linux-kernel - Re: microcode driver newly spews warnings

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Message-ID: <20090416230731.GA19553@elte.hu>
Date:	Fri, 17 Apr 2009 01:07:31 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Dmitry Adamushko <dmitry.adamushko@...il.com>
Cc:	Jeff Garzik <jeff@...zik.org>, Peter Oruba <peter.oruba@....com>,
	amd64-microcode@...64.org,
	Andreas Herrmann <andreas.herrmann3@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: microcode driver newly spews warnings


* Dmitry Adamushko <dmitry.adamushko@...il.com> wrote:

> 2009/4/15 Jeff Garzik <jeff@...zik.org>:
> > Ingo Molnar wrote:
> >>
> >> (added Cc:s)
> >>
> >> * Jeff Garzik <jeff@...zik.org> wrote:
> >>
> >>> Jeff Garzik wrote:
> >>>>
> >>>> Kernel: 2.6.30-rc1-00306-g8371f87
> >>>> Hardware: ICH10 x86-64
> >>>>
> >>>> This is a regression from 2.6.29.  Microcode spews the following WARNING
> >>>> multiple times during boot:
> >>>>
> >>>>> ------------[ cut here ]------------
> >>>>> WARNING: at fs/sysfs/group.c:138 sysfs_remove_group+0xeb/0xf0()
> >>>>> Hardware name:         sysfs group ffffffffa0209700 not found for
> >>>>>  kobject 'cpu0'
> >
> >
> > Update:  Regression occurs in 2.6.30-rc2.
> >
> > I've now reproduced this on ICH9/Core2 as well as ICH10/Nahelem.
> 
> Hi,
> 
> 
> the following patch should eliminate the problem (and revert to 
> the old behavior that was altered by Rusty's patch).

Jeff, did this do the trick for you?

	Ingo
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