linux-kernel - Re: Regression in gdm-2.18 since 2.6.24

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Message-ID: <20080408112149.GA4326@localhost.ift.unesp.br>
Date:	Tue, 8 Apr 2008 08:21:50 -0300
From:	"Carlos R. Mafra" <crmafra2@...il.com>
To:	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
Cc:	Ken Moffat <zarniwhoop@...world.com>, Ingo Molnar <mingo@...e.hu>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	lkml <linux-kernel@...r.kernel.org>, a.p.zijlstra@...llo.nl,
	aneesh.kumar@...ux.vnet.ibm.com, dhaval@...ux.vnet.ibm.com,
	Balbir Singh <balbir@...ibm.com>, skumar@...ux.vnet.ibm.com
Subject: Re: Regression in gdm-2.18 since 2.6.24

On Tue  8.Apr'08 at 14:20:27 +0530, Srivatsa Vaddagiri wrote:
> On Mon, Apr 07, 2008 at 12:48:33AM +0100, Ken Moffat wrote:
> >  Well, I found your analysis convincing.  Unfortunately, my hardware
> > disagreed.  Testing -rc8 with CONFIG_GROUP_SCHED disabled (a test is
> > a mixture of 5 attempts to restart and 5 to shutdown):
> > 
> > 1. the base version success is 4/10
> > 
> > 2. increasing the granularity by a factor of 10 as you requested,
> > success is 8/10
> 
> This makes me think that we are just exposing a timing related problem
> in gdm here.

I can see the same issue in my desktop with kdm, but I've never had
the energy to bisect or look further into it, so I just type halt or
reboot in xterm :-(

But the fact is that a few days ago I tried rebooting through kdm button,
but it left me with a console login screen (and no reboot).

It also happened a few times before too (and I am always using a 
uptodated 2.6.25-rcX kernel).

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