linux-kernel - Re: 2.6.22.6 + rt9: suspend/hibernate not working

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Message-Id: <1189104143.10587.8.camel@cmn3.stanford.edu>
Date:	Thu, 06 Sep 2007 11:42:23 -0700
From:	Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU>
To:	Daniel Walker <dwalker@...sta.com>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	planetccrma@...ma.Stanford.EDU, Pavel Machek <pavel@....cz>
Subject: Re: 2.6.22.6 + rt9: suspend/hibernate not working

On Tue, 2007-09-04 at 17:15 -0700, Daniel Walker wrote:
> On Tue, 2007-09-04 at 17:12 -0700, Fernando Lopez-Lezcano wrote:
> > Hi Ingo... I'm getting reports from some of my Planet CCRMA users (which
> > I confirmed) that the latest rt kernel I released has broken suspend
> > (tested on fc6 & fc7, stock Fedora kernel works fine - the rt
> > configuration files are virtual clones as far as possible of the
> > standard Fedora kernel config files). 
> > 
> > I don't know where to start debugging this. When suspend is initiated it
> > freezes with a "Stopping tasks ... " message in the text console - a
> > hard power cycle is the only way to get the machine back to normal. 
> > 
> > kernel/power/process.c seems to contain that string in the
> > freeze_processes function so it looks like the freezer is not freezing
> > tasks as no "done" message is ever printed. 
> > 
> > What could we do to help?
> 
> If you have high resolution timers enabled you could try disabling it,
> and see if the problem persists .

The problem is still there ("Stopping tasks ... " and nothing
afterwards). 

I'm attaching the configuration with which the kernel was built. 
-- Fernando


View attachment "config-2.6.22.6-1.rt9.4.fc7.ccrmart" of type "text/plain" (77398 bytes)