linux-kernel - Re: kernel BUG in iwl-agn-rs.c:2076, WAS: iwlagn + some accesspoint == hardlock

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Message-Id: <201005111750.08533.borntraeger@de.ibm.com>
Date:	Tue, 11 May 2010 17:50:08 +0200
From:	Christian Borntraeger <borntraeger@...ibm.com>
To:	reinette chatre <reinette.chatre@...el.com>
Cc:	"John W. Linville" <linville@...driver.com>,
	"NilsRadtkelkml@...nk-future.de" <NilsRadtkelkml@...nk-future.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
Subject: Re: kernel BUG in iwl-agn-rs.c:2076, WAS: iwlagn + some accesspoint == hardlock

Am Donnerstag 06 Mai 2010 18:28:48 schrieb reinette chatre:
> Below seven iwlwifi patches were added after rc4. If you are unable to
> bisect ... perhaps you can run a while by reverting more and more from
> this list?
> 
> f2fa1b015e9c199e45c836c769d94db595150731 iwlwifi: correct 6000 EEPROM regulatory address
> 88be026490ed89c2ffead81a52531fbac5507e01 iwlwifi: fix scan races
> 8b9fce77737ae9983f61ec56cd53f52fb738b2c7 iwlwifi: work around bogus active chains detection
> ece6444c2fe80dab679beb5f0d58b091f1933b00 iwlwifi: need check for valid qos packet before free
> de0f60ea94e132c858caa64a44b2012e1e8580b0 iwlwifi: avoid Tx queue memory allocation in interface down
> 04f2dec1c3d375c4072613880f28f43b66524876 iwlwifi: use consistent table for tx data collect
> dd48744964296b5713032ea1d66eb9e3d990e287 iwlwifi: fix DMA allocation warnings

Just to give you some feedback. Sometimes it takes a while until it crashes.
My hand made bisect is currently at two remaining patches:

de0f60ea94e132c858caa64a44b2012e1e8580b0
8b9fce77737ae9983f61ec56cd53f52fb738b2c7

reverting both solves my hard lockup. I will try to isolate the "bad" patch
but this takes some more days since I wont be in the "hazardous environment"
this week.

Christian
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