, so assuming that Venkatesh was using something post-rc1, I can't > suggest anything other than a full bisect. Sorry.... > Below is the result of full bisect 38d47c1b7075bd7ec3881141bb3629da58f88dab is first bad commit commit 38d47c1b7075bd7ec3881141bb3629da58f88dab Author: Peter Zijlstra Date: Fri Sep 26 19:32:20 2008 +0200 futex: rely on get_user_pages() for shared futexes On the way of getting rid of the mmap_sem requirement for shared futexes, start by relying on get_user_pages(). Signed-off-by: Peter Zijlstra Acked-by: Nick Piggin Signed-off-by: Ingo Molnar :040000 040000 029e79e0a7421438c2a7437dd210a1acf40b6c29 b581716762c1952c0f515fac642690514e7224b7 M include :040000 040000 5f604b60974dbb9b0ac1a0910234f28c43a5e691 10c576cabe7eae661501ec38861a0f7488d5353b M kernel -- git-bisect start # good: [4a6908a3a050aacc9c3a2f36b276b46c0629ad91] Linux 2.6.28 git-bisect good 4a6908a3a050aacc9c3a2f36b276b46c0629ad91 # bad: [c59765042f53a79a7a65585042ff463b69cb248c] Linux 2.6.29-rc1 git-bisect bad c59765042f53a79a7a65585042ff463b69cb248c # bad: [590cf28580c999c8ba70dc39b40bab09d69e2630] Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 git-bisect bad 590cf28580c999c8ba70dc39b40bab09d69e2630 # good: [0191b625ca5a46206d2fb862bb08f36f2fcb3b31] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 git-bisect good 0191b625ca5a46206d2fb862bb08f36f2fcb3b31 # good: [134179823b3ca9c8b98e0631906459dbb022ff9b] V4L/DVB (10130): use USB API functions rather than constants git-bisect good 134179823b3ca9c8b98e0631906459dbb022ff9b # good: [47992cbdaef2f18a47871b2ed01ad27f568c8b73] Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel git-bisect good 47992cbdaef2f18a47871b2ed01ad27f568c8b73 # bad: [6de71484cf9561edb45224f659a9db38b6056d5e] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6 git-bisect bad 6de71484cf9561edb45224f659a9db38b6056d5e # bad: [179475a3b46f86e2d06f83e2312218ac3f0cf3a7] Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip git-bisect bad 179475a3b46f86e2d06f83e2312218ac3f0cf3a7 # bad: [cc37d3d20604f3759d269247b022616f710aa52d] Merge branch 'core/futexes' into core/core git-bisect bad cc37d3d20604f3759d269247b022616f710aa52d # good: [7918baa555140989eeee1270f48533987d48fdba] mutex: __used is needed for function referenced only from inline asm git-bisect good 7918baa555140989eeee1270f48533987d48fdba # bad: [b19b3c74c7bbec45a848631b8f970ac110665a01] Merge branches 'core/debug', 'core/futexes', 'core/locking', 'core/rcu', 'core/signal', 'core/urgent' and 'core/xen' into core/core git-bisect bad b19b3c74c7bbec45a848631b8f970ac110665a01 # bad: [42569c39917a08e8de1e8b5685463be7b74baebd] futex: fixup get_futex_key() for private futexes git-bisect bad 42569c39917a08e8de1e8b5685463be7b74baebd # bad: [61270708ecf1cda148e84fbf6e0703ee5aa81814] futex: reduce mmap_sem usage git-bisect bad 61270708ecf1cda148e84fbf6e0703ee5aa81814 # bad: [38d47c1b7075bd7ec3881141bb3629da58f88dab] futex: rely on get_user_pages() for shared futexes git-bisect bad 38d47c1b7075bd7ec3881141bb3629da58f88dab --- -- 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/