linux-kernel - Re: mmotm 2010-05-11 - dies in pm_qos_update

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Message-Id: <201005122307.20860.rjw@sisk.pl>
Date:	Wed, 12 May 2010 23:07:20 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Valdis.Kletnieks@...edu
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	"David S. Miller" <davem@...emloft.net>,
	linux-kernel@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	netdev@...r.kernel.org
Subject: Re: mmotm 2010-05-11 - dies in pm_qos_update_request()

On Wednesday 12 May 2010, Valdis.Kletnieks@...edu wrote:
> On Tue, 11 May 2010 18:21:22 PDT, akpm@...ux-foundation.org said:
> > The mm-of-the-moment snapshot 2010-05-11-18-20 has been uploaded to
> > 
> >    http://userweb.kernel.org/~akpm/mmotm/
> 
> Dell Latitude E6500, x86_64 kernel.
> 
> Died a horrid death at boot in the e1000e driver.  Seems to be
> something in linux-next.patch. Didn't get a netconsole trace for obvious
> reasons...
> 
> Copied-by-hand traceback:
> pm_qos_update_request()+0x22
> e1000_configure+0x478
> e1000_open_device+0xee
> ? _raw_notifier_call_chain+0xf
> __dev_open+0xec
> dev_open+0x1b
> netpoll_setup+0x28b
> init_netconsole+0xbc
> 
> I suspect this commit:
> 
> commit 23606cf5d1192c2b17912cb2ef6e62f9b11de133
> Author: Rafael J. Wysocki <rjw@...k.pl>
> Date:   Sun Mar 14 14:35:17 2010 +0000
> 
>     e1000e / PCI / PM: Add basic runtime PM support (rev. 4)

No, I don't think so.  I'm running -rc6 with this patch applied on a box with
e1000e and it works just fine.

Please try to revert this one instead:

http://git.kernel.org/?p=linux/kernel/git/rafael/suspend-2.6.git;a=patch;h=ed77134bfccf5e75b6cbadab268e559dbe6a4ebb

Rafael
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