linux-kernel - Re: [linux-usb-devel] can't suspend on vaio sz (rc4 and rc5 are ok) [was Re: 2.6.22-rc4-mm2]

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Message-Id: <200706201612.10584.rjw@sisk.pl>
Date:	Wed, 20 Jun 2007 16:12:09 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Mattia Dongili <malattia@...ux.it>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org, linux-usb-devel@...ts.sourceforge.net
Subject: Re: [linux-usb-devel] can't suspend on vaio sz (rc4 and rc5 are ok) [was Re: 2.6.22-rc4-mm2]

On Wednesday, 20 June 2007 16:01, Alan Stern wrote:
> On Wed, 20 Jun 2007, Mattia Dongili wrote:
> 
> > On Wed, Jun 06, 2007 at 10:03:13PM -0700, Andrew Morton wrote:
> > > 
> > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.22-rc4/2.6.22-rc4-mm2/
> > 
> > Hello,
> > on this vaio sz72b I can't suspend if usb-storage is loaded. Bisecting
> > is becoming troublesome as different sets have slightly different
> > problems.
> > At one point (with the GREGKH usb stuff built) I had the kernel
> > reporting it cannot stop the usb-storage thread so I guess that
> > something later in the series made things worse (freezable workqueues?).
> > 
> > Clues?
> 
> The usb-storage thread is supposed to be unfreezable.  Recent changes 
> may have messed up the code that checks for which threads need to be 
> frozen and which don't.

I don't really think so, but well ...

That's why I asked Mattia to test the hibernation/suspend patches without
the rest of -mm.

Greetings,
Rafael


-- 
"Premature optimization is the root of all evil." - Donald Knuth
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