linux-kernel - mmotm 2010-07-19 - e1000e vs. pm_qos_update

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Message-ID: <6182.1279658125@localhost>
Date:	Tue, 20 Jul 2010 16:35:25 -0400
From:	Valdis.Kletnieks@...edu
To:	akpm@...ux-foundation.org, Thomas Gleixner <tglx@...utronix.de>,
	"David S. Miller" <davem@...emloft.net>
Cc:	linux-kernel@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	netdev@...r.kernel.org
Subject: mmotm 2010-07-19 - e1000e vs. pm_qos_update_request issues

On Mon, 19 Jul 2010 16:38:09 PDT, akpm@...ux-foundation.org said:
> The mm-of-the-moment snapshot 2010-07-19-16-37 has been uploaded to
> 
>    http://userweb.kernel.org/~akpm/mmotm/

Throws a warning at boot:

[    1.786060] WARNING: at kernel/pm_qos_params.c:264 pm_qos_update_request+0x28/0x54()
[    1.786088] Hardware name: Latitude E6500
[    1.787045] pm_qos_update_request() called for unknown object
[    1.787966] Modules linked in:
[    1.788940] Pid: 1, comm: swapper Not tainted 2.6.35-rc5-mmotm0719 #1
[    1.790035] Call Trace:
[    1.791121]  [<ffffffff81037335>] warn_slowpath_common+0x80/0x98
[    1.792205]  [<ffffffff810373e1>] warn_slowpath_fmt+0x41/0x43
[    1.793279]  [<ffffffff81057c14>] pm_qos_update_request+0x28/0x54
[    1.794347]  [<ffffffff8134889e>] e1000_configure+0x421/0x459
[    1.795393]  [<ffffffff8134afbd>] e1000_open+0xbd/0x37c
[    1.796436]  [<ffffffff8105743a>] ? raw_notifier_call_chain+0xf/0x11
[    1.797491]  [<ffffffff8145f948>] __dev_open+0xae/0xe2
[    1.798547]  [<ffffffff8145f997>] dev_open+0x1b/0x49
[    1.799612]  [<ffffffff8146e36e>] netpoll_setup+0x84/0x259
[    1.800685]  [<ffffffff81b5037c>] init_netconsole+0xbc/0x21f
[    1.801744]  [<ffffffff81b5026c>] ? sir_wq_init+0x0/0x35
[    1.802793]  [<ffffffff81b502c0>] ? init_netconsole+0x0/0x21f
[    1.803845]  [<ffffffff810002ff>] do_one_initcall+0x7a/0x12f
[    1.804885]  [<ffffffff81b2ccae>] kernel_init+0x138/0x1c2
[    1.805915]  [<ffffffff81003554>] kernel_thread_helper+0x4/0x10
[    1.806937]  [<ffffffff81590e00>] ? restore_args+0x0/0x30
[    1.807955]  [<ffffffff81b2cb76>] ? kernel_init+0x0/0x1c2
[    1.808958]  [<ffffffff81003550>] ? kernel_thread_helper+0x0/0x10
[    1.809958] ---[ end trace 84b562a00a60539e ]---

Looks like a repeat of something I reported against -mmotm 2010-05-11, though a
WARNING rather than an outright crash - the traceback is pretty much identical.
 I have *no* idea why -rc3-mmotm0701 doesn't whinge similarly.


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