linux-kernel - Re: [regression] CD-ROM polling blocks suspend on some machines (Re: [PATCH 1/2] cdrom: always check_disk

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Message-ID: <87y5y37o7h.fsf@servo.factory.finestructure.net>
Date:	Sun, 04 Sep 2011 18:49:38 -0700
From:	Jameson Graef Rollins <jrollins@...estructure.net>
To:	Tejun Heo <tj@...nel.org>, Jonathan Nieder <jrnieder@...il.com>
Cc:	Jens Axboe <axboe@...nel.dk>, Amit Shah <amit.shah@...hat.com>,
	David Zeuthen <zeuthen@...il.com>,
	Martin Pitt <martin.pitt@...ntu.com>,
	Kay Sievers <kay.sievers@...y.org>,
	linux-kernel@...r.kernel.org, Jean Schurger <jean@...urger.org>,
	Jan Lübbe <jluebbe@...ian.org>,
	Matthijs Kooijman <matthijs@...in.nl>,
	Nacho Barrientos Arias <nacho@...ian.org>
Subject: Re: [regression] CD-ROM polling blocks suspend on some machines (Re: [PATCH 1/2] cdrom: always check_disk_change() on open)

On Sun, 4 Sep 2011 11:42:44 +0900, Tejun Heo <tj@...nel.org> wrote:
> Can you please build vanilla kernel with CONFIG_FRAME_POINTER turned
> on, reproduce the problem and attach full dmesg output?

Hi, Tejun.  I recompiled the kernel from the Debian linux-source-3.0.0
(following the instructions here [0]) with the following config:

CONFIG_FRAME_POINTER=y

I then rebooted into this new kernel and triggered the bug.  Attached is
the dmesg output from right before and right after the bug was
triggered.  The bug was triggered by ejecting my laptop from it's dock,
and then trying to put it to sleep (which of course it failed to do).

Please let me know if there's anything else I can do, or any other
information I can provide.  Thanks so much for the help.

jamie.

[0] http://kernel-handbook.alioth.debian.org/ch-common-tasks.html#s-common-building

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