linux-kernel - Re: [Bug 15289] Regression 2.6.32 -> 2.6.33, Kernel needs a helping key to boot :)

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Message-Id: <201003012103.00609.rjw@sisk.pl>
Date:	Mon, 1 Mar 2010 21:03:00 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	bugzilla-daemon@...zilla.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>
Subject: Re: [Bug 15289] Regression 2.6.32 -> 2.6.33, Kernel needs a helping key to boot :)

[Swithing to e-mail, please keep bugzilla-daemon in the CC list.]

On Monday 01 March 2010, bugzilla-daemon@...zilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=15289
> 
> --- Comment #30 from Asbjørn Sannes <kernelbugzilla@...nes.org>  2010-03-01 06:17:06 ---
> hm, so from what I have gathered the previously bisected commit only exposes
> another bug (hidden by enabling hpet). So I started bisecting again, this time
> with hpet=disabled all the way and found:
> 
> commit aa276e1cafb3ce9d01d1e837bcd67e92616013ac
> Author: Thomas Gleixner <tglx@...utronix.de>
> Date:   Mon Jun 9 19:15:00 2008 +0200
> 
> x86, clockevents: add C1E aware idle function
> 
> Reverting this from a non-working 2.6.27 makes it work also. Things have
> changed considerably since then so I was not able to revert it from the newest
> kernel.
> 
> Maybe that disabling of SBX00 hpet msi, only should be done when you do
> actually have floppy support? Makes more people boot atleast :P

Thomas, it looks like something's missing in our C1E handling.  Can you have
a look at this bug report, please?

Rafael
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