linux-kernel - Re: iwlagn warning in 2.6.29-rc6

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Message-Id: <1235429106.18617.42.camel@rc-desk>
Date:	Mon, 23 Feb 2009 14:45:06 -0800
From:	reinette chatre <reinette.chatre@...el.com>
To:	"Carlos R. Mafra" <crmafra2@...il.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
Subject: Re: iwlagn warning in 2.6.29-rc6

On Mon, 2009-02-23 at 13:26 -0800, Carlos R. Mafra wrote:
> I've just got this warning in my Vaio laptop:
> 
> ------------[ cut here ]------------
> WARNING: at drivers/net/wireless/iwlwifi/iwl-tx.c:1254 iwl_tx_cmd_complete+0x28a/0x2e0()
> Hardware name: VGN-FZ240E
> wrong command queue 31, sequence 0x7FFF readp=241 writep=241
> Modules linked in: usbhid nvram snd_hda_codec_idt snd_hda_intel snd_hda_codec uvcvideo snd_hwdep snd_pcm iwlagn videodev snd_timer sky2 v4l1_compat v4l2_compat_ioctl32 evdev sg i2c_i801 snd_page_alloc sr_mod ata_piix ahci libata sd_mod scsi_mod uhci_hcd ohci_hcd ehci_hcd usbcore [last unloaded: scsi_wait_scan]
> Pid: 0, comm: swapper Not tainted 2.6.29-rc6 #37
> Call Trace:
>  <IRQ>  [<ffffffff8023d850>] warn_slowpath+0xd0/0x130
>  [<ffffffff8025072d>] ? queue_work_on+0x4d/0x60
>  [<ffffffff802508da>] ? queue_work+0x1a/0x20
>  [<ffffffff8053bb70>] ? ieee80211_sta_rx_mgmt+0xc0/0xf0
>  [<ffffffff80540f45>] ? ieee80211_invoke_rx_handlers+0x12c5/0x1650
>  [<ffffffff80233530>] ? enqueue_task_fair+0x190/0x2d0
>  [<ffffffff8022ecc0>] ? enqueue_task+0x50/0x60
>  [<ffffffff8025c049>] ? getnstimeofday+0x59/0xe0
>  [<ffffffff80234c24>] ? find_busiest_group+0x234/0x760
>  [<ffffffff8041eb3a>] iwl_tx_cmd_complete+0x28a/0x2e0
>  [<ffffffffa0124245>] iwl_rx_handle+0x115/0x4a0 [iwlagn]
>  [<ffffffffa01249ef>] iwl_irq_tasklet+0x41f/0xb30 [iwlagn]
>  [<ffffffff8025c049>] ? getnstimeofday+0x59/0xe0
>  [<ffffffff80242c39>] tasklet_action+0x69/0xf0
>  [<ffffffff80243784>] __do_softirq+0x94/0x160
>  [<ffffffff8020d57c>] call_softirq+0x1c/0x30
>  [<ffffffff8020ef35>] do_softirq+0x45/0x90
>  [<ffffffff80243435>] irq_exit+0x75/0xa0
>  [<ffffffff8020f196>] do_IRQ+0x86/0x110
>  [<ffffffff8020ce53>] ret_from_intr+0x0/0xa
>  <EOI>  [<ffffffff803a0322>] ? acpi_idle_enter_bm+0x2bf/0x344
>  [<ffffffff803a0318>] ? acpi_idle_enter_bm+0x2b5/0x344
>  [<ffffffff802587cf>] ? notifier_call_chain+0x3f/0x80
>  [<ffffffff80455345>] ? cpuidle_idle_call+0xa5/0x100
>  [<ffffffff8020b492>] ? cpu_idle+0x62/0xc0
>  [<ffffffff80549c7c>] ? rest_init+0x5c/0x70
> ---[ end trace 281a546e35661751 ]---
> 
> The wireless connection still seems to be good after this (I've
> found this warning after a curious look in the dmesg), but I
> thought I should send the warning to lkml just in case it has
> a deeper meaning to people out there.
> 
> The card is this one,
> Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN Network Connection (rev 61)
> 
> I can provide the whole dmesg output if needed too.
> --

This sounds like
http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1703 for
which new uCode was released to address the problem. Could you please
try with the most recent 4965 uCode available from
http://www.intellinuxwireless.org/?n=Downloads ?

Reinette



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