I can duplicate this behavior on my machine quite easily by connecting a cell phone via USB. I appear to have a very similar traceback:
[ 100.949036] usb 3-2: new full speed USB device using ohci_hcd and address 3 [ 101.089059] usb 3-2: device descriptor read/64, error -62 [ 101.333068] usb 3-2: device descriptor read/64, error -62 [ 101.573059] usb 3-2: new full speed USB device using ohci_hcd and address 4 [ 101.713068] usb 3-2: device descriptor read/64, error -62 [ 101.993238] usb 3-2: configuration #1 chosen from 1 choice [ 102.136454] BUG: unable to handle kernel NULL pointer dereference at 00000003 [ 102.136465] IP: [<f82e05f5>] wdm_probe+0x165/0x410 [cdc_wdm] [ 102.136477] *pde = 00000000 [ 102.136485] Oops: 0000 [#1] SMP [ 102.136491] last sysfs file: /sys/devices/pci0000:00/0000:00:12.0/host0/target0:0:0/0:0:0:0/block/sda/sda5/stat [ 102.136498] Dumping ftrace buffer: [ 102.136503] (ftrace buffer empty) [ 102.136507] Modules linked in: cdc_wdm(+) binfmt_misc bridge stp bnep input_polldev video output lp snd_cmipci gameport snd_opl3_lib snd_hda_intel snd_hwdep snd_mpu401_uart snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device psmouse snd k8temp serio_raw pcspkr soundcore snd_page_alloc i2c_piix4 ppdev parport_pc parport fglrx(P) ati_agp agpgart usbhid tg3 floppy fbcon tileblit font bitblit softcursor [ 102.136567] [ 102.136574] Pid: 3636, comm: modprobe Tainted: P (2.6.28-11-generic #42-Ubuntu) HP Compaq dc5750 Microtower [ 102.136581] EIP: 0060:[<f82e05f5>] EFLAGS: 00010286 CPU: 1 [ 102.136588] EIP is at wdm_probe+0x165/0x410 [cdc_wdm] [ 102.136593] EAX: 00000000 EBX: 00000800 ECX: f82e4600 EDX: efde6a00 [ 102.136598] ESI: f098be25 EDI: efb10600 EBP: efb3bcf4 ESP: efb3bca8 [ 102.136602] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 102.136607] Process modprobe (pid: 3636, ti=efb3a000 task=f0ae57f0 task.ti=efb3a000) [ 102.136611] Stack: [ 102.136614] efb3bcb4 c01cf830 f07db428 efb3bcd8 c020c036 efde6a00 efde6a1c c020b87b [ 102.136626] 00000000 c0501a4b efd48000 fffffff4 0800b2f4 efd4805c efde6ab8 f82e2394 [ 102.136638] efde6a00 00000000 efde6a1c efb3bd20 c03bb942 efde6a94 efb3bd0c c020c692 [ 102.136650] Call Trace: [ 102.136654] [<c01cf830>] ? iput+0x20/0x60 [ 102.136663] [<c020c036>] ? sysfs_addrm_finish+0x36/0xf0 [ 102.136673] [<c020b87b>] ? sysfs_addrm_start+0x5b/0xa0 [ 102.136680] [<c0501a4b>] ? mutex_lock+0xb/0x20 [ 102.136689] [<c03bb942>] ? usb_probe_interface+0xa2/0x130 [ 102.136699] [<c020c692>] ? sysfs_create_link+0x12/0x20 [ 102.136708] [<c034f096>] ? really_probe+0xe6/0x180 [ 102.136716] [<c03bada1>] ? usb_match_id+0x41/0x60 [ 102.136724] [<c034f16e>] ? driver_probe_device+0x3e/0x50 [ 102.136732] [<c034f209>] ? __driver_attach+0x89/0x90 [ 102.136739] [<c034e943>] ? bus_for_each_dev+0x53/0x80 [ 102.136746] [<c034eec9>] ? driver_attach+0x19/0x20 [ 102.136752] [<c034f180>] ? __driver_attach+0x0/0x90 [ 102.136759] [<c034e317>] ? bus_add_driver+0x1c7/0x240 [ 102.136768] [<c034f3a9>] ? driver_register+0x69/0x140 [ 102.136776] [<c03bbc0c>] ? usb_register_driver+0x7c/0x100 [ 102.136783] [<c020b280>] ? sysfs_ilookup_test+0x0/0x20 [ 102.136791] [<f81e4000>] ? wdm_init+0x0/0x19 [cdc_wdm] [ 102.136798] [<f81e4017>] ? wdm_init+0x17/0x19 [cdc_wdm] [ 102.136805] [<c010111e>] ? _stext+0x2e/0x170 [ 102.136811] [<c020c015>] ? sysfs_addrm_finish+0x15/0xf0 [ 102.136818] [<c020b7e3>] ? sysfs_add_one+0x13/0x50 [ 102.136824] [<c020b85f>] ? sysfs_addrm_start+0x3f/0xa0 [ 102.136831] [<c01a908c>] ? __vunmap+0x9c/0xe0 [ 102.136840] [<c012c6fc>] ? enqueue_entity+0x13c/0x360 [ 102.136850] [<c0132131>] ? enqueue_task_fair+0x31/0x70 [ 102.136857] [<c0133b74>] ? try_to_wake_up+0x104/0x290 [ 102.136867] [<c0163fc8>] ? sys_init_module+0x88/0x1b0 [ 102.136876] [<c0103f6b>] ? sysenter_do_call+0x12/0x2f [ 102.136883] Code: 00 00 00 c7 87 9c 00 00 00 10 0c 2e f8 66 89 47 38 8d 87 94 00 00 00 89 87 94 00 00 00 89 87 98 00 00 00 8b 02 8b 40 0c 89 45 d4 <0f> b6 40 03 83 e0 03 83 f8 03 74 3f c7 45 e0 ea ff ff ff 89 f8 [ 102.136943] EIP: [<f82e05f5>] wdm_probe+0x165/0x410 [cdc_wdm] SS:ESP 0068:efb3bca8 [ 102.136955] ---[ end trace ca56c72738643440 ]--- -- USB stops working after a while https://bugs.launchpad.net/bugs/228746 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
