linux-kernel - Re: [Regression] Negative time on Acer Ferrari One with current -git

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Date:	Sat, 22 May 2010 16:18:09 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	John Stultz <johnstul@...ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [Regression] Negative time on Acer Ferrari One with current
 -git

On Sat, 22 May 2010, Thomas Gleixner wrote:
> On Fri, 21 May 2010, Linus Torvalds wrote:
> > On Fri, 21 May 2010, Rafael J. Wysocki wrote:
> > > 
> > > Trying to boot current -git on Acer Ferrari One (64-bit), I get mount errors
> > > for all filesystems telling me that "now = (null) is in the future" and when
> > > run 'date' it says: "date: time <long negative number> is out of range".
> > > 
> > > Any ideas anyone?
> > 
> > No ideas, but apart from the obvious "maybe you can pin it down a bit with 
> > a few bisection compiles", it's almost certainly through the timer tree 
> > merge from Thomas, which included various wall-clock-time changes from 
> > John Stultz & co.
> > 
> > I don't see anything else that would likely affect any wall-clock time, 
> > but who knows..
> > 
> > John, Thomas? Ring any bells?
> 
> Went through the pile and nothing stands out.
> 
> The system has an AMD X2 with the jinxed C1E, so I'd rather suspect
> that we managed to break C1E again.
> 
> Just tried to boot -git on my X2 machine and it does not come
> up. Investigating.

Second boot worked, I love heisenbugs. :(

Rafael, can you check whether the C1E idle is selected. Also which
clocksource is used ?

Thanks,

	tglx
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