linux-kernel - Re: rtlwifi: regression 39-rc5 (rtl8192ce)

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Message-ID: <4DBDBD3D.9060005@lwfinger.net>
Date:	Sun, 01 May 2011 15:06:21 -0500
From:	Larry Finger <Larry.Finger@...inger.net>
To:	Shawn Nock <nock@...ko.org>
CC:	linux-kernel@...r.kernel.org
Subject: Re: rtlwifi: regression 39-rc5 (rtl8192ce)

On 05/01/2011 12:59 PM, Shawn Nock wrote:
>
> During heavy network traffic (esp. flash video) I see the attached NULL
> pointer dereference in 2.6.39-rc5 on an IBM Thinkpad x120e. Immediately
> afterward a "scheduling while atomic" bug is reported and the system
> becomes unresponsive. I am unable to produce this problem in 2.6.38.4.
>
> See attached backtrace and dmesg. Please let me know what I can collect
> to make this problem easier to troubleshoot.

Could you also supply the instruction byte sequence for the oops? It is the 
"Code:" line of the dump.

I think you are using a 32-bit system. Is that correct?

Is there one URL that exposes this problem? If so, please sent that as well.

Bisection is not likely to be of much help with this problem. Between 2.6.38 and 
2.6.39, driver rtl8192cu was added. It shares a lot of code with rtl8192ce, thus 
an extensive reorganization took place.

Larry

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