linux-kernel - Re: [Bug #13306] hibernate slow on _second

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Message-Id: <1244071197.27194.39.camel@pasglop>
Date:	Thu, 04 Jun 2009 09:19:57 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Johannes Berg <johannes@...solutions.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Jan Scholz <scholz@...s.uni-frankfurt.de>
Subject: Re: [Bug #13306] hibernate slow on _second_ run

On Thu, 2009-06-04 at 01:00 +0200, Rafael J. Wysocki wrote:
> 
> > I'll try to tackle the trackpad problem.
> 
> Perhaps the VIA-PMU interrupt shouldn't be disabled in
> suspend_device_irqs()?

Possibly, but then we did use to have all interrupts disabled
at some stage before going to suspend_late anyway no ? So it shouldn't
make a big difference.

The VIA interrupt must not be HW masked in the PIC on some machines
because it's the wakeup source, so we may have to force re-enable it
since it can be lazy-disabled, but those aren't the machines with the
trackpad problem so I think I'll need to have a closer look at what's
going on and get my head around it.

Haven't had a chance yet, hopefully today or tomorrow.

Ben.

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