Whenever I boot my laptop and log into the desktop with a USB-C to USB-3 hub attached and a Samsung 840 EVO SSD attached to the USB-C hub, the laptop locks up completely for kernel versions 4.12-rc1 through 4.12-rc6. Kernels 4.10 and 4.11 do not crash, so this is a regression. The lock-up occurs shortly after logging into the desktop. Note that when I am presented with the lightdm login screen, my mouse attached via the USB-C to USB-3 hub works, but it stops working after the desktop first appears, as if the USB-C hub has gone offline, and then it starts working again maybe five to ten seconds later (this also happens in kernel 4.11, but 4.11 successfully mounts the SSD and does not lock up). Shortly after this in kernels 4.12-rcX, the SSD fails to mount and at some point after this, syslog shows soft lockup errors. Eventually the entire laptop locks up and has to be hard-reset. When I tried 4.12-rc6 today, the laptop locked up almost immediately and did not store a message in syslog. This bug happens every time when rebooting and then logging into the desktop with that particular configuration, ie SSD attached via the USB-C to USB-3 hub. If I have the USB-C to USB-3 hub attached and the SSD attached via one of the laptop's USB-3 ports, the laptop does not lock up. If I plug in the SSD to the USB-C hub after booting into the desktop, the laptop does not lock up. Attached is a log of the soft lockup BUG message from 4.12-rc5 and also another NULL dereference error I noticed today that might be related.
Jun 15 22:00:34 xps15-9550 kernel: [ 70.138813] NMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [ntpdate:4027] Jun 15 22:00:34 xps15-9550 kernel: [ 70.138816] Modules linked in: msr cmac rfcomm xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c xt_tcpudp bridge stp llc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev btusb hid_multitouch btrtl media snd_hda_codec_hdmi bbswitch(OE) iptable_filter xt_owner bnep binfmt_misc dm_crypt snd_hda_codec_realtek snd_hda_codec_generic nls_iso8859_1 dell_wmi mxm_wmi snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm dell_laptop snd_seq_midi dell_smbios snd_seq_midi_event dcdbas intel_rapl x86_pkg_temp_thermal snd_rawmidi intel_powerclamp snd_seq kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd snd_seq_device Jun 15 22:00:34 xps15-9550 kernel: [ 70.138863] glue_helper snd_timer cryptd intel_cstate intel_rapl_perf input_leds brcmfmac brcmutil joydev cfg80211 snd rtsx_pci_ms serio_raw memstick hci_uart soundcore idma64 virt_dma btbcm serdev mei_me btqca processor_thermal_device btintel mei intel_lpss_pci intel_pch_thermal shpchp intel_soc_dts_iosf bluetooth int3403_thermal ecdh_generic wmi dell_smo8800 int3402_thermal intel_hid intel_lpss_acpi int340x_thermal_zone intel_lpss sparse_keymap mac_hid acpi_als int3400_thermal kfifo_buf acpi_thermal_rel industrialio acpi_pad coretemp parport_pc sunrpc ppdev lp parport ip_tables x_tables autofs4 btrfs xor raid6_pq uas usb_storage hid_logitech_hidpp hid_logitech_dj usbhid rtsx_pci_sdmmc i915 i2c_algo_bit drm_kms_helper syscopyarea psmouse sysfillrect sysimgblt fb_sys_fops nvme nvme_core drm ahci Jun 15 22:00:34 xps15-9550 kernel: [ 70.138892] rtsx_pci libahci i2c_hid hid pinctrl_sunrisepoint video pinctrl_intel [last unloaded: nvidia] Jun 15 22:00:34 xps15-9550 kernel: [ 70.138897] CPU: 2 PID: 4027 Comm: ntpdate Tainted: P D OE 4.12.0-041200rc5-generic #201706112031 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138914] Hardware name: Dell Inc. XPS 15 9550/ , BIOS 1.2.25 05/07/2017 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138915] task: ffff9eff9a235c00 task.stack: ffffad2303374000 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138918] RIP: 0010:smp_call_function_many+0x1cb/0x230 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138919] RSP: 0018:ffffad2303377df8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138921] RAX: 0000000000000003 RBX: 0000000000000008 RCX: 0000000000000006 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138922] RDX: ffff9effbdda0598 RSI: 0000000000000000 RDI: ffff9effad022ad8 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138922] RBP: ffffad2303377e30 R08: ffffffffffffffc0 R09: 00000000000000fb Jun 15 22:00:34 xps15-9550 kernel: [ 70.138923] R10: ffffe365512f22c0 R11: 003b9aca00000000 R12: ffffffff826fbe80 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138924] R13: 0000000000000000 R14: ffff9effbdc9ce40 R15: 000000000001ce00 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138925] FS: 00007f233f2a2380(0000) GS:ffff9effbdc80000(0000) knlGS:0000000000000000 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138926] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138927] CR2: 00005607798d9000 CR3: 00000004a6080000 CR4: 00000000003406e0 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138928] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138929] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138930] Call Trace: Jun 15 22:00:34 xps15-9550 kernel: [ 70.138933] ? hrtimer_force_reprogram+0x90/0x90 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138935] on_each_cpu+0x2d/0x60 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138937] clock_was_set+0x1c/0x30 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138938] do_settimeofday64+0xf5/0x160 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138940] do_sys_settimeofday64+0xbb/0x110 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138942] posix_clock_realtime_set+0x13/0x20 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138943] SyS_clock_settime+0x85/0xd0 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138945] entry_SYSCALL_64_fastpath+0x1e/0xa9 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138946] RIP: 0033:0x7f233e4a3967 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138947] RSP: 002b:00007ffdba69b0b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138948] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f233e4a3967 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138949] RDX: 00000000000a8668 RSI: 00007ffdba69b0c0 RDI: 0000000000000000 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138950] RBP: 0000000049d03a44 R08: 00000000dced1167 R09: 0000000000000000 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138951] R10: 00007ffdba69b100 R11: 0000000000000246 R12: 000055e356928460 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138952] R13: 00000000ffffffff R14: 00000000000002c7 R15: 00000000dced1165 Jun 15 22:00:34 xps15-9550 kernel: [ 70.138953] Code: 63 d2 e8 89 65 34 00 3b 05 87 ff f4 00 89 c1 0f 8d bb fe ff ff 48 98 49 8b 16 48 03 14 c5 e0 c3 36 83 8b 42 18 a8 01 74 09 f3 90 <8b> 42 18 a8 01 75 f7 eb be 0f b6 4d d0 4c 89 ea 4c 89 e6 44 89 Jun 15 22:00:54 xps15-9550 update-notifier[4931]: GtkDialog mapped without a transient parent. This is discouraged. Jun 15 22:01:02 xps15-9550 kernel: [ 98.138756] NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [ntpdate:4027] Jun 15 22:01:02 xps15-9550 kernel: [ 98.138757] Modules linked in: msr cmac rfcomm xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c xt_tcpudp bridge stp llc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev btusb hid_multitouch btrtl media snd_hda_codec_hdmi bbswitch(OE) iptable_filter xt_owner bnep binfmt_misc dm_crypt snd_hda_codec_realtek snd_hda_codec_generic nls_iso8859_1 dell_wmi mxm_wmi snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm dell_laptop snd_seq_midi dell_smbios snd_seq_midi_event dcdbas intel_rapl x86_pkg_temp_thermal snd_rawmidi intel_powerclamp snd_seq kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd snd_seq_device Jun 15 22:01:02 xps15-9550 kernel: [ 98.138803] glue_helper snd_timer cryptd intel_cstate intel_rapl_perf input_leds brcmfmac brcmutil joydev cfg80211 snd rtsx_pci_ms serio_raw memstick hci_uart soundcore idma64 virt_dma btbcm serdev mei_me btqca processor_thermal_device btintel mei intel_lpss_pci intel_pch_thermal shpchp intel_soc_dts_iosf bluetooth int3403_thermal ecdh_generic wmi dell_smo8800 int3402_thermal intel_hid intel_lpss_acpi int340x_thermal_zone intel_lpss sparse_keymap mac_hid acpi_als int3400_thermal kfifo_buf acpi_thermal_rel industrialio acpi_pad coretemp parport_pc sunrpc ppdev lp parport ip_tables x_tables autofs4 btrfs xor raid6_pq uas usb_storage hid_logitech_hidpp hid_logitech_dj usbhid rtsx_pci_sdmmc i915 i2c_algo_bit drm_kms_helper syscopyarea psmouse sysfillrect sysimgblt fb_sys_fops nvme nvme_core drm ahci Jun 15 22:01:02 xps15-9550 kernel: [ 98.138849] rtsx_pci libahci i2c_hid hid pinctrl_sunrisepoint video pinctrl_intel [last unloaded: nvidia] Jun 15 22:01:02 xps15-9550 kernel: [ 98.138854] CPU: 2 PID: 4027 Comm: ntpdate Tainted: P D OEL 4.12.0-041200rc5-generic #201706112031 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138854] Hardware name: Dell Inc. XPS 15 9550/ , BIOS 1.2.25 05/07/2017 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138856] task: ffff9eff9a235c00 task.stack: ffffad2303374000 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138858] RIP: 0010:smp_call_function_many+0x1cb/0x230 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138859] RSP: 0018:ffffad2303377df8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138861] RAX: 0000000000000003 RBX: 0000000000000008 RCX: 0000000000000006 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138862] RDX: ffff9effbdda0598 RSI: 0000000000000000 RDI: ffff9effad022ad8 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138862] RBP: ffffad2303377e30 R08: ffffffffffffffc0 R09: 00000000000000fb Jun 15 22:01:02 xps15-9550 kernel: [ 98.138863] R10: ffffe365512f22c0 R11: 003b9aca00000000 R12: ffffffff826fbe80 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138864] R13: 0000000000000000 R14: ffff9effbdc9ce40 R15: 000000000001ce00 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138865] FS: 00007f233f2a2380(0000) GS:ffff9effbdc80000(0000) knlGS:0000000000000000 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138866] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138867] CR2: 00005607798d9000 CR3: 00000004a6080000 CR4: 00000000003406e0 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138868] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138869] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138870] Call Trace: Jun 15 22:01:02 xps15-9550 kernel: [ 98.138873] ? hrtimer_force_reprogram+0x90/0x90 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138875] on_each_cpu+0x2d/0x60 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138876] clock_was_set+0x1c/0x30 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138878] do_settimeofday64+0xf5/0x160 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138880] do_sys_settimeofday64+0xbb/0x110 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138881] posix_clock_realtime_set+0x13/0x20 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138883] SyS_clock_settime+0x85/0xd0 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138884] entry_SYSCALL_64_fastpath+0x1e/0xa9 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138885] RIP: 0033:0x7f233e4a3967 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138886] RSP: 002b:00007ffdba69b0b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138887] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f233e4a3967 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138888] RDX: 00000000000a8668 RSI: 00007ffdba69b0c0 RDI: 0000000000000000 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138889] RBP: 0000000049d03a44 R08: 00000000dced1167 R09: 0000000000000000 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138890] R10: 00007ffdba69b100 R11: 0000000000000246 R12: 000055e356928460 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138891] R13: 00000000ffffffff R14: 00000000000002c7 R15: 00000000dced1165 Jun 15 22:01:02 xps15-9550 kernel: [ 98.138892] Code: 63 d2 e8 89 65 34 00 3b 05 87 ff f4 00 89 c1 0f 8d bb fe ff ff 48 98 49 8b 16 48 03 14 c5 e0 c3 36 83 8b 42 18 a8 01 74 09 f3 90 <8b> 42 18 a8 01 75 f7 eb be 0f b6 4d d0 4c 89 ea 4c 89 e6 44 89 Jun 15 22:01:02 xps15-9550 kernel: [ 98.372799] INFO: rcu_sched detected stalls on CPUs/tasks: Jun 15 22:01:02 xps15-9550 kernel: [ 98.372805] 6-...: (1 GPs behind) idle=61e/140000000000000/0 softirq=9012/9012 fqs=6858 Jun 15 22:01:02 xps15-9550 kernel: [ 98.372806] (detected by 3, t=15002 jiffies, g=1590, c=1589, q=58546) Jun 15 22:01:02 xps15-9550 kernel: [ 98.372809] Sending NMI from CPU 3 to CPUs 6: Jun 15 22:01:02 xps15-9550 kernel: [ 98.373804] NMI backtrace for cpu 6 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373804] CPU: 6 PID: 4071 Comm: kworker/u16:7 Tainted: P D OEL 4.12.0-041200rc5-generic #201706112031 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373805] Hardware name: Dell Inc. XPS 15 9550/ , BIOS 1.2.25 05/07/2017 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373805] Workqueue: kacpi_hotplug acpi_hotplug_work_fn Jun 15 22:01:02 xps15-9550 kernel: [ 98.373806] task: ffff9effa611ae00 task.stack: ffffad230447c000 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373806] RIP: 0010:native_queued_spin_lock_slowpath+0x17b/0x1a0 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373806] RSP: 0018:ffffad230447f8d0 EFLAGS: 00000002 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373807] RAX: 0000000000000101 RBX: 0000000000000282 RCX: 0000000000000001 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373807] RDX: 0000000000000101 RSI: 0000000000000001 RDI: ffff9effaae04284 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373807] RBP: ffffad230447f8d0 R08: 0000000000000101 R09: ffff9effa093d898 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373807] R10: 0000000000000004 R11: 0000000000000000 R12: ffff9eff0dd47100 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373808] R13: ffff9eff9ded0000 R14: ffff9eff0dd47100 R15: ffff9effa093d800 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373808] FS: 0000000000000000(0000) GS:ffff9effbdd80000(0000) knlGS:0000000000000000 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373808] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373808] CR2: 00007f9e42073b04 CR3: 00000001faa09000 CR4: 00000000003406e0 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373809] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373809] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373809] Call Trace: Jun 15 22:01:02 xps15-9550 kernel: [ 98.373809] _raw_spin_lock_irqsave+0x37/0x3f Jun 15 22:01:02 xps15-9550 kernel: [ 98.373810] xhci_free_streams+0x72/0x370 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373810] ? kfree_const+0x21/0x30 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373810] usb_free_streams+0x71/0xd0 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373810] usb_unbind_interface+0x12e/0x260 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373810] device_release_driver_internal+0x155/0x210 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373811] device_release_driver+0x12/0x20 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373811] bus_remove_device+0xfd/0x170 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373811] device_del+0x1e2/0x320 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373811] ? usb_remove_ep_devs+0x1f/0x30 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373812] usb_disable_device+0x9e/0x270 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373812] usb_disconnect+0x92/0x270 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373812] usb_disconnect+0x1e9/0x270 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373812] usb_disconnect+0x1e9/0x270 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373812] usb_remove_hcd+0xc8/0x240 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373813] xhci_pci_remove+0x41/0x70 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373813] pci_device_remove+0x39/0xb0 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373813] device_release_driver_internal+0x155/0x210 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373813] device_release_driver+0x12/0x20 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373813] pci_stop_bus_device+0x8a/0xa0 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373814] pci_stop_and_remove_bus_device+0x12/0x20 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373814] trim_stale_devices+0x11c/0x150 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373814] trim_stale_devices+0x8c/0x150 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373814] trim_stale_devices+0x8c/0x150 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373815] acpiphp_check_bridge.part.7+0xeb/0x150 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373815] acpiphp_hotplug_notify+0x173/0x200 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373815] ? free_bridge+0x120/0x120 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373815] acpi_device_hotplug+0x9d/0x490 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373815] acpi_hotplug_work_fn+0x1e/0x30 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373816] process_one_work+0x1e9/0x410 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373816] worker_thread+0x4b/0x410 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373816] kthread+0x109/0x140 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373816] ? process_one_work+0x410/0x410 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373816] ? kthread_create_on_node+0x70/0x70 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373817] ? SyS_exit_group+0x14/0x20 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373817] ret_from_fork+0x25/0x30 Jun 15 22:01:02 xps15-9550 kernel: [ 98.373817] Code: c0 74 e6 4d 85 c9 c6 07 01 74 30 41 c7 41 08 01 00 00 00 e9 52 ff ff ff 83 fa 01 0f 84 b0 fe ff ff 8b 07 84 c0 74 08 f3 90 8b 07 <84> c0 75 f8 b8 01 00 00 00 66 89 07 5d c3 f3 90 4c 8b 09 4d 85
Jun 20 14:19:08 xps15-9550 kernel: [ 37.601524] xhci_hcd 0000:0a:00.0: xHCI host controller not responding, assume dead Jun 20 14:19:08 xps15-9550 kernel: [ 37.601552] xhci_hcd 0000:0a:00.0: Timeout while waiting for configure endpoint command Jun 20 14:19:08 xps15-9550 kernel: [ 37.601575] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030 Jun 20 14:19:08 xps15-9550 kernel: [ 37.601775] IP: xhci_kill_ring_urbs+0x16/0xd0 Jun 20 14:19:08 xps15-9550 kernel: [ 37.601851] PGD 0 Jun 20 14:19:08 xps15-9550 kernel: [ 37.601852] P4D 0 Jun 20 14:19:08 xps15-9550 kernel: [ 37.601880] Jun 20 14:19:08 xps15-9550 kernel: [ 37.601932] Oops: 0000 [#1] SMP Jun 20 14:19:08 xps15-9550 kernel: [ 37.601973] Modules linked in: msr cmac rfcomm xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c xt_tcpudp bridge stp llc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media btusb btrtl hid_multitouch iptable_filter xt_owner bnep bbswitch(OE) binfmt_misc dm_crypt nls_iso8859_1 dell_wmi mxm_wmi snd_hda_codec_hdmi snd_hda_codec_realtek intel_rapl snd_hda_codec_generic dell_laptop x86_pkg_temp_thermal dell_smbios intel_powerclamp dcdbas kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul snd_hda_intel ghash_clmulni_intel snd_hda_codec pcbc snd_hda_core snd_hwdep snd_pcm aesni_intel aes_x86_64 snd_seq_midi crypto_simd snd_seq_midi_event glue_helper cryptd snd_rawmidi Jun 20 14:19:08 xps15-9550 kernel: [ 37.603118] intel_cstate intel_rapl_perf snd_seq brcmfmac snd_seq_device brcmutil joydev input_leds snd_timer cfg80211 serio_raw rtsx_pci_ms memstick snd hci_uart idma64 btbcm virt_dma soundcore mei_me serdev processor_thermal_device btqca mei intel_pch_thermal intel_lpss_pci shpchp intel_soc_dts_iosf btintel bluetooth int3403_thermal intel_hid sparse_keymap ecdh_generic int3400_thermal acpi_als wmi acpi_thermal_rel int3402_thermal dell_smo8800 mac_hid intel_lpss_acpi int340x_thermal_zone kfifo_buf acpi_pad intel_lpss industrialio coretemp parport_pc ppdev lp sunrpc parport ip_tables x_tables autofs4 btrfs xor raid6_pq hid_logitech_hidpp hid_logitech_dj usbhid uas usb_storage rtsx_pci_sdmmc i915 i2c_algo_bit drm_kms_helper psmouse syscopyarea sysfillrect sysimgblt fb_sys_fops nvme drm ahci nvme_core Jun 20 14:19:08 xps15-9550 kernel: [ 37.603986] rtsx_pci libahci i2c_hid hid pinctrl_sunrisepoint video pinctrl_intel [last unloaded: nvidia] Jun 20 14:19:08 xps15-9550 kernel: [ 37.604147] CPU: 0 PID: 78 Comm: kworker/0:2 Tainted: P OE 4.12.0-041200rc5-generic #201706112031 Jun 20 14:19:08 xps15-9550 kernel: [ 37.604336] Hardware name: Dell Inc. XPS 15 9550/ , BIOS 1.2.25 05/07/2017 Jun 20 14:19:08 xps15-9550 kernel: [ 37.604514] Workqueue: events xhci_handle_command_timeout Jun 20 14:19:08 xps15-9550 kernel: [ 37.604598] task: ffff95deeaa6c500 task.stack: ffffbd2981bbc000 Jun 20 14:19:08 xps15-9550 kernel: [ 37.604689] RIP: 0010:xhci_kill_ring_urbs+0x16/0xd0 Jun 20 14:19:08 xps15-9550 kernel: [ 37.604733] RSP: 0018:ffffbd2981bbfd90 EFLAGS: 00010086 Jun 20 14:19:08 xps15-9550 kernel: [ 37.604779] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000004 Jun 20 14:19:08 xps15-9550 kernel: [ 37.604878] RDX: ffff95dee0818600 RSI: 0000000000000000 RDI: ffff95deead44238 Jun 20 14:19:08 xps15-9550 kernel: [ 37.604974] RBP: ffffbd2981bbfdb8 R08: 0000000000000002 R09: 0000000000000001 Jun 20 14:19:08 xps15-9550 kernel: [ 37.605054] R10: ffff95dedefc8180 R11: 0000000000000200 R12: ffff95deead44238 Jun 20 14:19:08 xps15-9550 kernel: [ 37.605137] R13: 0000000000000002 R14: 0000000000000030 R15: ffff95dedefc8180 Jun 20 14:19:08 xps15-9550 kernel: [ 37.605217] FS: 0000000000000000(0000) GS:ffff95defdc00000(0000) knlGS:0000000000000000 Jun 20 14:19:08 xps15-9550 kernel: [ 37.607679] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 20 14:19:08 xps15-9550 kernel: [ 37.609681] CR2: 0000000000000030 CR3: 00000001afc09000 CR4: 00000000003406f0 Jun 20 14:19:08 xps15-9550 kernel: [ 37.611559] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jun 20 14:19:08 xps15-9550 kernel: [ 37.613564] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jun 20 14:19:08 xps15-9550 kernel: [ 37.615508] Call Trace: Jun 20 14:19:08 xps15-9550 kernel: [ 37.617400] xhci_hc_died.part.56+0xd6/0x200 Jun 20 14:19:08 xps15-9550 kernel: [ 37.619314] xhci_handle_command_timeout+0x183/0x260 Jun 20 14:19:08 xps15-9550 kernel: [ 37.621130] process_one_work+0x1e9/0x410 Jun 20 14:19:08 xps15-9550 kernel: [ 37.622945] worker_thread+0x4b/0x410 Jun 20 14:19:08 xps15-9550 kernel: [ 37.624629] kthread+0x109/0x140 Jun 20 14:19:08 xps15-9550 kernel: [ 37.626366] ? process_one_work+0x410/0x410 Jun 20 14:19:08 xps15-9550 kernel: [ 37.627934] ? kthread_create_on_node+0x70/0x70 Jun 20 14:19:08 xps15-9550 kernel: [ 37.629540] ret_from_fork+0x25/0x30 Jun 20 14:19:08 xps15-9550 kernel: [ 37.631016] Code: 05 70 5f 74 00 eb d6 48 8b 05 67 5f 74 00 eb 87 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 4c 8d 76 30 53 <48> 8b 56 30 4c 39 f2 48 8b 0a 0f 84 95 00 00 00 49 89 fd 49 89 Jun 20 14:19:08 xps15-9550 kernel: [ 37.634059] RIP: xhci_kill_ring_urbs+0x16/0xd0 RSP: ffffbd2981bbfd90 Jun 20 14:19:08 xps15-9550 kernel: [ 37.635506] CR2: 0000000000000030 Jun 20 14:19:08 xps15-9550 kernel: [ 37.642675] ---[ end trace 005b4f2134d05e30 ]---
