Return-path: Received: from mail-fx0-f46.google.com ([209.85.161.46]:44618 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756275Ab1EKP5v (ORCPT ); Wed, 11 May 2011 11:57:51 -0400 Received: by fxm17 with SMTP id 17so472179fxm.19 for ; Wed, 11 May 2011 08:57:50 -0700 (PDT) Message-ID: <4DCA672E.2080906@googlemail.com> (sfid-20110511_180438_053645_F0E9AAAD) Date: Wed, 11 May 2011 12:38:38 +0200 From: Dennis Borgmann MIME-Version: 1.0 To: linux-wireless@vger.kernel.org Subject: [ath5k] kernel panic while using compat-wireless-2.6.38.2-2 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: Hello linux-wireless list! I am using a Sparklan WPEA-166G/W with Chipset AR5BXB63 Rev. 11 (it's a MiniPCI-card) in an embedded X86-System (Pipal 2140U, Intel ATOM processor). It's running voyage-0.6.5, which essentially is a Debian Lenny System. I am running kernel 2.6.33.9-rt31: demo00000001:~# uname -a Linux SSB_wlan-demo00000001 2.6.33.9-rt31-atom-ssb #1 PREEMPT RT Mon May 9 18:25:28 CEST 2011 i686 GNU/Linux I installed the compat-wireless drivers version 2.6.38.2-2 ( http://www.orbit-lab.org/kernel/compat-wireless-2.6-stable/v2.6.38/compat-wireless-2.6.38.2-2.tar.bz2 ) and installed everything I need according to this webpage: http://acx100.erley.org/stable.html Once issueing modprobe ath5k, putting the interface up and waiting for ~30sec, I get a kernel panic. Could this be a bug or am I doing something wrong? The error only occurrs after putting the interface up. If I don't do so, the error won't be there. Here is some output from the machine: demo00000001:~# modprobe ath5k && ifconfig wlan0 up [ 48.363894] Compat-wireless backport release: compat-wireless-2.6.38.2-2 [ 48.372351] Backport based on linux-2.6-allstable.git v2.6.38.2 [ 48.411748] cfg80211: Calling CRDA to update world regulatory domain [ 48.517969] ath5k 0000:09:00.0: using bridge 0000:00:1c.2 INT A to get IRQ 17 [ 48.526919] ath5k 0000:09:00.0: PCI->APIC IRQ transform: INT A -> IRQ 17 [ 48.534315] ath5k 0000:09:00.0: registered as 'phy0' [ 49.162919] ath5k phy0: Atheros AR2425 chip found (MAC: 0xe2, PHY: 0x70) demo00000001:~# [ 77.953752] ------------[ cut here ]------------ [ 77.958711] WARNING: at /home/dborgmann/downloads/compat-wireless-2.6.38.2-2/net/mac80211/rx.c:2827 ieee80211_rx+0x38/0x6fe [mac80211]() [ 77.971856] Hardware name: Luna Pier CRB [ 77.976049] Modules linked in: [last unloaded: scsi_wait_scan] [ 77.982354] Pid: 9, comm: sirq-tasklet/0 Not tainted 2.6.33.9-rt31-atom-ssb #1 [ 77.990090] Call Trace: [ 77.992732] [] warn_slowpath_common+0x65/0x7c [ 77.998419] [] ? ieee80211_rx+0x38/0x6fe [mac80211] [ 78.004672] [] warn_slowpath_null+0xd/0x10 [ 78.010119] [] ieee80211_rx+0x38/0x6fe [mac80211] [ 78.016157] [] ? __alloc_skb+0x4c/0x110 [ 78.021296] [] ? nommu_map_page+0x3c/0x51 [ 78.026648] [] ? ath5k_rx_skb_alloc+0x99/0x10a [ath5k] [ 78.033190] [] ath5k_tasklet_rx+0x59f/0x60b [ath5k] [ 78.039454] [] __tasklet_action.clone.8+0x76/0xd1 [ 78.045502] [] tasklet_action+0x23/0x25 [ 78.050640] [] run_ksoftirqd+0xf0/0x19b [ 78.055788] [] ? run_ksoftirqd+0x0/0x19b [ 78.061032] [] kthread+0x5e/0x63 [ 78.065538] [] ? kthread+0x0/0x63 [ 78.070107] [] kernel_thread_helper+0x6/0x10 [ 78.075695] ---[ end trace 6b864a3c0aa1a8eb ]--- Best regards, Dennis