From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [linux-lvm] 2.6.22-rc4 XFS fails after hibernate/resume Date: Thu, 28 Jun 2007 17:27:34 +0200 Message-ID: <200706281727.35430.rjw@sisk.pl> References: <46744065.6060605@dgreaves.com> <20070618145007.GE85884050@sgi.com> <20070627204924.GA4777@ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20070627204924.GA4777@ucw.cz> Content-Disposition: inline Sender: linux-raid-owner@vger.kernel.org To: Pavel Machek Cc: David Chinner , David Greaves , David Robinson , LVM general discussion and development , "'linux-kernel@vger.kernel.org'" , xfs@oss.sgi.com, linux-pm , LinuxRaid List-Id: linux-pm@vger.kernel.org On Wednesday, 27 June 2007 22:49, Pavel Machek wrote: > Hi! > > > FWIW, I'm on record stating that "sync" is not sufficient to quiesce an XFS > > filesystem for a suspend/resume to work safely and have argued that the only > > Hmm, so XFS writes to disk even when its threads are frozen? > > > safe thing to do is freeze the filesystem before suspend and thaw it after > > resume. This is why I originally asked you to test that with the other problem > > Could you add that to the XFS threads if it is really required? They > do know that they are being frozen for suspend. Well, do you remember the workqueues? They are still nonfreezable. Greetings, Rafael -- "Premature optimization is the root of all evil." - Donald Knuth