linux-kernel - Re: [BUG] 3.10 regression: hang on suspend

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Message-ID: <51E51712.4020609@broadcom.com>
Date:	Tue, 16 Jul 2013 11:49:06 +0200
From:	"Arend van Spriel" <arend@...adcom.com>
To:	Ortwin Glück <odi@....ch>
cc:	"Stanislaw Gruszka" <sgruszka@...hat.com>,
	linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: Re: [BUG] 3.10 regression: hang on suspend

On 07/16/2013 09:34 AM, Ortwin Glück wrote:
>
>
> On 16.07.2013 08:56, Stanislaw Gruszka wrote:
>> Apparently this commit changed suspend procedure on mac80211, but it's
>> not obvious for me why it hangs :-(
>
> Hangs are hard :-) It just sits there with a black screen and a white
> cursor in the top left corner...
>
>> What is your user space configuration (are you using NM or other
>> software or maybe just wpa_supplicant)? Are you using wowlan?
>> If you do add no_console_suspend boot parameter does it print some
>> diagnostic messages during suspend before the hang ?
>
> Yes, I am using NM under KDE, with KDE triggered suspend. No wowlan
> AFAIK. The last thing I see in the log is something from NetworkManager
> that sees the device switching off. I can try again tonight and give you
> the exact message.
>
> I will also try without NM and bare wpa_supplicant and a plain suspend
> through sysfs.
>
> Any debug options you want me to enable? Netconsole won't work however...

Can you get more debug info if you try (as root/sudo -i):

echo devices > /sys/power/pm_test
echo mem > /sys/power state

Regards,
Arend

> Ortwin
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