linux-kernel - Re: Regression: ONE CPU fails bootup at Re: [3.2.0-RC7] BUG: unable to handle kernel NULL pointer dereference at 0000000000000598 1.478005] IP: [<ffffffff8107a6c4>] queue_work

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Message-ID: <20120106090314.2780d53a@notabene.brown>
Date:	Fri, 6 Jan 2012 09:03:14 +1100
From:	NeilBrown <neilb@...e.de>
To:	Stefan Bader <stefan.bader@...onical.com>
Cc:	John Stultz <john.stultz@...aro.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Sander Eikelenboom <linux@...elenboom.it>, rjw@...k.pl,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: Regression: ONE CPU fails bootup at Re: [3.2.0-RC7] BUG: unable
 to handle kernel NULL pointer dereference at 0000000000000598  1.478005]
 IP: [<ffffffff8107a6c4>] queue_work_on+0x4/0x30

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On Wed, 04 Jan 2012 16:12:02 +0100 Stefan Bader <stefan.bader@...onical.com>
wrote:


> Neil, this variation would also keep the kernel from crashing in my test
> environment. What do you think of that?

Hi Stefan,

That patch moves the call out of common code into device-specific code.
As my device doesn't have a 'cmos' rtc it wouldn't run at all for me.

I think we need to get __rtc_read_alarm() to return an error if the alarm time
is before the clock time.

Thanks,
NeilBrown

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