From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with ESMTP id E44426B0044 for ; Fri, 18 Dec 2009 09:45:37 -0500 (EST) Received: from d06nrmr1407.portsmouth.uk.ibm.com (d06nrmr1407.portsmouth.uk.ibm.com [9.149.38.185]) by mtagate1.uk.ibm.com (8.13.1/8.13.1) with ESMTP id nBIEjY3T007382 for ; Fri, 18 Dec 2009 14:45:34 GMT Received: from d06av03.portsmouth.uk.ibm.com (d06av03.portsmouth.uk.ibm.com [9.149.37.213]) by d06nrmr1407.portsmouth.uk.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id nBIEjYCo663696 for ; Fri, 18 Dec 2009 14:45:34 GMT Received: from d06av03.portsmouth.uk.ibm.com (loopback [127.0.0.1]) by d06av03.portsmouth.uk.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id nBIEjYw6011176 for ; Fri, 18 Dec 2009 14:45:34 GMT Date: Fri, 18 Dec 2009 15:45:33 +0100 From: Heiko Carstens Subject: Re: [2.6.33-rc1] slab: possible recursive locking detected Message-ID: <20091218144533.GA19392@osiris.boeblingen.de.ibm.com> References: <20091218115843.GB7728@osiris.boeblingen.de.ibm.com> <1261141094.5014.11.camel@penberg-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1261141094.5014.11.camel@penberg-laptop> Sender: owner-linux-mm@kvack.org To: Pekka Enberg Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, paulmck@linux.vnet.ibm.com, a.p.zijlstra@chello.nl, cl@linux-foundation.org List-ID: On Fri, Dec 18, 2009 at 02:58:13PM +0200, Pekka Enberg wrote: > Hi Heiko, > > On Fri, 2009-12-18 at 12:58 +0100, Heiko Carstens wrote: > > Just got this with CONFIG_SLAB: > > > > ============================================= > > [ INFO: possible recursive locking detected ] > > 2.6.33-rc1-dirty #23 > > --------------------------------------------- > > events/5/20 is trying to acquire lock: > > (&(&parent->list_lock)->rlock){..-...}, at: [<00000000000ee898>] cache_flusharray+0x3c/0x12c > > > > but task is already holding lock: > > (&(&parent->list_lock)->rlock){..-...}, at: [<00000000000eee52>] drain_array+0x52/0x100 [...] > > Thanks for the report! Does reverting the following commit make the > warning go away? > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=ce79ddc8e2376a9a93c7d42daf89bfcbb9187e62 Yes, with that one reverted the warning is away. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org