Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759109Ab0FJOnp (ORCPT ); Thu, 10 Jun 2010 10:43:45 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:51826 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752048Ab0FJOnm (ORCPT ); Thu, 10 Jun 2010 10:43:42 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:cc:content-type; b=GP2tuXwdaya2c22hJoY1ppdYFuXpy8ggIrbwg4epBUpvT1bPOElg66YQhfALmEH3z3 WeJhjDLACzbXuVaa6+I2+KPQz9GUPqXJx+vqc5BbwfXR/hnLSeZg/7kfFBPSTOxIhy4Y kK+RzXxGwXP1IBEGk6CQq7vWmOsDPyrnRvNo8= MIME-Version: 1.0 Date: Thu, 10 Jun 2010 16:43:40 +0200 Message-ID: Subject: Ooops in iwl3945_bg_request_scan From: Zdenek Kabelac To: ilw@linux.intel.com Cc: Linux Kernel Mailing List Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4327 Lines: 88 Hi When I've switched wifi killswitch on - to enable wireless - I've got following oops: NetworkManager: WiFi now enabled by radio killswitch NetworkManager: (wlan0): bringing up device. ADDRCONF(NETDEV_UP): wlan0: link is not ready BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 IP: [] iwl3945_bg_request_scan+0x56d/0xf00 [iwl3945] PGD 11f3c2067 PUD 127c1c067 PMD 0 Oops: 0000 [#1] PREEMPT SMP last sysfs file: /sys/devices/platform/dock.0/flags CPU 0 Modules linked in: dm_repl_slink_blockdev dm_repl_log_ringbuffer dm_replicator dm_registry reiserfs usb_storage dm_snapshot sysprof_module nfs aes_generic hidp rfcomm sco l2cap tun nfsd lockd nfs_acl auth_rpcgss exportfs ip6_tables xt_tcpudp bridge stp llc autofs4 sunrpc ipv6 ipt_REJECT xt_physdev xt_state iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables binfmt_misc loop dm_mirror dm_region_hash dm_log dm_mod kvm_intel kvm i915 drm_kms_helper drm i2c_algo_bit uinput arc4 ecb snd_hda_codec_analog cryptomgr crypto_hash aead pcompress crypto_blkcipher crypto_algapi snd_hda_intel iwl3945 snd_hda_codec iwlcore mac80211 sdhci_pci snd_seq thinkpad_acpi sdhci btusb rtc_cmos snd_seq_device snd_pcm mmc_core rtc_core battery iTCO_wdt bluetooth led_class nvram snd_timer cfg80211 psmouse snd iTCO_vendor_support rtc_lib ac i2c_i801 rfkill soundcore i2c_core serio_raw snd_page_alloc evdev e1000e usbhid hid sr_mod cdr kernel: om uhci_hcd ehci_hcd usbcore video backlight output button [last unloaded: scsi_wait_scan] Pid: 1692, comm: iwl3945 Tainted: G W 2.6.34-00002-g75254f6 #70 6464CTO/6464CTO RIP: 0010:[] [] iwl3945_bg_request_scan+0x56d/0xf00 [iwl3945] RSP: 0018:ffff880139b2fcc0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801340a1cd8 RBP: ffff880139b2fdb0 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88013a2a1d20 R13: ffff88013a2a2830 R14: 0000000000000000 R15: ffff8801340a1800 FS: 0000000000000000(0000) GS:ffff880002600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000020 CR3: 0000000127c86000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process iwl3945 (pid: 1692, threadinfo ffff880139b2e000, task ffff88013b232320) Stack: ffff880139b2fd40 0000000000000046 0000000000000000 ffffffff810cffb0 <0> 0000000000000000 ffff88013b232320 ffffffff81432b85 0000000000000046 <0> 00000000001cffe0 0000000000000002 0000000000000000 0000000000000000 Call Trace: [] ? probe_workqueue_execution+0x40/0xa0 [] ? _raw_spin_lock_irqsave+0x25/0x90 [] ? worker_thread+0x1d1/0x460 [] ? iwl3945_bg_request_scan+0x0/0xf00 [iwl3945] [] worker_thread+0x222/0x460 [] ? worker_thread+0x1d1/0x460 [] ? autoremove_wake_function+0x0/0x40 [] ? worker_thread+0x0/0x460 [] kthread+0x96/0xa0 [] kernel_thread_helper+0x4/0x10 [] ? finish_task_switch+0x6e/0xf0 [] ? _raw_spin_unlock_irq+0x3b/0x60 [] ? restore_args+0x0/0x30 [] ? kthread+0x0/0xa0 [] ? kernel_thread_helper+0x0/0x10 Code: 66 0f 1f 44 00 00 41 ff c6 49 8b 84 24 40 0a 00 00 44 39 70 08 0f 8e 89 05 00 00 49 63 d6 48 8b 00 48 89 d6 48 c1 e6 05 48 01 d6 <80> 7c 30 20 00 74 d4 48 63 c3 ff c3 48 89 c2 48 c1 e2 05 48 8d RIP [] iwl3945_bg_request_scan+0x56d/0xf00 [iwl3945] RSP CR2: 0000000000000020 ---[ end trace 3feb2c894fdf394c ]--- My machine is T61, 4GB C2D, using vanilla 2.6.34 released kernel with 15 days uptime. Maybe it's the fault of tracing enabled in my kernel ? Zdenek -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/