From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: johnohagan <mail@johnohagan.com>
Cc: linux-rt-users@vger.kernel.org, Jonathan Nieder <jrnieder@gmail.com>
Subject: Re: 3.0.0-1-rt-amd64: Suspend hangs
Date: Thu, 29 Sep 2011 21:31:18 +0200 [thread overview]
Message-ID: <20110929193118.GJ6949@pengutronix.de> (raw)
In-Reply-To: <20110930010128.ede515e66ed1a331ad625a2a@johnohagan.com>
On Fri, Sep 30, 2011 at 01:01:28AM +1000, johnohagan wrote:
> Running Debian testing on an HP Mini 5102 with non-RT kernel, suspend
> to ram, suspend to disk and resume work as expected. With the RT
> kernels from both testing and Sid, attempting to suspend may result in
For the people not running Debian:
wheezy aka testing currently has 3.0.2 + 3.0.1-rt11
sid aka unstable currently has 3.0.4-rt14
> a lock-up, with a blank screen and high fan operation. Keyboard and
> Sysrq keys are unresponsive and a hard shutdown is necessary. This
> happens randomly AFAIKT, of the order of half the time, possibly more
> often if larger programs are running, but still occurs in single-user
> mode.
>
> I ran the tests using /sys/power/pm_test described here:
> https://raw.github.com/torvalds/linux/master/Documentation/power/basic-pm-debugging.txt
>
> The freeze occurs with pm_test set to "processors", but not with "platform".
>
> With "single no_console_suspend" on the kernel command-line and trying
> STD, the screen messages are normal up to the point of saving the
> image, and remain there after the freeze. For STR the screen is blank
> when the freeze happens.
>
> There is one tainted module on my system, brcmsmac, which I
> blacklisted for the testing.
>
> I've submitted this as Debian bug #643301, and am sending this summary
> here on the advice of Debian maintainers.
I asked for a kernel log on a serial console (don't know if that is
possible for John to provide). If you have other tips to debug that ...
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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next prev parent reply other threads:[~2011-09-29 19:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-29 15:01 3.0.0-1-rt-amd64: Suspend hangs johnohagan
2011-09-29 19:31 ` Uwe Kleine-König [this message]
2011-09-30 9:48 ` Jonathan Nieder
2011-10-03 19:14 ` Uwe Kleine-König
2011-10-05 15:01 ` johnohagan
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