Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758293AbYAPHJm (ORCPT ); Wed, 16 Jan 2008 02:09:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752072AbYAPHJd (ORCPT ); Wed, 16 Jan 2008 02:09:33 -0500 Received: from wa-out-1112.google.com ([209.85.146.180]:22874 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752076AbYAPHJc (ORCPT ); Wed, 16 Jan 2008 02:09:32 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=N5UIipwzLvLZ2uernS7GST5aHcKdEaGRxUhmW3M3T/MVgZixBtrNztJspKGiiil8Y1JlQt6kRTEnEbhItYsIs2AYI3lBbBPptx/oOmIhTMLh0tAAGsFe63o74HiCEXJCROylppZ+/yOBbur65FqQpGUg5lMIsnoxQCSmNhjdzxo= Message-ID: Date: Wed, 16 Jan 2008 00:09:31 -0700 From: "Dan Williams" To: "dean gaudet" Subject: Re: [PATCH 001 of 6] md: Fix an occasional deadlock in raid5 Cc: "Andrew Morton" , NeilBrown , linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080114123726.19968.patches@notabene> <1080114014525.20337@suse.de> <20080115215425.b1fcba31.akpm@linux-foundation.org> X-Google-Sender-Auth: cf028bc427517752 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 870 Lines: 25 > heheh. > > it's really easy to reproduce the hang without the patch -- i could > hang the box in under 20 min on 2.6.22+ w/XFS and raid5 on 7x750GB. > i'll try with ext3... Dan's experiences suggest it won't happen with ext3 > (or is even more rare), which would explain why this has is overall a > rare problem. > Hmmm... how rare? http://marc.info/?l=linux-kernel&m=119461747005776&w=2 There is nothing specific that prevents other filesystems from hitting it, perhaps XFS is just better at submitting large i/o's. -stable should get some kind of treatment. I'll take altered performance over a hung system. -- Dan -- 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/