Aug 19 17:29:26 vasyas-laptop kernel: [  124.348182] usb 5-1: new full speed USB device using uhci_hcd and address 2
Aug 19 17:29:26 vasyas-laptop kernel: [  124.561249] usb 5-1: configuration #2 chosen from 1 choice
Aug 19 17:29:26 vasyas-laptop kernel: [  124.609382] cdc_acm 5-1:2.1: ttyACM0: USB ACM device
Aug 19 17:29:26 vasyas-laptop kernel: [  124.625657] usbcore: registered new interface driver cdc_acm
Aug 19 17:29:26 vasyas-laptop kernel: [  124.625666] cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adapters
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626404] *pde = 00000000 
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626427] Dumping ftrace buffer:
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626433]    (ftrace buffer empty)
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626438] Modules linked in: cdc_wdm(+) cdc_acm aes_i586 aes_generic binfmt_misc bridge stp bnep vmnet ppdev parport_pc vmblock vmci vmmon input_polldev joydev sbp2 lp parport snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi arc4 snd_rawmidi snd_seq_midi_event ecb snd_seq snd_timer snd_seq_device iwl3945 pcmcia mac80211 snd iTCO_wdt nvidia(P) led_class intel_agp yenta_socket rsrc_nonstatic soundcore iTCO_vendor_support psmouse pcmcia_core dcdbas video btusb snd_page_alloc pcspkr agpgart cfg80211 serio_raw output usbhid ohci1394 ieee1394 tg3 fbcon tileblit font bitblit softcursor
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626557] 
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626563] Pid: 4546, comm: modprobe Tainted: P           (2.6.28-14-generic #47-Ubuntu) Latitude D830                   
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626571] EIP: 0060:[<f7fb85f5>] EFLAGS: 00010286 CPU: 0
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626579] EIP is at wdm_probe+0x165/0x410 [cdc_wdm]
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626584] EAX: 00000000 EBX: 00000800 ECX: f7fbc600 EDX: f6359400
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626589] ESI: f4dbaa65 EDI: f4d786c0 EBP: f518dcf4 ESP: f518dca8
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626594]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Aug 19 17:29:26 vasyas-laptop kernel: [  124.626608]  f518dcb4 c01cfa60 f43f6ac0 f518dcd8 c020c3c6 f6359400 f635941c c020bc0b
Aug 19 17:29:26 vasyas-laptop kernel: [  124.627089] ---[ end trace 7c86ba421ff3ba7a ]---
Aug 19 17:36:26 vasyas-laptop kernel: [  544.776258] usb 5-1: USB disconnect, address 2