From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 798FA7F50 for ; Tue, 11 Feb 2014 23:50:39 -0600 (CST) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4C1B08F8039 for ; Tue, 11 Feb 2014 21:50:39 -0800 (PST) Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Ffy7lHzJdSK2hkRB for ; Tue, 11 Feb 2014 21:50:38 -0800 (PST) Date: Wed, 12 Feb 2014 00:50:27 -0500 From: Dave Jones Subject: Re: 3.14-rc2 XFS backtrace because irqs_disabled. Message-ID: <20140212055027.GA28502@redhat.com> References: <20140211172707.GA1749@redhat.com> <20140211210841.GM13647@dastard> <52FA9ADA.9040803@sandeen.net> <20140212004403.GA17129@redhat.com> <20140212010941.GM18016@ZenIV.linux.org.uk> <20140212040358.GA25327@redhat.com> <20140212042215.GN18016@ZenIV.linux.org.uk> <20140212054043.GB13997@dastard> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20140212054043.GB13997@dastard> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: xfs-bounces@oss.sgi.com Sender: xfs-bounces@oss.sgi.com To: Dave Chinner Cc: Eric Sandeen , xfs@oss.sgi.com, Linus Torvalds , Al Viro , Linux Kernel On Wed, Feb 12, 2014 at 04:40:43PM +1100, Dave Chinner wrote: > None of the XFS code disables interrupts in that path, not does is > call outside XFS except to dispatch IO. The stack is pretty deep at > this point and I know that the standard (non stacked) IO stack can > consume >3kb of stack space when it gets down to having to do memory > reclaim during GFP_NOIO allocation at the lowest level of SCSI > drivers. Stack overruns typically show up with symptoms like we are > seeing. > .. > > Dave, before chasing ghosts, can you (like Eric originally asked) > turn on stack overrun detection? CONFIG_DEBUG_STACKOVERFLOW ? Already turned on. Dave _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs