I intend to do this, but I expect it to eat up a few hours of time so
just haven't gotten around to it.

On Wed, May 30, 2018 at 01:50:18PM -0000, Christopher M. Penalver wrote:
> Anders Kvist:
> >"Christopher, I believe the solution is in the redhat bug mentioned earlier. 
> https://bugzilla.redhat.com/show_bug.cgi?id=1565131";
> 
> What is most helpful is if one confirms with their hardware via adding
> and reverting the potential fix commit that it does indeed address their
> issue.
> 

-- 
fREW Schmidt
https://blog.afoolishmanifesto.com

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https://bugs.launchpad.net/bugs/1767452

Title:
  kernel oops when I undocked

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Here's a snippet from the kernel log which I think will make the
  actual issue clear:

  Apr 27 09:49:20 caliburn kernel: [ 4558.910412] pcieport 0000:0a:03.0: 
Refused to change power state, currently in D3
  Apr 27 09:49:20 caliburn kernel: [ 4558.917717] xhci_hcd 0000:0d:00.0: 
remove, state 1
  Apr 27 09:49:20 caliburn kernel: [ 4558.917724] usb usb6: USB disconnect, 
device number 1
  Apr 27 09:49:20 caliburn kernel: [ 4558.917725] usb 6-1: USB disconnect, 
device number 2
  Apr 27 09:49:20 caliburn kernel: [ 4558.917774] xhci_hcd 0000:0d:00.0: xHCI 
host controller not responding, assume dead
  Apr 27 09:49:20 caliburn kernel: [ 4558.968688] xhci_hcd 0000:0d:00.0: USB 
bus 6 deregistered
  Apr 27 09:49:20 caliburn kernel: [ 4558.968694] xhci_hcd 0000:0d:00.0: 
remove, state 1
  Apr 27 09:49:20 caliburn kernel: [ 4558.968700] usb usb5: USB disconnect, 
device number 1
  Apr 27 09:49:20 caliburn kernel: [ 4558.968701] usb 5-3: USB disconnect, 
device number 3
  Apr 27 09:49:20 caliburn kernel: [ 4559.076020] usb 5-4: USB disconnect, 
device number 4
  Apr 27 09:49:20 caliburn kernel: [ 4559.076023] usb 5-4.2: USB disconnect, 
device number 5
  Apr 27 09:49:20 caliburn kernel: [ 4559.123365] usb 5-4.4: USB disconnect, 
device number 7
  Apr 27 09:49:20 caliburn kernel: [ 4559.125340] xhci_hcd 0000:0d:00.0: Host 
halt failed, -19
  Apr 27 09:49:20 caliburn kernel: [ 4559.125343] xhci_hcd 0000:0d:00.0: Host 
not accessible, reset failed.
  Apr 27 09:49:20 caliburn kernel: [ 4559.125467] xhci_hcd 0000:0d:00.0: USB 
bus 5 deregistered
  Apr 27 09:49:21 caliburn kernel: [ 4559.146170] pcieport 0000:0a:02.0: 
Refused to change power state, currently in D3
  Apr 27 09:49:21 caliburn kernel: [ 4559.147809] pcieport 0000:0a:01.0: 
Refused to change power state, currently in D3
  Apr 27 09:49:21 caliburn kernel: [ 4559.149445] xhci_hcd 0000:0b:00.0: 
remove, state 4
  Apr 27 09:49:21 caliburn kernel: [ 4559.149451] usb usb4: USB disconnect, 
device number 1
  Apr 27 09:49:21 caliburn kernel: [ 4559.149700] xhci_hcd 0000:0b:00.0: USB 
bus 4 deregistered
  Apr 27 09:49:21 caliburn kernel: [ 4559.149706] xhci_hcd 0000:0b:00.0: xHCI 
host controller not responding, assume dead
  Apr 27 09:49:21 caliburn kernel: [ 4559.149718] xhci_hcd 0000:0b:00.0: 
remove, state 1
  Apr 27 09:49:21 caliburn kernel: [ 4559.149722] usb usb3: USB disconnect, 
device number 1
  Apr 27 09:49:21 caliburn kernel: [ 4559.149724] usb 3-1: USB disconnect, 
device number 2
  Apr 27 09:49:21 caliburn kernel: [ 4559.206497] usb 3-2: USB disconnect, 
device number 3
  Apr 27 09:49:21 caliburn kernel: [ 4559.462604] usb 3-4: USB disconnect, 
device number 4
  Apr 27 09:49:21 caliburn kernel: [ 4559.464185] BUG: unable to handle kernel 
NULL pointer dereference at 0000000000000034
  Apr 27 09:49:21 caliburn kernel: [ 4559.464193] IP: 
tty_unregister_driver+0xd/0x70
  Apr 27 09:49:21 caliburn kernel: [ 4559.464195] PGD 0 P4D 0 
  Apr 27 09:49:21 caliburn kernel: [ 4559.464197] Oops: 0000 [#1] SMP PTI
  Apr 27 09:49:21 caliburn kernel: [ 4559.464199] Modules linked in: veth 
ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user 
xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype 
iptable_filter xt_conntrack nf_nat nf_conntrack libcrc32c br_netfilter bridge 
stp llc overlay hid_led hid_generic snd_usb_audio snd_usbmidi_lib usbhid 
cdc_ether usbnet r8152 mii bnep nls_iso8859_1 snd_soc_skl snd_soc_skl_ipc 
snd_seq_midi snd_hda_ext_core snd_seq_midi_event arc4 snd_soc_sst_dsp 
intel_rapl snd_soc_sst_ipc snd_rawmidi x86_pkg_temp_thermal snd_soc_acpi 
intel_powerclamp snd_hda_codec_hdmi coretemp snd_hda_codec_conexant 
snd_hda_codec_generic kvm_intel snd_soc_core snd_compress ac97_bus kvm 
snd_pcm_dmaengine snd_seq irqbypass intel_cstate intel_rapl_perf snd_hda_intel 
joydev uvcvideo input_leds
  Apr 27 09:49:21 caliburn kernel: [ 4559.464233]  serio_raw snd_hda_codec 
thinkpad_acpi videobuf2_vmalloc videobuf2_memops nvram videobuf2_v4l2 iwlmvm 
snd_hda_core snd_hwdep videobuf2_core wmi_bmof intel_wmi_thunderbolt snd_pcm 
mac80211 snd_seq_device snd_timer videodev btusb media btrtl btbcm btintel 
iwlwifi mei_me bluetooth cfg80211 rtsx_pci_ms memstick snd ecdh_generic mei 
ucsi_acpi typec_ucsi intel_pch_thermal typec shpchp soundcore tpm_crb mac_hid 
acpi_pad sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 
algif_skcipher af_alg dm_crypt rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel pcbc i915 aesni_intel i2c_algo_bit aes_x86_64 
drm_kms_helper crypto_simd e1000e glue_helper cryptd syscopyarea psmouse 
sysfillrect sysimgblt nvme ptp fb_sys_fops pps_core thunderbolt nvme_core drm 
rtsx_pci wmi i2c_hid
  Apr 27 09:49:21 caliburn kernel: [ 4559.464273]  video hid
  Apr 27 09:49:21 caliburn kernel: [ 4559.464276] CPU: 1 PID: 35555 Comm: 
kworker/u8:1 Not tainted 4.15.0-20-generic #21-Ubuntu
  Apr 27 09:49:21 caliburn kernel: [ 4559.464278] Hardware name: LENOVO 
20HR000FUS/20HR000FUS, BIOS N1MET39W (1.24 ) 09/27/2017
  Apr 27 09:49:21 caliburn kernel: [ 4559.464281] Workqueue: kacpi_hotplug 
acpi_hotplug_work_fn
  Apr 27 09:49:21 caliburn kernel: [ 4559.464285] RIP: 
0010:tty_unregister_driver+0xd/0x70
  Apr 27 09:49:21 caliburn kernel: [ 4559.464286] RSP: 0000:ffffb5964451faf0 
EFLAGS: 00010246
  Apr 27 09:49:21 caliburn kernel: [ 4559.464288] RAX: 0000000000000000 RBX: 
0000000000000000 RCX: 0000000000000000
  Apr 27 09:49:21 caliburn kernel: [ 4559.464289] RDX: ffff8e754ba5de00 RSI: 
ffffee6c52323ac0 RDI: 0000000000000000
  Apr 27 09:49:21 caliburn kernel: [ 4559.464290] RBP: ffffb5964451faf8 R08: 
ffff8e754c8eb908 R09: 00000001801e0017
  Apr 27 09:49:21 caliburn kernel: [ 4559.464292] R10: ffffee6c5228a800 R11: 
0000000000000000 R12: ffff8e754b060230
  Apr 27 09:49:21 caliburn kernel: [ 4559.464293] R13: ffff8e754b06027c R14: 
ffff8e754b060390 R15: 0000000000000060
  Apr 27 09:49:21 caliburn kernel: [ 4559.464294] FS:  0000000000000000(0000) 
GS:ffff8e7561480000(0000) knlGS:0000000000000000
  Apr 27 09:49:21 caliburn kernel: [ 4559.464296] CS:  0010 DS: 0000 ES: 0000 
CR0: 0000000080050033
  Apr 27 09:49:21 caliburn kernel: [ 4559.464297] CR2: 0000000000000034 CR3: 
000000048280a005 CR4: 00000000003606e0
  Apr 27 09:49:21 caliburn kernel: [ 4559.464299] DR0: 0000000000000000 DR1: 
0000000000000000 DR2: 0000000000000000
  Apr 27 09:49:21 caliburn kernel: [ 4559.464300] DR3: 0000000000000000 DR6: 
00000000fffe0ff0 DR7: 0000000000000400
  Apr 27 09:49:21 caliburn kernel: [ 4559.464300] Call Trace:
  Apr 27 09:49:21 caliburn kernel: [ 4559.464305]  
xhci_dbc_tty_unregister_driver+0x15/0x30
  Apr 27 09:49:21 caliburn kernel: [ 4559.464307]  xhci_dbc_exit+0x2e/0x50
  Apr 27 09:49:21 caliburn kernel: [ 4559.464309]  xhci_stop+0x5b/0x1e0
  Apr 27 09:49:21 caliburn kernel: [ 4559.464312]  usb_remove_hcd+0x105/0x250
  Apr 27 09:49:21 caliburn kernel: [ 4559.464314]  usb_hcd_pci_remove+0x74/0x130
  Apr 27 09:49:21 caliburn kernel: [ 4559.464317]  xhci_pci_remove+0x6b/0x70
  Apr 27 09:49:21 caliburn kernel: [ 4559.464320]  pci_device_remove+0x3e/0xb0
  Apr 27 09:49:21 caliburn kernel: [ 4559.464323]  
device_release_driver_internal+0x15b/0x220
  Apr 27 09:49:21 caliburn kernel: [ 4559.464325]  
device_release_driver+0x12/0x20
  Apr 27 09:49:21 caliburn kernel: [ 4559.464328]  pci_stop_bus_device+0x7f/0xa0
  Apr 27 09:49:21 caliburn kernel: [ 4559.464330]  pci_stop_bus_device+0x30/0xa0
  Apr 27 09:49:21 caliburn kernel: [ 4559.464333]  pci_stop_bus_device+0x41/0xa0
  Apr 27 09:49:21 caliburn kernel: [ 4559.464335]  
pci_stop_and_remove_bus_device+0x12/0x20
  Apr 27 09:49:21 caliburn kernel: [ 4559.464338]  
trim_stale_devices+0x11d/0x150
  Apr 27 09:49:21 caliburn kernel: [ 4559.464340]  trim_stale_devices+0xa9/0x150
  Apr 27 09:49:21 caliburn kernel: [ 4559.464342]  trim_stale_devices+0xbb/0x150
  Apr 27 09:49:21 caliburn kernel: [ 4559.464343]  ? get_slot_status+0xa3/0xe0
  Apr 27 09:49:21 caliburn kernel: [ 4559.464346]  
acpiphp_check_bridge.part.7+0x100/0x140
  Apr 27 09:49:21 caliburn kernel: [ 4559.464348]  
acpiphp_hotplug_notify+0x18e/0x220
  Apr 27 09:49:21 caliburn kernel: [ 4559.464349]  ? free_bridge+0x100/0x100
  Apr 27 09:49:21 caliburn kernel: [ 4559.464351]  
acpi_device_hotplug+0xa4/0x4b0
  Apr 27 09:49:21 caliburn kernel: [ 4559.464353]  
acpi_hotplug_work_fn+0x1e/0x30
  Apr 27 09:49:21 caliburn kernel: [ 4559.464356]  process_one_work+0x1de/0x410
  Apr 27 09:49:21 caliburn kernel: [ 4559.464358]  worker_thread+0x32/0x410
  Apr 27 09:49:21 caliburn kernel: [ 4559.464360]  kthread+0x121/0x140
  Apr 27 09:49:21 caliburn kernel: [ 4559.464362]  ? 
process_one_work+0x410/0x410
  Apr 27 09:49:21 caliburn kernel: [ 4559.464364]  ? 
kthread_create_worker_on_cpu+0x70/0x70
  Apr 27 09:49:21 caliburn kernel: [ 4559.464367]  ? do_syscall_64+0x73/0x130
  Apr 27 09:49:21 caliburn kernel: [ 4559.464369]  ? SyS_exit_group+0x14/0x20
  Apr 27 09:49:21 caliburn kernel: [ 4559.464371]  ret_from_fork+0x35/0x40
  Apr 27 09:49:21 caliburn kernel: [ 4559.464372] Code: c2 bf 2c 54 b4 48 c7 c7 
90 0d a4 b4 e8 ed 92 ee ff 48 89 df e8 85 c7 c6 ff 5b 5d c3 66 90 0f 1f 44 00 
00 55 48 89 e5 53 48 89 fb <8b> 77 34 8b 7f 2c c1 e7 14 0b 7b 30 e8 22 15 ca ff 
48 c7 c7 e0 
  Apr 27 09:49:21 caliburn kernel: [ 4559.464396] RIP: 
tty_unregister_driver+0xd/0x70 RSP: ffffb5964451faf0
  Apr 27 09:49:21 caliburn kernel: [ 4559.464396] CR2: 0000000000000034
  Apr 27 09:49:21 caliburn kernel: [ 4559.464398] ---[ end trace 
eca0969987c11306 ]---
  Apr 27 09:49:21 caliburn kernel: [ 4559.515107] thinkpad_acpi: EC reports 
that Thermal Table has changed
  Apr 27 09:49:22 caliburn kernel: [ 4560.472897] audit: type=1107 
audit(1524847762.333:50): pid=937 uid=103 auid=4294967295 ses=4294967295 
msg='apparmor="DENIED" operation="dbus_signal"  bus="system" 
path="/org/freedesktop/login1" interface="org.freedesktop.login1.Manager" 
member="PrepareForSleep" name=":1.10" mask="receive" pid=4254 
label="snap.keepassxc.keepassxc" peer_pid=899 peer_label="unconfined"
  Apr 27 09:49:22 caliburn kernel: [ 4560.472897]  exe="/usr/bin/dbus-daemon" 
sauid=103 hostname=? addr=? terminal=?'
  Apr 27 09:49:22 caliburn kernel: [ 4560.947925] PM: suspend entry (deep)

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-20-generic 4.15.0-20.21
  ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
  Uname: Linux 4.15.0-20-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  Date: Fri Apr 27 10:31:58 2018
  InstallationDate: Installed on 2018-04-27 (0 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  SourcePackage: linux-signed
  UpgradeStatus: No upgrade log present (probably fresh install)

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