linux-kernel - Re: [patch] suspend debugging: simulate suspend-to-RAM

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Message-Id: <200701252341.25514.rjw@sisk.pl>
Date:	Thu, 25 Jan 2007 23:41:24 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Matt Mackall <mpm@...enic.com>
Cc:	Andrey Borzenkov <arvidjaar@...l.ru>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org
Subject: Re: [patch] suspend debugging: simulate suspend-to-RAM

On Thursday, 25 January 2007 22:26, Matt Mackall wrote:
> On Thu, Jan 25, 2007 at 09:03:22PM +0300, Andrey Borzenkov wrote:
> > Ingo Molnar wrote:
> > > Make debugging such bugs easier by offering a resume mode that does not
> > > actually call into the BIOS to turn off the machine. This, in
> > > combination with earlyprintk=serial,ttyS0,115200,keep ,
> > > CONFIG_PM_DEBUG=y, CONFIG_DISABLE_CONSOLE_SUSPEND=y and
> > > /sys/power/filter enables me to have a fully functional serial console
> > > during the full suspend/resume cycle.
> > >
> > 
> > Will it work with netconsole too? COM port is often missing in notebooks
> > today.
> 
> Should, if you add your network device to the aforementioned filter.

Hm, what about the bus to which the device is connected?

Rafael


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