From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Jike Song <albcamus@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: [BUG] 2.6.28 hates my RTC clock - with PM_TRACE set
Date: Mon, 5 Jan 2009 14:33:38 +0000 [thread overview]
Message-ID: <20090105143338.GA32337@srcf.ucam.org> (raw)
In-Reply-To: <df9815e70901050619v6c60e8d4w6868759bb3c36bdb@mail.gmail.com>
On Mon, Jan 05, 2009 at 10:19:22PM +0800, Jike Song wrote:
> As usually, it suspended to RAM successfully. But after I press the
> power button, it won't come back, giving me nothing but a black
> screen. So I hold the power button done for about 5 seconds, then the
> computer halted(it's only a hardware feature of the southbridge,
> right? ;-), silently, without any output on the always-black screen.
>
> So the PM_TRACE code was broken, right?
Why do you say that?
> After rebooting the computer, I found I was in the year 1988! And I
> do the suspend-hold_power_button-reboot once again, now it is 2040
> years A.D.
PM_TRACE uses the clock registers to store information about which
device the kernel was attempting to resume when it hung. It's expected
that your clock will be wrong afterwards.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2009-01-05 14:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-05 14:19 [BUG] 2.6.28 hates my RTC clock - with PM_TRACE set Jike Song
2009-01-05 14:33 ` Matthew Garrett [this message]
2009-01-05 14:40 ` Jike Song
2009-01-05 14:59 ` Matthew Garrett
2009-01-05 15:47 ` Frans Pop
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