Please test 20.04.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1819924
Title:
System hangs when hot-plugging dual monitor dock
Status in linux package in Ubuntu:
Incomplete
Bug description:
When plugging in my Cable Matters USB-C Dual 4K DisplayPort Docking
Station into my system, after it has already booted, the system hangs
with a kernel OOPS. This is always repeatable.
Steps to reproduce:
1. Ensure docking station is unplugged or shut-off.
2. Boot up computer.
3. Turn-on docking station and plug into to system.
If the docking station is plugged in before the system boots, it works
fine. It can even be unpluged and hot-plugged without issue at that
point.
This kernel Oops occurs when the system hangs:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000320
PGD 0 P4D 0
SMP NOPTI
CPU: 3 PID: 84 Comm: kworker/3:1 Tainted: G D OE
4.18.0-16-generic #17-Ubuntu
Hardware name: HP HP EliteBook 755 G5/83D5, BIOS Q81 Ver. 01.04.01 09/13/2018
Workqueue: events_long drm_dp_mst_link_probe_work [drm_kms_helper]
RIP: 0010:mutex_lock+0x1d/0x30
Code: 5d c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 53 48
89 fb e8 8e df ff ff 31 c0 65 48 8b 14 25 00 5c 01 00 <f0> 48 0f b1 13 74 08 48
89 df e8 b4 ff ff ff 5b 5d c3 90 0f 1f 44
RSP: 0018:ffffb6c0c1efbd78 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000320 RCX: ffff8ed7cfb5c800
RDX: ffff8ed7d3830000 RSI: 0000000000000202 RDI: 0000000000000320
RBP: ffffb6c0c1efbd80 R08: 0000000000000201 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8ed7df6e1ac8 R12: 0000000000000000
R13: ffff8ed7cfb5c468 R14: ffff8ed7d3b33f60 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8ed7df6c0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000320 CR3: 00000003b5d6e000 CR4: 00000000003406a0
Call Trace:
drm_dp_mst_wait_tx_reply+0x155/0x1f0 [drm_kms_helper]
? wait_woken+0x80/0x80
drm_dp_send_enum_path_resources.isra.24+0x69/0xf0 [drm_kms_helper]
drm_dp_check_and_send_link_address+0xa1/0xd0 [drm_kms_helper]
drm_dp_mst_link_probe_work+0x4f/0x80 [drm_kms_helper]
process_one_work+0x20f/0x410
worker_thread+0x34/0x400
kthread+0x120/0x140
? pwq_unbound_release_workfn+0xd0/0xd0
? kthread_bind+0x40/0x40
ret_from_fork+0x22/0x40
Modules linked in: snd_usb_audio snd_usbmidi_lib usbhid cdc_ether uas usbnet
usb_storage r8152 rfcomm binfmt_misc ccm cmac bnep btusb btrtl btbcm btintel
bluetooth ecdh_generic uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_common videodev media evdi(OE) nfc arc4 joydev
nls_iso8859_1 snd_hda_codec_conexant snd_hda_codec_generic snd_hda_codec_hdmi
snd_hda_intel snd_hda_codec edac_mce_amd snd_hda_core snd_hwdep kvm_amd ccp kvm
irqbypass snd_pcm crct10dif_pclmul iwlmvm crc32_pclmul ghash_clmulni_intel pcbc
snd_seq_midi snd_seq_midi_event mac80211 snd_rawmidi snd_seq snd_seq_device
snd_timer iwlwifi aesni_intel snd hp_wmi aes_x86_64 crypto_simd cryptd
input_leds glue_helper wmi_bmof serio_raw sparse_keymap hid_multitouch k10temp
soundcore cfg80211 ipmi_devintf ipmi_msghandler
ucsi_acpi typec_ucsi typec mac_hid hp_wireless sch_fq_codel parport_pc ppdev
lp parport ip_tables x_tables autofs4 hid_generic amdkfd amd_iommu_v2 amdgpu
chash gpu_sched i2c_algo_bit ttm nvme drm_kms_helper syscopyarea sysfillrect
sysimgblt fb_sys_fops psmouse drm ahci libahci r8169 nvme_core i2c_piix4 mii
i2c_hid wmi hid video
CR2: 0000000000000320
---[ end trace 3aa69f7fb354f0c1 ]---
BUG: unable to handle kernel NULL pointer dereference at 0000000000000320
PGD 0 P4D 0
RIP: 0010:queue_work_on+0x1b/0x40
Code:
SMP NOPTI
CPU: 0 PID: 974 Comm: Xorg Tainted: G D OE 4.18.0-16-generic
#17-Ubuntu
Hardware name: HP HP EliteBook 755 G5/83D5, BIOS Q81 Ver. 01.04.01 09/13/2018
RIP: 0010:mutex_lock+0x1d/0x30
Code: 5d c3
58
66 66 2e 0f
01 01 e8 69
1f 84 00
27 fe ff
00
0f 0b e9
00
b5 fc ff
00
ff 0f 1f
00
44 00 00
0f
55 48 89 e5
1f 44 00
53
00 55 48
9c
89 e5 53
58 0f 1f
48
44 00 00 48
89 fb e8
89 c3 fa
8e
66 0f 1f
df
44 00 00 <f0>
ff
48 0f ba 2a
ff 31 c0
00
65 48 8b
73 11 31 c9
14 25 00
48 89 df 57
5c 01 00
9d 0f 1f
<f0>
44 00 00 89
48 0f b1
c8
RSP: 0018:ffffb6c0c2063c98 EFLAGS: 00010002
13
RAX: 0000000000000202 RBX: 0000000000000202 RCX: 0000000000000000
74 08 48 89
RDX: 00000000000003a8 RSI: ffff8ed7df019000 RDI: 0000000000002000
df e8 b4
RBP: ffffb6c0c2063ca0 R08: 0000000000027080 R09: ffffffffa25d9e13
R10: fffffa628ed74840 R11: 0000000000000036 R12: ffff8ed7cfb5c5e6
R13: ffff8ed7801fa800 R14: 0000000000000001 R15: ffff8ed7d3b33f60
FS: 0000000000000000(0000) GS:ffff8ed7df6c0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000320 CR3: 00000003b5d6e000 CR4: 00000000003406a0
ff ff ff 5b 5d c3 90 0f 1f 44
RSP: 0018:ffffb6c0c2b3b858 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000320 RCX: ffff8ed7cfb5c800
RDX: ffff8ed7da888000 RSI: 0000000000000206 RDI: 0000000000000320
RBP: ffffb6c0c2b3b860 R08: 0000000000000206 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8ed7df621ac8 R12: 0000000000000000
R13: ffff8ed7cfb5c468 R14: ffff8ed7d3b33f60 R15: 0000000000000000
FS: 00007f9cc3b65a80(0000) GS:ffff8ed7df600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000320 CR3: 000000041a814000 CR4: 00000000003406b0
Call Trace:
drm_dp_mst_wait_tx_reply+0x155/0x1f0 [drm_kms_helper]
? wait_woken+0x80/0x80
drm_dp_mst_i2c_xfer+0x1b8/0x270 [drm_kms_helper]
__i2c_transfer+0x119/0x410
? _cond_resched+0x19/0x30
i2c_transfer+0x5a/0xd0
drm_do_probe_ddc_edid+0xbe/0x140 [drm]
drm_get_edid+0x51/0x390 [drm]
? _cond_resched+0x19/0x30
drm_dp_mst_get_edid+0x6f/0x90 [drm_kms_helper]
dm_dp_mst_get_modes+0x8a/0x140 [amdgpu]
? drm_helper_probe_detect+0x78/0xa0 [drm_kms_helper]
drm_helper_probe_single_connector_modes+0x18b/0x700 [drm_kms_helper]
drm_mode_getconnector+0x40e/0x440 [drm]
? drm_mode_connector_property_set_ioctl+0x60/0x60 [drm]
drm_ioctl_kernel+0xa4/0xf0 [drm]
drm_ioctl+0x227/0x400 [drm]
? drm_mode_connector_property_set_ioctl+0x60/0x60 [drm]
amdgpu_drm_ioctl+0x4f/0x90 [amdgpu]
do_vfs_ioctl+0xa8/0x620
ksys_ioctl+0x67/0x90
__x64_sys_ioctl+0x1a/0x20
do_syscall_64+0x5a/0x110
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f9cc4e9c3c7
Code: 00 00 90 48 8b 05 c9 3a 0d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff
c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01
c3 48 8b 0d 99 3a 0d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffecec1ff28 EFLAGS: 00003246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00005601df01d790 RCX: 00007f9cc4e9c3c7
RDX: 00007ffecec1ff60 RSI: 00000000c05064a7 RDI: 000000000000000d
RBP: 00007ffecec1ff60 R08: 00005601df01b0a0 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000003246 R12: 00000000c05064a7
R13: 000000000000000d R14: 000000000000000d R15: 00007ffecec1ff60
Modules linked in: snd_usb_audio snd_usbmidi_lib usbhid cdc_ether uas usbnet
usb_storage r8152 rfcomm binfmt_misc ccm cmac bnep btusb btrtl btbcm btintel
bluetooth ecdh_generic uvcvideo videobuf2_vmalloc videobuf2_memops
videobuf2_v4l2 videobuf2_common videodev media evdi(OE) nfc arc4 joydev
nls_iso8859_1 snd_hda_codec_conexant snd_hda_codec_generic snd_hda_codec_hdmi
snd_hda_intel snd_hda_codec edac_mce_amd snd_hda_core snd_hwdep kvm_amd ccp kvm
irqbypass snd_pcm crct10dif_pclmul iwlmvm crc32_pclmul ghash_clmulni_intel pcbc
snd_seq_midi snd_seq_midi_event mac80211 snd_rawmidi snd_seq snd_seq_device
snd_timer iwlwifi aesni_intel snd hp_wmi aes_x86_64 crypto_simd cryptd
input_leds glue_helper wmi_bmof serio_raw sparse_keymap hid_multitouch k10temp
soundcore cfg80211 ipmi_devintf ipmi_msghandler
ucsi_acpi typec_ucsi typec mac_hid hp_wireless sch_fq_codel parport_pc ppdev
lp parport ip_tables x_tables autofs4 hid_generic amdkfd amd_iommu_v2 amdgpu
chash gpu_sched i2c_algo_bit ttm nvme drm_kms_helper syscopyarea sysfillrect
sysimgblt fb_sys_fops psmouse drm ahci libahci r8169 nvme_core i2c_piix4 mii
i2c_hid wmi hid video
CR2: 0000000000000320
---[ end trace 3aa69f7fb354f0c2 ]---
RIP: 0010:queue_work_on+0x1b/0x40
Code: 58 01 01 e8 69 27 fe ff 0f 0b e9 b5 fc ff ff 0f 1f 44 00 00 55 48 89 e5
53 9c 58 0f 1f 44 00 00 48 89 c3 fa 66 0f 1f 44 00 00 <f0> 48 0f ba 2a 00 73 11
31 c9 48 89 df 57 9d 0f 1f 44 00 00 89 c8
RSP: 0018:ffffb6c0c2063c98 EFLAGS: 00010002
RAX: 0000000000000202 RBX: 0000000000000202 RCX: 0000000000000000
RDX: 00000000000003a8 RSI: ffff8ed7df019000 RDI: 0000000000002000
RBP: ffffb6c0c2063ca0 R08: 0000000000027080 R09: ffffffffa25d9e13
R10: fffffa628ed74840 R11: 0000000000000036 R12: ffff8ed7cfb5c5e6
R13: ffff8ed7801fa800 R14: 0000000000000001 R15: ffff8ed7d3b33f60
FS: 00007f9cc3b65a80(0000) GS:ffff8ed7df600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000320 CR3: 000000041a814000 CR4: 00000000003406b0
This issue appears to be related to bug 107738, found upstream in the
drm kernel module
(https://bugs.freedesktop.org/show_bug.cgi?id=107738). However, the
fix for that bug appears to have already been committed downstream,
however this bug is still occurring for me.
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: linux-image-4.18.0-16-generic 4.18.0-16.17
ProcVersionSignature: Ubuntu 4.18.0-16.17-generic 4.18.20
Uname: Linux 4.18.0-16-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: bernie 2029 F.... pulseaudio
/dev/snd/controlC1: bernie 2029 F.... pulseaudio
/dev/snd/controlC0: bernie 2029 F.... pulseaudio
CurrentDesktop: KDE
Date: Wed Mar 13 10:21:30 2019
InstallationDate: Installed on 2019-03-10 (3 days ago)
InstallationMedia: Kubuntu 18.10 "Cosmic Cuttlefish" - Release amd64
(20181017.2)
MachineType: HP HP EliteBook 755 G5
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-16-generic
root=UUID=b1aeec1e-bc30-4b40-a818-f9bf0e603915 ro mce=off iommu=soft quiet
splash vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.18.0-16-generic N/A
linux-backports-modules-4.18.0-16-generic N/A
linux-firmware 1.175
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/13/2018
dmi.bios.vendor: HP
dmi.bios.version: Q81 Ver. 01.04.01
dmi.board.name: 83D5
dmi.board.vendor: HP
dmi.board.version: KBC Version 08.47.00
dmi.chassis.asset.tag: 5CG9082GFP
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrQ81Ver.01.04.01:bd09/13/2018:svnHP:pnHPEliteBook755G5:pvr:rvnHP:rn83D5:rvrKBCVersion08.47.00:cvnHP:ct10:cvr:
dmi.product.family: 103C_5336AN HP EliteBook
dmi.product.name: HP EliteBook 755 G5
dmi.product.sku: 4HZ53UT#ABA
dmi.sys.vendor: HP
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