From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mtiwmhc13.worldnet.att.net ([204.127.131.117]:33192 "EHLO mtiwmhc13.worldnet.att.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752702AbYEPV2M (ORCPT ); Fri, 16 May 2008 17:28:12 -0400 Message-ID: <482DFC63.7050908@lwfinger.net> (sfid-20080516_232819_154745_789BEFA2) Date: Fri, 16 May 2008 16:28:03 -0500 From: Larry Finger MIME-Version: 1.0 To: wireless , Johannes Berg Subject: NULL pointer in mac80211:ieee80211_associate Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: I think this report is new. If it is a duplicate, I apologize for any noise. My kernel is from wireless-testing. A 'uname -r' commands yields 2.6.26-rc2-wl-07884-g5d3790d-dirty. It is "dirty" due to some trial patches in the b43 driver that should not have any effect on this oops. The computer is running the x86_64 version of openSUSE 10.3, and I have not seen this oops before. The system was last booted at 18:02 on May 15. Until 10:10:58, everything seemed normal. Then a reason 3 deauthentication arrived, and the following ensued: May 16 10:10:58 larrylap kernel: eth1: deauthenticate(reason=3) May 16 10:10:58 larrylap kernel: eth1: RX deauthentication from 00:1a:70:46:ba:b1 (reason=15) May 16 10:10:58 larrylap kernel: eth1: deauthenticated May 16 10:10:58 larrylap avahi-daemon[3042]: Withdrawing address record for 192.168.1.122 on eth1. May 16 10:10:58 larrylap avahi-daemon[3042]: Leaving mDNS multicast group on interface eth1.IPv4 with address 192.168.1.122. May 16 10:10:58 larrylap avahi-daemon[3042]: Interface eth1.IPv4 no longer relevant for mDNS. May 16 10:10:59 larrylap kernel: eth1: authenticate with AP 00:1a:70:46:ba:b1 May 16 10:10:59 larrylap kernel: eth1: RX authentication from 00:1a:70:46:ba:b1 (alg=0 transaction=2 status=0) May 16 10:10:59 larrylap kernel: eth1: authenticated May 16 10:10:59 larrylap kernel: eth1: associate with AP 00:1a:70:46:ba:b1 May 16 10:10:59 larrylap kernel: BUG: unable to handle kernel NULL pointer dereference at 00000000000000c0 May 16 10:10:59 larrylap kernel: IP: [] :mac80211:ieee80211_associate+0x2ba/0x53e May 16 10:10:59 larrylap kernel: PGD b8258067 PUD b8259067 PMD 0 May 16 10:10:59 larrylap kernel: Oops: 0000 [1] SMP May 16 10:10:59 larrylap kernel: CPU 0 May 16 10:10:59 larrylap kernel: Modules linked in: af_packet snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device sunrpc rfki ll_input cpufreq_conservative cpufreq_userspace cpufreq_powersave powernow_k8 fuse loop dm_mod snd_hda_intel snd_pcm sr_mo d snd_timer snd soundcore k8temp hwmon cdrom snd_page_alloc forcedeth serio_raw ac battery sg arc4 ecb crypto_blkcipher bu tton b43 firmware_class ssb rfkill mac80211 joydev cfg80211 led_class input_polldev ohci_hcd ehci_hcd sd_mod usbcore edd e xt3 mbcache jbd fan ahci pata_amd libata scsi_mod dock thermal processor May 16 10:10:59 larrylap kernel: Pid: 1684, comm: b43 Not tainted 2.6.26-rc2-wl-07884-g5d3790d-dirty #3 May 16 10:10:59 larrylap kernel: RIP: 0010:[] [] :mac80211:ieee80211_associate+0x2ba/ 0x53e May 16 10:10:59 larrylap kernel: RSP: 0018:ffff8100b9fdbb50 EFLAGS: 00010246 May 16 10:10:59 larrylap kernel: RAX: 0000000000000000 RBX: ffff8100b96ef410 RCX: 0000000000000000 May 16 10:10:59 larrylap kernel: RDX: ffff810037b88000 RSI: 0000000000000000 RDI: ffff8100b96ef42e May 16 10:10:59 larrylap kernel: RBP: 0000000000000000 R08: 0000000000000000 R09: ffff8100b8ee7780 May 16 10:10:59 larrylap kernel: R10: ffff8100b8a3e480 R11: ffff8100b8a3e480 R12: ffff810037b88b90 May 16 10:10:59 larrylap kernel: R13: ffff8100b8ee7780 R14: ffff8100b96ef42c R15: ffffffffa01bbb70 May 16 10:10:59 larrylap kernel: FS: 00007fab6fcac700(0000) GS:ffffffff8054e000(0000) knlGS:00000000f6398b10 May 16 10:10:59 larrylap kernel: CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b May 16 10:10:59 larrylap kernel: CR2: 00000000000000c0 CR3: 00000000b8257000 CR4: 00000000000006e0 May 16 10:10:59 larrylap kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 May 16 10:10:59 larrylap kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 May 16 10:10:59 larrylap kernel: Process b43 (pid: 1684, threadinfo ffff8100b9fda000, task ffff8100b871e780) May 16 10:10:59 larrylap kernel: Stack: ffffffff8028c3d0 ffff810037b88000 ffffffff8028bdc1 0000000037b88be0 May 16 10:10:59 larrylap kernel: ffff810037b88c24 0000000000000000 30373a61313a3030 623a61623a36343a May 16 10:10:59 larrylap kernel: ffff8100bb6b0031 ffff8100b9fdbd20 ffff8100b878a034 0000000000000002 May 16 10:10:59 larrylap kernel: Call Trace: May 16 10:10:59 larrylap kernel: [] kfree+0x1d6/0x1e5 May 16 10:10:59 larrylap kernel: [] kmem_cache_free+0x19b/0x1aa May 16 10:10:59 larrylap kernel: [] :mac80211:ieee80211_sta_rx_queued_mgmt+0x54b/0xf0b May 16 10:10:59 larrylap kernel: [] :mac80211:ieee80211_master_start_xmit+0x3af/0x3cc May 16 10:10:59 larrylap kernel: [] local_bh_enable_ip+0xd0/0xd7 May 16 10:10:59 larrylap kernel: [] mark_held_locks+0x58/0x72 May 16 10:10:59 larrylap kernel: [] _spin_unlock_irqrestore+0x3f/0x46 May 16 10:10:59 larrylap kernel: [] trace_hardirqs_on+0xef/0x113 May 16 10:10:59 larrylap kernel: [] :mac80211:ieee80211_sta_work+0xb6/0x738 May 16 10:10:59 larrylap kernel: [] _spin_unlock_irq+0x24/0x27 May 16 10:10:59 larrylap kernel: [] trace_hardirqs_on+0xef/0x113 May 16 10:10:59 larrylap kernel: [] :mac80211:ieee80211_sta_work+0x0/0x738 May 16 10:10:59 larrylap kernel: [] run_workqueue+0xe3/0x1ec May 16 10:10:59 larrylap kernel: [] worker_thread+0xdc/0xeb May 16 10:10:59 larrylap kernel: [] autoremove_wake_function+0x0/0x2e May 16 10:10:59 larrylap kernel: [] worker_thread+0x0/0xeb May 16 10:10:59 larrylap kernel: [] kthread+0x47/0x74 May 16 10:10:59 larrylap kernel: [] trace_hardirqs_on_thunk+0x35/0x3a May 16 10:10:59 larrylap kernel: [] child_rip+0xa/0x12 May 16 10:10:59 larrylap kernel: [] restore_args+0x0/0x30 May 16 10:10:59 larrylap kernel: [] kthreadd+0x17f/0x1a4 May 16 10:10:59 larrylap kernel: [] kthread+0x0/0x74 May 16 10:10:59 larrylap kernel: [] child_rip+0x0/0x12 May 16 10:10:59 larrylap kernel: May 16 10:10:59 larrylap kernel: May 16 10:10:59 larrylap kernel: Code: 00 49 89 c6 49 8b 84 24 b8 00 00 00 49 8d 7e 02 fc 41 88 46 01 49 8b 8c 24 b8 00 00 00 48 8b 74 24 20 f3 a4 31 f6 48 8b 4c 24 28 <4c> 8b 89 c0 00 00 00 48 c7 44 24 10 00 00 00 00 eb 4a 48 8b 5c May 16 10:10:59 larrylap kernel: RIP [] :mac80211:ieee80211_associate+0x2ba/0x53e May 16 10:10:59 larrylap kernel: RIP [] :mac80211:ieee80211_associate+0x2ba/0x53e May 16 10:10:59 larrylap kernel: RSP May 16 10:10:59 larrylap kernel: CR2: 00000000000000c0 May 16 10:10:59 larrylap kernel: ---[ end trace 0010c8900b24b09d ]--- Please let me know if you need additional information. Larry