Public bug reported: occasionally I get the following. When this happens, the system no longer detects USB device insertions, and removals:
Linux version 2.6.32-22-generic (bui...@yellow) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #36-Ubuntu SMP Thu Jun 3 19:31:57 UTC 2010 [ 1137.989426] BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 [ 1137.989431] IP: [<ffffffff81368b98>] dev_get_drvdata+0x18/0x30 [ 1137.989440] PGD 0 [ 1137.989443] Oops: 0000 [#1] SMP [ 1137.989446] last sysfs file: /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-4/1-4.2/1-4.2:1.0/host8/target8:0:0/8:0:0:0/evt_media_change [ 1137.989450] CPU 5 [ 1137.989452] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat ppdev vboxnetadp vboxnetflt vboxdrv binfmt_misc kvm_intel kvm nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_usb_audio snd_usb_lib snd_pcm_oss snd_mixer_oss snd_hwdep snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi sbp2 snd_rawmidi nvidia(P) snd_seq_midi_event snd_seq snd_timer snd_seq_device snd snd_page_alloc uvcvideo videodev v4l1_compat v4l2_compat_ioctl32 usblp psmouse soundcore ftdi_sio fbcon tileblit font bitblit softcursor vga16fb vgastate lp parport usbserial serio_raw raid10 raid456 async_raid6_recov async_pq usb_storage raid6_pq async_xor usbhid ohci1394 xor hid async_memcpy ieee1394 async_tx pata_marvell ahci e1000e raid1 raid0 multipath linear [ 1137.989516] Pid: 4093, comm: usb-storage Tainted: P 2.6.32-22-generic #36-Ubuntu [ 1137.989519] RIP: 0010:[<ffffffff81368b98>] [<ffffffff81368b98>] dev_get_drvdata+0x18/0x30 [ 1137.989524] RSP: 0018:ffff8801223d9c90 EFLAGS: 00010206 [ 1137.989527] RAX: 0000000000000000 RBX: ffff88011c32c000 RCX: ffff88015fe20598 [ 1137.989529] RDX: 0000000000000000 RSI: 0000000000000282 RDI: 0000000000000030 [ 1137.989532] RBP: ffff8801223d9c90 R08: 0000000000000000 R09: 0000000000000000 [ 1137.989535] R10: 00000000000000c0 R11: 0000000000000000 R12: ffff88011c32e890 [ 1137.989537] R13: ffff88012c547800 R14: ffff88014f115890 R15: ffff88011c218000 [ 1137.989540] FS: 0000000000000000(0000) GS:ffff8800282a0000(0000) knlGS:0000000000000000 [ 1137.989543] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b [ 1137.989546] CR2: 0000000000000038 CR3: 0000000001001000 CR4: 00000000000026e0 [ 1137.989548] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1137.989551] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 1137.989554] Process usb-storage (pid: 4093, threadinfo ffff8801223d8000, task ffff8800cf1796f0) [ 1137.989556] Stack: [ 1137.989558] ffff8801223d9cb0 ffffffffa00bf769 ffff88012c547800 ffff88011c32c000 [ 1137.989562] <0> ffff8801223d9d20 ffffffffa00bf8d9 0000000000000000 ffff880100000000 [ 1137.989567] <0> 4000000000001388 020101006364058f ffff8801223d0103 ffff88014f115800 [ 1137.989572] Call Trace: [ 1137.989581] [<ffffffffa00bf769>] usbhid_restart_queues+0x49/0xf0 [usbhid] [ 1137.989587] [<ffffffffa00bf8d9>] hid_post_reset+0xc9/0x100 [usbhid] [ 1137.989594] [<ffffffff813d0dcc>] usb_reset_device+0x13c/0x190 [ 1137.989601] [<ffffffffa00e7fb9>] usb_stor_port_reset+0x59/0x60 [usb_storage] [ 1137.989608] [<ffffffffa00e848f>] usb_stor_invoke_transport+0x8f/0x420 [usb_storage] [ 1137.989614] [<ffffffff81540c45>] ? _spin_lock_irq+0x15/0x20 [ 1137.989618] [<ffffffff8153edaf>] ? wait_for_common+0x12f/0x170 [ 1137.989624] [<ffffffff8105b180>] ? default_wake_function+0x0/0x20 [ 1137.989631] [<ffffffffa00e7e6e>] usb_stor_transparent_scsi_command+0xe/0x10 [usb_storage] [ 1137.989638] [<ffffffffa00ea43b>] usb_stor_control_thread+0x17b/0x260 [usb_storage] [ 1137.989645] [<ffffffffa00ea2c0>] ? usb_stor_control_thread+0x0/0x260 [usb_storage] [ 1137.989650] [<ffffffff81084fa6>] kthread+0x96/0xa0 [ 1137.989655] [<ffffffff810141ea>] child_rip+0xa/0x20 [ 1137.989658] [<ffffffff81084f10>] ? kthread+0x0/0xa0 [ 1137.989662] [<ffffffff810141e0>] ? child_rip+0x0/0x20 [ 1137.989663] Code: 6b 00 c9 83 f8 01 19 c0 f7 d0 83 e0 f0 c3 0f 1f 44 00 00 55 48 89 e5 0f 1f 44 00 00 48 85 ff 75 0a 31 c0 c9 c3 66 0f 1f 44 00 00 <48> 8b 47 08 48 85 c0 74 ed 48 8b 80 88 00 00 00 c9 c3 66 0f 1f [ 1137.989699] RIP [<ffffffff81368b98>] dev_get_drvdata+0x18/0x30 [ 1137.989703] RSP <ffff8801223d9c90> [ 1137.989705] CR2: 0000000000000038 [ 1137.989708] ---[ end trace 1f1126325f2016c6 ]--- [ 1137.990820] usb 1-4.2: USB disconnect, address 19 [49900.089110] __ratelimit: 18 callbacks suppressed ** Affects: ubuntu Importance: Undecided Status: New -- USB crash in kernel https://bugs.launchpad.net/bugs/594887 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs