linux-kernel - Re: [3/3] 2.6.21-rc7: known regressions (v2)

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Message-ID: <b6a2187b0704250645t62a0d8u20f1f43df6feaea@mail.gmail.com>
Date:	Wed, 25 Apr 2007 21:45:44 +0800
From:	"Jeff Chua" <jeff.chua.linux@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Adrian Bunk" <bunk@...sta.de>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Guilherme Schroeder" <guilherme@...tralinf.com.br>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"John Stultz" <johnstul@...ibm.com>,
	"Mikael Pettersson" <mikpe@...uu.se>, ak@...e.de,
	discuss@...-64.org, pavel@...e.cz,
	linux-pm@...ts.linux-foundation.org,
	"Dave Jones" <davej@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Antonino A. Daplas" <adaplas@...il.com>,
	"James Simmons" <jsimmons@...radead.org>, gregkh@...e.de,
	linux-pci@...ey.karlin.mff.cuni.cz,
	"Tobias Diedrich" <ranma+kernel@...edrich.de>,
	"Dmitry Torokhov" <dtor@...ightbb.com>,
	"Jeremy Fitzhardinge" <jeremy@...p.org>
Subject: Re: [3/3] 2.6.21-rc7: known regressions (v2)

On 4/25/07, Ingo Molnar <mingo@...e.hu> wrote:
>
> * Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> > > Subject    : suspend to disk hangs  (CONFIG_NO_HZ)
> > > References : http://lkml.org/lkml/2007/3/25/217
> > > Submitter  : Jeff Chua <jeff.chua.linux@...il.com>
> > > Status     : unknown
> >
> > That's still rather a lot of bustage from the timekeeping changes.  Is
> > anything really happening here or have we all given up?
>
> Jeff: does that suspend-to-disk hang problem also happen if you use
> hpet=disable?

Yes, it is still broken with HPET disabled.

I've reported that if I press some keys, suspend will complete
successfully, otherwise, it'll just hang before the "percentage" comes
on.

Thanks,
Jeff.
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