Jul 20 20:30:44 XXXXX-PC kernel: [ 4801.868695] hub 3-0:1.0: unable to enumerate USB device on port 1
Jul 20 20:30:44 XXXXX-PC kernel: [ 4802.252111] usb 3-1: new high-speed USB device number 4 using xhci_hcd
Jul 20 20:30:57 XXXXX-PC rtkit-daemon[1858]: The canary thread is apparently starving. Taking action.
Jul 20 20:30:57 XXXXX-PC rtkit-daemon[1858]: Demoting known real-time threads.
Jul 20 20:30:57 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2260 of process 2228 (n/a).
Jul 20 20:30:57 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2259 of process 2228 (n/a).
Jul 20 20:30:57 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2258 of process 2228 (n/a).
Jul 20 20:30:57 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2228 of process 2228 (n/a).
Jul 20 20:30:57 XXXXX-PC rtkit-daemon[1858]: Demoted 4 threads.
Jul 20 20:31:00 XXXXX-PC kernel: [ 4807.244928] xhci_hcd 0000:03:00.0: Timeout while waiting for address device command
Jul 20 20:31:00 XXXXX-PC kernel: [ 4818.041422] [sched_delayed] sched: RT throttling activated
Jul 20 20:31:00 XXXXX-PC kernel: [ 4818.241177] usb 3-1: Device not responding to set address.
Jul 20 20:31:00 XXXXX-PC kernel: [ 4818.444883] usb 3-1: device not accepting address 4, error -71
Jul 20 20:31:10 XXXXX-PC rtkit-daemon[1858]: The canary thread is apparently starving. Taking action.
Jul 20 20:31:10 XXXXX-PC rtkit-daemon[1858]: Demoting known real-time threads.
Jul 20 20:31:10 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2260 of process 2228 (n/a).
Jul 20 20:31:10 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2259 of process 2228 (n/a).
Jul 20 20:31:10 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2258 of process 2228 (n/a).
Jul 20 20:31:10 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2228 of process 2228 (n/a).
Jul 20 20:31:10 XXXXX-PC rtkit-daemon[1858]: Demoted 4 threads.
Jul 20 20:31:20 XXXXX-PC rtkit-daemon[1858]: The canary thread is apparently starving. Taking action.
Jul 20 20:31:20 XXXXX-PC rtkit-daemon[1858]: Demoting known real-time threads.
Jul 20 20:31:20 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2260 of process 2228 (n/a).
Jul 20 20:31:20 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2259 of process 2228 (n/a).
Jul 20 20:31:20 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2258 of process 2228 (n/a).
Jul 20 20:31:20 XXXXX-PC rtkit-daemon[1858]: Successfully demoted thread 2228 of process 2228 (n/a).
Jul 20 20:31:20 XXXXX-PC rtkit-daemon[1858]: Demoted 4 threads.
Jul 20 20:31:22 XXXXX-PC kernel: [ 4823.437728] xhci_hcd 0000:03:00.0: Timeout while waiting for a slot
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.598729] xhci_hcd 0000:03:00.0: Stopped the command ring failed, maybe the host is dead
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.598746] xhci_hcd 0000:03:00.0: Abort command ring failed
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.598888] xhci_hcd 0000:03:00.0: HC died; cleaning up
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.598974] hub 3-0:1.0: cannot reset port 1 (err = -19)
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.598977] hub 3-0:1.0: cannot disable port 1 (err = -19)
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599000] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599002] IP: [<ffffffff815230f3>] xhci_free_dev+0x63/0x160
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599008] PGD 1df0ce067 PUD 0
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599010] Oops: 0002 [#1] SMP
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599013] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) hid_generic usbhid hid parport_pc(F) ppdev(F) rfcomm bnep bluetooth snd_hda_codec_hdmi coretemp kvm_intel joydev(F) kvm xpad ff_memless usb_storage(F) ghash_clmulni_intel(F) aesni_intel(F) aes_x86_64(F) xts(F) lrw(F) gf128mul(F) ablk_helper(F) cryptd(F) eeepc_wmi nls_iso8859_1(F) asus_wmi sparse_keymap mxm_wmi snd_hda_codec_realtek microcode(F) snd_hda_intel psmouse(F) serio_raw(F) snd_hda_codec snd_hwdep(F) snd_pcm(F) lpc_ich snd_page_alloc(F) snd_seq_midi(F) snd_seq_midi_event(F) snd_rawmidi(F) snd_seq(F) snd_seq_device(F) snd_timer(F) nvidia(POF) snd(F) video(F) mei mac_hid soundcore(F) wmi lp(F) parport(F) e1000e(F) ahci(F) libahci(F)
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599042] CPU 3
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599045] Pid: 35, comm: khubd Tainted: PF O 3.8.0-26-generic #38-Ubuntu System manufacturer System Product Name/Maximus IV GENE-Z
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599046] RIP: 0010:[<ffffffff815230f3>] [<ffffffff815230f3>] xhci_free_dev+0x63/0x160
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599049] RSP: 0018:ffff880212cb5d20 EFLAGS: 00010246
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599050] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599051] RDX: ffff880212c95000 RSI: ffff8801eff42800 RDI: ffff88020f826a00
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599052] RBP: ffff880212cb5d50 R08: 0000000000000001 R09: ffffffff81883dce
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599053] R10: 00000000000004d1 R11: 0000000000000006 R12: 0000000000000000
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599054] R13: ffff8801eff42800 R14: ffff880212c95000 R15: 0000000000000040
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599055] FS: 0000000000000000(0000) GS:ffff88021ed80000(0000) knlGS:0000000000000000
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599057] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599058] CR2: 0000000000000040 CR3: 00000001d3f72000 CR4: 00000000000407e0
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599059] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599060] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599061] Process khubd (pid: 35, threadinfo ffff880212cb4000, task ffff88021339c5c0)
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599062] Stack:
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599063] ffff88020f826a00 ffff8801eff42800 ffff88020f827600 ffff88020f861000
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599065] 00000000ffffff00 ffff88020f826a00 ffff880212cb5df0 ffffffff814f7865
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599067] 0000000000000000 0000000080000100 ffff880212cb5dc8 ffffffff814fdf02
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599069] Call Trace:
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599073] [<ffffffff814f7865>] hub_port_connect_change+0x335/0x9f0
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599076] [<ffffffff814fdf02>] ? usb_control_msg+0xf2/0x140
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599078] [<ffffffff814f8165>] hub_events+0x245/0x700
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599080] [<ffffffff814f8655>] hub_thread+0x35/0x1a0
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599083] [<ffffffff8107dca0>] ? finish_wait+0x80/0x80
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599085] [<ffffffff814f8620>] ? hub_events+0x700/0x700
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599086] [<ffffffff8107d390>] kthread+0xc0/0xd0
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599088] [<ffffffff8107d2d0>] ? kthread_create_on_node+0x120/0x120
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599092] [<ffffffff816d48ac>] ret_from_fork+0x7c/0xb0
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599093] [<ffffffff8107d2d0>] ? kthread_create_on_node+0x120/0x120
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599094] Code: ff ff 83 f8 ed 0f 85 e5 00 00 00 49 63 85 b0 04 00 00 31 db 4d 8b a4 c6 10 01 00 00 4d 8d 7c 24 40 0f 1f 80 00 00 00 00 48 63 c3 <41> 83 27 fb 83 c3 01 48 69 c0 e8 00 00 00 49 81 c7 e8 00 00 00
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599114] RIP [<ffffffff815230f3>] xhci_free_dev+0x63/0x160
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599116] RSP <ffff880212cb5d20>
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599117] CR2: 0000000000000040
Jul 20 20:31:22 XXXXX-PC kernel: [ 4839.599119] ---[ end trace 274feb574611a68c ]---