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From: Michael Buesch <mb@bu3sch.de>
To: Sitsofe Wheeler <sitsofe@yahoo.com>
Subject: Re: WARNING: at net/mac80211/rx.c:319 __ieee80211_rx_handle_packet+0x325/0x775()
Date: Sat, 28 Jun 2008 23:57:30 +0200
Cc: linux-wireless@vger.kernel.org, kernel-testers@vger.kernel.org
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On Saturday 28 June 2008 22:48:37 Sitsofe Wheeler wrote:
> When I boot 2.6.26-rc8 on an x86_64 system I receive the following trace
> in the logs:
> 
> > [   72.384009] ------------[ cut here ]------------
> > [   72.384021] WARNING: at net/mac80211/rx.c:319 __ieee80211_rx_handle_packet+0x325/0x775()

This seems to be the packet alignment warning. It's harmless
on your machine. You can disable it by turning off CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT.

However, which wireless driver do you use? This is a bug in the driver.

> > [   72.384026] Modules linked in:
> > [   72.384033] Pid: 3780, comm: glxinfo Not tainted 2.6.26-rc8skw #3
> > [   72.384037]
> > [   72.384039] Call Trace:
> > [   72.384042]  <IRQ>  [<ffffffff8023234f>] warn_on_slowpath+0x58/0x94
> > [   72.384061]  [<ffffffff804da926>] ? _spin_unlock_irqrestore+0x38/0x47
> > [   72.384071]  [<ffffffff80237145>] ? __tasklet_schedule+0x97/0xa6
> > [   72.384080]  [<ffffffff804bfd04>] ? ieee80211_rx_irqsafe+0x63/0x6a
> > [   72.384090]  [<ffffffff80248bcd>] ? ktime_get+0x11/0x42
> > [   72.384100]  [<ffffffff80211b37>] ? native_sched_clock+0x50/0x6d
> > [   72.384109]  [<ffffffff804c0283>] __ieee80211_rx_handle_packet+0x325/0x775
> > [   72.384119]  [<ffffffff802533b3>] ? __lock_acquire+0xdb4/0xdc3
> > [   72.384128]  [<ffffffff802533b3>] ? __lock_acquire+0xdb4/0xdc3
> > [   72.384136]  [<ffffffff804c0af6>] ? __ieee80211_rx+0x63/0x538
> > [   72.384143]  [<ffffffff804c0af6>] ? __ieee80211_rx+0x63/0x538
> > [   72.384151]  [<ffffffff804c0f57>] __ieee80211_rx+0x4c4/0x538
> > [   72.384161]  [<ffffffff804b2fc6>] ieee80211_tasklet_handler+0x75/0x11b
> > [   72.384169]  [<ffffffff80236f18>] ? tasklet_action+0x44/0xdf
> > [   72.384176]  [<ffffffff80236f56>] tasklet_action+0x82/0xdf
> > [   72.384183]  [<ffffffff8023789f>] __do_softirq+0x70/0xf1
> > [   72.384191]  [<ffffffff8020c5bc>] call_softirq+0x1c/0x28
> > [   72.384200]  [<ffffffff8020e181>] do_softirq+0x39/0x8a
> > [   72.384207]  [<ffffffff802373d8>] irq_exit+0x4e/0x8f
> > [   72.384214]  [<ffffffff8020e48e>] do_IRQ+0x148/0x16a
> > [   72.384222]  [<ffffffff8020b8b6>] ret_from_intr+0x0/0xf
> > [   72.384229]  <EOI>
> > [   72.384236] ---[ end trace 4e9264cea4c3b5b9 ]---
> 
> The config I am using can be found on
> http://sucs.org/~sits/test/config-20080628.txt . I don't remember seeing
> this error in old 32 bit kernels but this the first 64 bit kernel I've
> started testing with.


-- 
Greetings Michael.