linux-kernel - Re: [3/5] 2.6.21-rc4: known regressions (v2)

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Message-ID: <20070326194643.GF16477@stusta.de>
Date:	Mon, 26 Mar 2007 21:46:43 +0200
From:	Adrian Bunk <bunk@...sta.de>
To:	Frederic Riss <frederic.riss@...il.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, pavel@...e.cz,
	Tino Keitel <tino.keitel@....de>
Subject: Re: [3/5] 2.6.21-rc4: known regressions (v2)

On Mon, Mar 26, 2007 at 09:39:29PM +0200, Frederic Riss wrote:
> 2007/3/26, Adrian Bunk <bunk@...sta.de>:
> >On Mon, Mar 26, 2007 at 08:53:20PM +0200, Frédéric Riss wrote:
> >
> >>... (In fact it hangs at the second suspend, but that's another ATA
> >> problem that I think has already been reported).
> >
> >This sounds like the MSI problem.
> >
> >Do you have CONFIG_PCI_MSI enabled?
> >If yes, does disabling it fix it?
> 
> Yes
> 
> >If yes, does CONFIG_PCI_MSI=y with the patch from [1] work?
> 
> Yes !

Thanks for your testing.

> Just to be 100% clear, the hang I was seeing at the second suspend is this 
> one:
> 
> Subject    : second suspend to disk in a row results in an oops  (libata?)
> References : http://lkml.org/lkml/2007/3/17/43
> Submitter  : Thomas Meyer <thomas@...3r.de>
> Status     : unknown
> 
> I'm not sure it was associated with the MSI issue yet.

That's what I was calling "the MSI problem".
Since my latest regression list actual cause and patch have been found.

> Thanks a lot,
> Fred
> 
> >[1] http://lkml.org/lkml/2007/3/24/136

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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