From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Chinner Subject: Re: [PATCH] fsfreeze: tell hung_task about processes put to sleep Date: Sat, 13 Oct 2012 12:06:13 +1100 Message-ID: <20121013010613.GP2739@dastard> References: <1350035252.6500.2.camel@nexus.lab.ntt.co.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Al Viro , Ingo Molnar , Jan Kara , linux-fsdevel@vger.kernel.org To: Fernando Luis =?iso-8859-1?Q?V=E1zquez?= Cao Return-path: Received: from ipmail07.adl2.internode.on.net ([150.101.137.131]:45437 "EHLO ipmail07.adl2.internode.on.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752865Ab2JMBGQ (ORCPT ); Fri, 12 Oct 2012 21:06:16 -0400 Content-Disposition: inline In-Reply-To: <1350035252.6500.2.camel@nexus.lab.ntt.co.jp> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Fri, Oct 12, 2012 at 06:47:32PM +0900, Fernando Luis V=E1zquez Cao w= rote: > Any process attempting to write to a frozen filesystem uninterruptibl= y and > unkillably waits for the filesystem to be thawed. This wait is of unb= ounded > length. Ignore such waits in the hung_task detector. =46ilesystems should not be frozen for long enough to trigger the hung task detector under normal usage. IMO, if you are freezing a filesystem for that long, then you're either doing something wrong or something has gone wrong, and in either case I think we should be emitting warnings... Cheers, Dave. --=20 Dave Chinner david@fromorbit.com -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html