From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932499AbYDOVDc (ORCPT ); Tue, 15 Apr 2008 17:03:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752652AbYDOVDZ (ORCPT ); Tue, 15 Apr 2008 17:03:25 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:52129 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751378AbYDOVDY (ORCPT ); Tue, 15 Apr 2008 17:03:24 -0400 From: "Rafael J. Wysocki" To: Adrian Bunk Subject: Re: [Bug #10117] 2.6.25-current-git sometimes hangs on boot - dual-core Sony Vaio Date: Tue, 15 Apr 2008 23:03:44 +0200 User-Agent: KMail/1.9.6 (enterprise 20070904.708012) Cc: "Carlos R. Mafra" , Linux Kernel Mailing List , Soeren Sonnenburg , Venki Pallipadi References: <200804152233.39079.rjw@sisk.pl> <20080415204500.GD1677@cs181133002.pp.htv.fi> In-Reply-To: <20080415204500.GD1677@cs181133002.pp.htv.fi> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200804152303.45320.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday, 15 of April 2008, Adrian Bunk wrote: > On Tue, Apr 15, 2008 at 10:33:38PM +0200, Rafael J. Wysocki wrote: > > On Tuesday, 15 of April 2008, Carlos R. Mafra wrote: > > > On Sun 13.Apr'08 at 17:25:45 -0300, Carlos R. Mafra wrote: > > > > On Sun 13.Apr'08 at 20:56:41 +0200, Rafael J. Wysocki wrote: > > > > > This message has been generated automatically as a part of a report > > > > > of recent regressions. > > > > > > > > > > The following bug entry is on the current list of known regressions > > > > > from 2.6.24. Please verify if it still should be listed. > > > > > > > > > > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10117 > > > > > Subject : 2.6.25-current-git sometimes hangs on boot - dual-core Sony Vaio > > > > > Submitter : Soeren Sonnenburg > > > > > Date : 2008-02-23 18:55 (51 days old) > > > > > References : http://lkml.org/lkml/2008/2/23/263 > > > > > http://lkml.org/lkml/2008/4/4/41 > > > > > http://lkml.org/lkml/2008/4/9/69 > > > > > > > > Soeren said it no longer happens to him in http://lkml.org/lkml/2008/4/9/53 > > > > but unfortunately it still happens with me using -rc9. So I kidnapped his > > > > bugzilla report :-) > > > > > > > > In the bugzilla entry I said earlier today that "hpet=disable" apparently > > > > makes the problem go away (42 boots OK so far, whereas without this > > > > boot option it hangs ~90% using vga=6 and ~10% using vga=0x0364) > > > > > > > > I tried to bisect it, but sometimes in pre 2.6.25-rc1 kernels it takes > > > > 30 boots before the first hang to occur. So bisection is not reliable... > > > > > > > > If someone proposes a patch I will be glad to test it! > > > > > > > > PS: The similar bug in buzilla 10377 also appears to be "fixed" > > > > by using hpet=disable, see comment #17 in that bug. > > > > > > > > > From what Mark Lord said in his comments #33 to #35 in > > > http://bugzilla.kernel.org/show_bug.cgi?id=10117 > > > it appears that this is a much older regression, from april 2007. > > > > > > So this is a regression, but not from 2.6.24 (although somehow > > > it never hit me before). I don't know about the policy of closing > > > regressions that come from way before the previous kernel version, > > > if there is any. Then I will let you manage the bugzilla #10117 > > > as you see fit (but I will be "there" to hopefuly test any > > > proposed patches). > > > > I dropped the bug from the list of recent regressions, so it doesn't block > > bug #9832 any more. However, this still is a bug and regression, so the > > bugzilla entry remains open. > > Soerens original report was a 2.6.25 regression. > > And #10377 that was closed as a duplicate of #10117 was also reported as > a 2.6.25 regression. > > #10117 seems to suffer from the common disease of people hijacking an > existing bug, but Soeren's issue that was what was originally tracked in > #10117 is (or was) a 2.6.25 regression. Well, I'm really not 100% sure it was a regression from 2.6.24 and I'm not sure bug #10377 should have been marked as a duplicate. I made bug #10117 block bug #9832 again, but it would be nice to sort this out. Why do we think that the cause of bugs #10117 and #10377 is the same? Rafael