linux-kernel - Re: iwlagn is getting very shaky

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Message-ID: <20111123015503.GC23203@gamma.logic.tuwien.ac.at>
Date:	Wed, 23 Nov 2011 10:55:03 +0900
From:	Norbert Preining <preining@...ic.at>
To:	Emmanuel Grumbach <egrumbach@...il.com>
Cc:	"Guy, Wey-Yi" <wey-yi.w.guy@...el.com>,
	David Rientjes <rientjes@...gle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"ipw3945-devel@...ts.sourceforge.net" 
	<ipw3945-devel@...ts.sourceforge.net>,
	"ilw@...ux.intel.com" <ilw@...ux.intel.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: iwlagn is getting very shaky

On Di, 22 Nov 2011, Emmanuel Grumbach wrote:
> This is completely broken. This log looks really bad. AGG are enabled
> and disabled right away, messing the queues completely.

I can easily reproduce that here, today after reboot I saw something more:
[   82.894328] iwlwifi 0000:06:00.0: U iwl_trans_tx_queue_set_status Deactivate 
AC/CMD Queue 11 on FIFO 0
[   83.072243] iwlwifi 0000:06:00.0: U iwl_trans_pcie_tx_agg_alloc HW queue is NOT empty: 85 packets in HW queue
[  288.039768] iwlwifi 0000:06:00.0: U iwl_trans_tx_queue_set_status Deactivate AC/CMD Queue 11 on FIFO 0
[  288.039884] wlan0: deauthenticating from 00:0a:79:eb:56:10 by local choice (reason=3)
[  288.040218] iwlwifi 0000:06:00.0: I iwl_stop_queue Stop hwq 2 ac 2 stop count 1. Queue is full
[  288.052312] iwlwifi 0000:06:00.0: I iwl_wake_queue Wake hwq 2 ac 2. Packets reclaimed
[  288.052542] iwlwifi 0000:06:00.0: I iwl_stop_queue Stop hwq 2 ac 2 stop count 1. Queue is full
[  288.064074] iwlwifi 0000:06:00.0: I iwl_wake_queue Wake hwq 2 ac 2. Packets reclaimed
[  288.064301] iwlwifi 0000:06:00.0: I iwl_stop_queue Stop hwq 2 ac 2 stop count 1. Queue is full
[  288.074618] iwlwifi 0000:06:00.0: I iwl_wake_queue Wake hwq 2 ac 2. Packets reclaimed

> Will send another patch later.

Thanks.

Norbert
------------------------------------------------------------------------
Norbert Preining            preining@...ist.ac.jp, logic.at, debian.org}
JAIST, Japan                                 TeX Live & Debian Developer
DSA: 0x09C5B094   fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
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