linux-kernel - RE: [linux-usb-devel] [4/4] 2.6.23-rc3: known regressions

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Message-ID: <DFEF91B22ED07447AB6AA4B237F913F9B18F2A@ausx3mpc125.aus.amer.dell.com>
Date:	Wed, 22 Aug 2007 09:42:01 -0500
From:	<Stuart_Hayes@...l.com>
To:	<torvalds@...ux-foundation.org>, <david-b@...bell.net>
Cc:	<michal.k.k.piotrowski@...il.com>,
	<linux-usb-devel@...ts.sourceforge.net>, <gregkh@...e.de>,
	<linux-kernel@...r.kernel.org>, <akpm@...ux-foundation.org>,
	<dex@...gonslave.de>
Subject: RE: [linux-usb-devel] [4/4] 2.6.23-rc3: known regressions

Linus Torvalds wrote:
> On Tue, 21 Aug 2007, Linus Torvalds wrote:
>> 
>> Side note: after reverting 196705c9bb I can't get the mouse to skip
>> any more on that mac mini. But since the bad behaviour wasn't 100%
>> reliable to begin with, that's not really a guarantee of anything.
>> Two out of three kids are off on camp this week, so that machine
>> probably won't be getting a lot of testing ;/
> 
> Well, my one remaining child said today that "I got so much time on
> webkinz today - yesterday the mouse locked up after five minutes". 
> 
> Apparently it hadn't had the mouse lock up at all today.
> 
> So I really do believe that that 196705c9bb commit caused problems on
> intel-only USB machines too ("ondemand" cpufreq governor, switching
> between 1.0-1.66 Ghz using acpi-cpufreq: totally bog-standard in all
> respects, in other words).   
> 
> 		Linus

If you were running 2.6.26-rc3, that's quite possibly because you didn't
have the follow-up patch that fixed my original patch... it wasn't in
2.6.26-rc3
(http://www.mail-archive.com/linux-usb-devel@lists.sourceforge.net/msg56
523.html).  It fixed a bug with my patch that wasn't necessary with
Broadcom, but was with nVidia (and Intel, I believe).

That could definitely cause mouse lock-ups.  Sorry, that should have
occurred to me yesterday when you mentioned the problem your kids were
seeing, but it didn't for some reason.

Stuart
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