From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762210AbYDSQnN (ORCPT ); Sat, 19 Apr 2008 12:43:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762028AbYDSQmn (ORCPT ); Sat, 19 Apr 2008 12:42:43 -0400 Received: from fg-out-1718.google.com ([72.14.220.152]:63016 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754856AbYDSQmj (ORCPT ); Sat, 19 Apr 2008 12:42:39 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding:sender; b=GGLMmqKNW9wmyJuIM8MHgFjey0LrpkY5DaDTwu3WWUCTFdaaXHXvT2WsRx2sQG6JTh5o0Hw4x8SqqhjA9SVSTSwjMNOeangzNavEnWn2wY/nwOrUakj7HLKOj647J9ZRTtey5e37XkW0ARneUUbHuIRGnCFn/T3chEoNMvCmOmg= Message-ID: <480A20F8.6020802@tuffmail.co.uk> Date: Sat, 19 Apr 2008 17:42:32 +0100 From: Alan Jenkins User-Agent: Thunderbird 2.0.0.12 (X11/20080227) MIME-Version: 1.0 To: Pavel Machek CC: linux-kernel@vger.kernel.org Subject: Re: RFC: Self-snapshotting in Linux References: <20080416111237.GA32432@atrey.karlin.mff.cuni.cz> <48060436.6030707@tuffmail.co.uk> <20080417093235.GB7314@elf.ucw.cz> In-Reply-To: <20080417093235.GB7314@elf.ucw.cz> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Pavel Machek wrote: > On Wed 2008-04-16 14:50:46, Alan Jenkins wrote: > >> Pavel Machek wrote: >> >>>> I guess there is the hardware / drivers issue. I would like to claim >>>> I've found hibernation to be reliable but unfortunately that's not >>>> 100% true. >>>> >>>> >>> So debug it, it is open source after all. Or at least file a bugs. >>> >>> >> I definitely want to debug it; I love hibernating. It's a regression and >> it'll affect my distro kernel once I upgrade to Ubuntu Hardy. >> >> "Backtraces during >> hibernate / resume". >> >> I posted the backtraces but nobody could tell me what they were - they >> don't actually say whether they're OOPs or BUGs etc. They might be >> softlockups - some times I got softlockup warnings, though thats not in the >> log I posted. >> > > Not sure what that is, I never seen that before. > > Can you try vanilla 2.6.25-rc9 or something? > I've just retested with 2.6.25. I reproduced the hang that happens after (otherwise successful) hibernation. After a second hibernation & resume I reproduced the mysterious call-traces. I posted this information, a full system log (including 2 hibernation cycles and the calltraces), and the kernel config to the bugzilla entry. This was in response to Rafael's request on the bugzilla. So I expect someone will look at it anyway, but I thought I should copy you on this. Thanks, Alan