linux-kernel - Re: [BUG] New Kernel Bugs

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Message-ID: <alpine.LFD.0.9999.0711132345480.3265@localhost.localdomain>
Date:	Tue, 13 Nov 2007 23:46:19 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Mark Lord <liml@....ca>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Natalie Protasevich <protasnb@...il.com>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	alsa-devel@...a-project.org, linux-ide@...r.kernel.org,
	linux-pcmcia@...ts.infradead.org,
	linux-input@...ey.karlin.mff.cuni.cz,
	bugme-daemon@...zilla.kernel.org
Subject: Re: [BUG] New Kernel Bugs

On Tue, 13 Nov 2007, Mark Lord wrote:

> Thomas Gleixner wrote:
> > On Tue, 13 Nov 2007, Mark Lord wrote:
> > 
> > > > Andrew Morton wrote:
> > > > > > On Mon, 12 Nov 2007 22:42:32 -0800 "Natalie Protasevich"
> > > > > > <protasnb@...il.com> wrote:
> > > > ..
> > > > > > > > with CONFIG_NO_HZ and/or CONFIG_HPET_TIMER set kernel 2.6.23
> > > > > doesn't
> > > > > > > > boot (ARM, Timer)
> > > > > > > > http://bugzilla.kernel.org/show_bug.cgi?id=9229
> > > > > > > > Kernel: 2.6.23
> > > > > > > > No response from developers
> > > > ..
> > 
> > The bug report is bogus. ARM has no CONFIG_HPET_TIMER.  
> > > > Note:  that same bug exists/existed on i386 back when NO_HZ was
> > > > introduced (2.6.21?).  I still see it from time to time on my Quad core
> > > > system (very rare), but not any more on my Duo notebook where it used
> > > > to happen about 1 in n boots (n < 10).
> > > > > AFAICT no fix was ever released for it.
> > 
> > Hmm, at which point does the boot stop ? 
> ..
> 
> Just as it prints out these messages, sometimes one of them,
> sometimes both (or all four on the quad core):
> 
> kernel: switched to high resolution mode on cpu 1
> kernel: switched to high resolution mode on cpu 0 

It's completely dead afterwards ?

     tglx
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