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Date: Mon, 16 May 2011 17:49:18 +0530
Message-ID: <BANLkTimPUH4aVAs+sTyQtomZuKvQXHodkQ@mail.gmail.com> (sfid-20110516_141926_192042_C3FD2122)
Subject: Re: [Regression] Kernel panic with ath9k
From: Mohammed Shafi <shafi.wireless@gmail.com>
To: cyberGn0m <cy6ergn0m@gmail.com>,
	Andreas Hartmann <andihartmann@01019freenet.de>
Cc: linux-wireless@vger.kernel.org
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Sender: linux-wireless-owner@vger.kernel.org
List-ID: <linux-wireless.vger.kernel.org>

On Sat, May 14, 2011 at 1:36 AM, cyberGn0m <cy6ergn0m@gmail.com> wrote:
> Hi everybody
>
> I've just build compat-wireless-2011-05-11 and facing kernel painc
> with ath9k driver with kernel 2.6.33-7. Here is kernel backtrace
>
>
> May 13 02:43:53 cgmachine kernel: Call Trace:
> May 13 02:43:53 cgmachine kernel: <IRQ> [<ffffffff810e45b3>]
> __alloc_pages_nodemask+0x573/0x6c0
> May 13 02:43:53 cgmachine kernel: [<ffffffff81113dfb>]
> alloc_pages_current+0x7b/0xe0
> ?May 13 02:43:53 cgmachine kernel: [<ffffffff8111b527>] new_slab+0x2f7/0x310
> May 13 02:43:53 cgmachine kernel: [<ffffffff8111d6de>] __slab_alloc+0x1be/0x460
> May 13 02:43:53 cgmachine kernel: [<ffffffffa021e039>] ?
> ath_rxbuf_alloc+0x39/0xc0 [ath]
> ?May 13 02:43:53 cgmachine kernel: [<ffffffff8111f3fd>]
> __kmalloc_node_track_caller+0xbd/0x190
> May 13 02:43:53 cgmachine kernel: [<ffffffffa021e039>] ?
> ath_rxbuf_alloc+0x39/0xc0 [ath]
> May 13 02:43:53 cgmachine kernel: [<ffffffff813055f0>] __alloc_skb+0x80/0x190
> ?May 13 02:43:53 cgmachine kernel: [<ffffffffa021e039>]
> ath_rxbuf_alloc+0x39/0xc0 [ath]
> May 13 02:43:53 cgmachine kernel: [<ffffffffa0e92d28>]
> ath_rx_tasklet+0x2b8/0x680 [ath9k]
> May 13 02:43:53 cgmachine kernel: [<ffffffff81203c00>] ?
> swiotlb_map_page+0x0/0xf0
> ?May 13 02:43:53 cgmachine kernel: [<ffffffffa0e91149>]
> ath9k_tasklet+0xf9/0x130 [ath9k]
> May 13 02:43:53 cgmachine kernel: [<ffffffff8105ceb5>] tasklet_action+0xd5/0xe0
> May 13 02:43:53 cgmachine kernel: [<ffffffffa0e8f76f>] ?
> ath_isr+0x12f/0x190 [ath9k]
> ?May 13 02:43:53 cgmachine kernel: [<ffffffff8105e3c9>] __do_softirq+0xb9/0x1f0
> May 13 02:43:53 cgmachine kernel: [<ffffffff8100af5c>] call_softirq+0x1c/0x30
> May 13 02:43:53 cgmachine kernel: [<ffffffff8100cc25>] do_softirq+0x65/0xa0
> ?May 13 02:43:53 cgmachine kernel: [<ffffffff8105e265>] irq_exit+0x85/0x90
> May 13 02:43:53 cgmachine kernel: [<ffffffff8100c175>] do_IRQ+0x75/0xf0
> May 13 02:43:53 cgmachine kernel: [<ffffffff813ba613>] ret_from_intr+0x0/0x11
> ?May 13 02:43:53 cgmachine kernel: <EOI> [<ffffffffa008183c>] ?
> acpi_idle_enter_simple+0x117/0x14b [processor]
> May 13 02:43:53 cgmachine kernel: [<ffffffffa0081835>] ?
> acpi_idle_enter_simple+0x110/0x14b [processor]
> ?May 13 02:43:53 cgmachine kernel: [<ffffffff812f21a7>]
> cpuidle_idle_call+0xa7/0x140
> May 13 02:43:53 cgmachine kernel: [<ffffffff81008e23>] cpu_idle+0xb3/0x110
> May 13 02:43:53 cgmachine kernel: [<ffffffff813b239f>]
> start_secondary+0x1f3/0x236
>
>
> Then I've build compat-wireless-2010-06-05 and it works fine so it's regression.

*looks like not only ath9k is affected, i tried to load iwlagn and it
also paniced while trying to associate.
* thought we are missing mac80211 patches especially RCU related fixes
which were recently merged.
I don't for sure


>
> ?-- CG
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