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From: Larry Finger <Larry.Finger@lwfinger.net>
To: Arend van Spriel <arend@broadcom.com>
Cc: Johannes Berg <johannes@sipsolutions.net>,
	"John W. Linville" <linville@tuxdriver.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: Re: REGRESSION: crash in wireless-testing smoketest
Date: Wed, 08 Feb 2012 09:37:28 -0600	[thread overview]
Message-ID: <4F3296B8.2050007@lwfinger.net> (raw)
In-Reply-To: <4F327C30.8060802@broadcom.com>

On 02/08/2012 07:44 AM, Arend van Spriel wrote:
> On 02/08/2012 02:02 PM, Johannes Berg wrote:
>>> I rerun the test on a kernel with some more lock checking and got lucky.
>>>
>>> Feb  8 08:40:17 lb-bun-10 kernel: [  514.512283] wlan0: authenticate
>>> with 98:fc:11:8e:94:57
>>> Feb  8 08:40:17 lb-bun-10 kernel: [  514.512515] wlan0: send auth to
>>> 98:fc:11:8e:94:57 (try 1/3)
>>> Feb  8 08:40:17 lb-bun-10 kernel: [  514.514184] BUG: unable to handle
>>> kernel NULL pointer dereference at 00000004
>>
>> ...
>>
>>> Apparently, minstrel_ht expects some tx_status field filled in by
>>> brcmsmac/mac80211. Have not found the problem yet.
>>
>> So the patch you sent fixes this? Just making sure it's not a different
>> thing.
>>
>> johannes
>>
>
> Yes. I should probably have referred to this thread.

I have also seen the same crash in minstrel_tx_status, but it showed up in the 
middle of revising p54usb to use asynchronous firmware loading, and I thought I 
had some kind of subtle timing problem in the initialization. I certainly will 
test the patch and report back.

Larry


      reply	other threads:[~2012-02-08 15:37 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-07 14:41 REGRESSION: crash in wireless-testing smoketest Arend van Spriel
2012-02-07 14:59 ` Johannes Berg
2012-02-07 17:25   ` Arend van Spriel
2012-02-07 20:32     ` Johannes Berg
2012-02-08 10:02       ` Arend van Spriel
2012-02-08 13:02         ` Johannes Berg
2012-02-08 13:44           ` Arend van Spriel
2012-02-08 15:37             ` Larry Finger [this message]

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