[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
Please test latest mainline kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8-rc3/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
It had actually been working fine in 20.04 until a recent kernel update to 5.4.0-33.37. Since the update, it always fails with this stack trace: [140594.217061] [ cut here ] [140594.217062] sysfs group 'power' not found for kobject 'i2c-11' [140594.217079] WARNING: CPU: 5 PID: 64631 at fs/sysfs/group.c:279 sysfs_remove_group+0x7c/0x80 [140594.217080] Modules linked in: vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) binfmt_misc ccm rfcomm cmac algif_hash algif_skcipher af_alg cdc_ether usbnet r8152 mii snd_usb_audio snd_usbmidi_lib bnep bonding btusb btrtl btbcm btintel bluetooth ecdh_generic ecc evdi(OE) aufs uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common overlay nls_iso8859_1 snd_hda_codec_conexant snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd iwlmvm edac_mce_amd mac80211 kvm_amd ccp soundcore libarc4 kvm iwlwifi input_leds joydev serio_raw hp_wmi sparse_keymap ipmi_devintf wmi_bmof hid_multitouch k10temp cfg80211 ipmi_msghandler ucsi_acpi typec_ucsi typec hp_wireless mac_hid sch_fq_codel v4l2loopback(OE) videodev mc parport_pc ppdev lp parport ip_tables x_tables autofs4 uas usb_storage raid10 raid456 async_raid6_recov async_memcpy [140594.217138] async_pq async_xor async_tx xor usbhid raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul hid_generic ghash_clmulni_intel amdgpu amd_iommu_v2 gpu_sched i2c_algo_bit ttm nvme aesni_intel drm_kms_helper syscopyarea sysfillrect crypto_simd sysimgblt i2c_hid fb_sys_fops hid ahci psmouse drm cryptd libahci i2c_piix4 glue_helper nvme_core r8169 realtek wmi video i2c_amd_mp2_plat i2c_amd_mp2_pci [140594.217167] CPU: 5 PID: 64631 Comm: kworker/5:0 Tainted: G OE 5.4.0-33-generic #37-Ubuntu [140594.217169] Hardware name: HP HP EliteBook 755 G5/83D5, BIOS Q81 Ver. 01.10.00 01/03/2020 [140594.217183] Workqueue: events drm_dp_destroy_connector_work [drm_kms_helper] [140594.217187] RIP: 0010:sysfs_remove_group+0x7c/0x80 [140594.217191] Code: e7 e8 98 b9 ff ff 5b 41 5c 41 5d 5d c3 4c 89 e7 e8 e9 b4 ff ff eb c9 49 8b 55 00 48 8b 33 48 c7 c7 40 d4 58 a5 e8 4f 90 d1 ff <0f> 0b eb d8 0f 1f 44 00 00 48 85 f6 74 37 55 48 89 e5 41 55 41 54 [140594.217192] RSP: 0018:b1ea82f3fc00 EFLAGS: 00010286 [140594.217194] RAX: RBX: a52f3b60 RCX: 0006 [140594.217196] RDX: 0007 RSI: 0096 RDI: 9085dfd578c0 [140594.217197] RBP: b1ea82f3fc18 R08: 0851 R09: 0004 [140594.217198] R10: R11: 0001 R12: [140594.217199] R13: 9082e1c93800 R14: c0327140 R15: c0327140 [140594.217201] FS: () GS:9085dfd4() knlGS: [140594.217202] CS: 0010 DS: ES: CR0: 80050033 [140594.217204] CR2: 7f81ed808000 CR3: 00041687e000 CR4: 003406a0 [140594.217205] Call Trace: [140594.217213] dpm_sysfs_remove+0x59/0x60 [140594.217217] device_del+0x85/0x370 [140594.217220] ? class_find_device+0x97/0xf0 [140594.217223] device_unregister+0x1b/0x60 [140594.217226] device_destroy+0x4b/0x70 [140594.217229] i2cdev_detach_adapter+0x58/0x90 [140594.217231] i2cdev_notifier_call+0x21/0x40 [140594.217235] notifier_call_chain+0x55/0x80 [140594.217238] blocking_notifier_call_chain+0x50/0x70 [140594.217241] device_del+0x7d/0x370 [140594.217244] device_unregister+0x1b/0x60 [140594.217247] i2c_del_adapter+0x238/0x300 [140594.217257] drm_dp_port_teardown_pdt+0x1f/0x40 [drm_kms_helper] [140594.217267] drm_dp_destroy_connector_work+0xa3/0x110 [drm_kms_helper] [140594.217271] process_one_work+0x1eb/0x3b0 [140594.217274] worker_thread+0x4d/0x400 [140594.217277] kthread+0x104/0x140 [140594.217279] ? process_one_work+0x3b0/0x3b0 [140594.217281] ? kthread_park+0x90/0x90 [140594.217285] ret_from_fork+0x22/0x40 [140594.217288] ---[ end trace 854f992547f30c28 ]--- [140594.217339] [ cut here ] [140594.217340] sysfs group 'power' not found for kobject 'i2c-11' [140594.217352] WARNING: CPU: 5 PID: 64631 at fs/sysfs/group.c:279 sysfs_remove_group+0x7c/0x80 [140594.217352] Modules linked in: vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) binfmt_misc ccm rfcomm cmac algif_hash algif_skcipher af_alg cdc_ether usbnet r8152 mii snd_usb_audio snd_usbmidi_lib bnep bonding btusb btrtl btbcm btintel bluetooth ecdh_generic ecc evdi(OE) aufs uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common overlay nls_iso8859_1 snd_hda_codec_conexant snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd iwlmvm edac_mce_amd mac80211 kvm_amd ccp
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
Please test 20.04. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
Issue still remains with the mainline kernel. The contents of the kernel Oops message differs slightly, but still very similar: [ 27.532858] BUG: unable to handle kernel NULL pointer dereference at 03e8 [ 27.532862] #PF error: [WRITE] [ 27.532865] PGD 0 P4D 0 [ 27.532869] Oops: 0002 [#1] SMP NOPTI [ 27.532873] CPU: 3 PID: 82 Comm: kworker/3:1 Not tainted 5.1.0-050100rc3-generic #201904010618 [ 27.532875] Hardware name: HP HP EliteBook 755 G5/83D5, BIOS Q81 Ver. 01.04.01 09/13/2018 [ 27.532982] Workqueue: events dm_irq_work_func [amdgpu] [ 27.532989] RIP: 0010:queue_work_on+0x1b/0x40 [ 27.532992] Code: 75 01 01 e8 f9 13 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 48 0f ba 2a 00 73 11 31 c9 48 89 df 57 9d 0f 1f 44 00 00 89 c8 [ 27.532994] RSP: 0018:c16bc1eebc88 EFLAGS: 00010002 [ 27.532996] RAX: 0202 RBX: 0202 RCX: 0001 [ 27.532998] RDX: 03e8 RSI: 9dde1e80d200 RDI: 2000 [ 27.533000] RBP: c16bc1eebc90 R08: 00027080 R09: b8210b0b [ 27.533002] R10: fc35106d5500 R11: 9dde1e86ca90 R12: 9dde0f2db646 [ 27.533003] R13: 9dde1b4b9a80 R14: 9dde195eb000 R15: [ 27.533006] FS: () GS:9dde1ecc() knlGS: [ 27.533008] CS: 0010 DS: ES: CR0: 80050033 [ 27.533010] CR2: 03e8 CR3: 000411ca6000 CR4: 003406a0 [ 27.533011] Call Trace: [ 27.533026] drm_dp_mst_handle_up_req+0x503/0x550 [drm_kms_helper] [ 27.533037] drm_dp_mst_hpd_irq+0xbe/0xaa0 [drm_kms_helper] [ 27.533045] ? drm_dp_mst_hpd_irq+0xbe/0xaa0 [drm_kms_helper] [ 27.533133] handle_hpd_rx_irq+0x22c/0x2e0 [amdgpu] [ 27.533219] ? handle_hpd_rx_irq+0x22c/0x2e0 [amdgpu] [ 27.533306] dm_irq_work_func+0x53/0x70 [amdgpu] [ 27.533309] process_one_work+0x20f/0x410 [ 27.533312] worker_thread+0x34/0x400 [ 27.533315] kthread+0x120/0x140 [ 27.533318] ? process_one_work+0x410/0x410 [ 27.533320] ? __kthread_parkme+0x70/0x70 [ 27.533325] ret_from_fork+0x22/0x40 [ 27.533327] Modules linked in: cmac bnep btusb btrtl btbcm btintel bluetooth ecdh_generic bonding uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev media nfc edac_mce_amd kvm_amd ccp kvm arc4 irqbypass nls_iso8859_1 crct10dif_pclmul crc32_pclmul snd_hda_codec_conexant ghash_clmulni_intel snd_hda_codec_generic snd_hda_codec_hdmi ledtrig_audio snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm aesni_intel iwlmvm snd_seq_midi snd_seq_midi_event aes_x86_64 crypto_simd mac80211 cryptd snd_rawmidi glue_helper snd_seq iwlwifi snd_seq_device joydev snd_timer input_leds hp_wmi serio_raw sparse_keymap wmi_bmof snd k10temp cfg80211 soundcore ipmi_devintf ipmi_msghandler ucsi_acpi typec_ucsi typec hp_wireless mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 amdgpu chash gpu_sched amd_iommu_v2 i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops nvme psmouse ahci drm libahci i2c_piix4 r8169 nvme_core realtek [ 27.533372] wmi i2c_hid hid video [ 27.533378] CR2: 03e8 [ 27.533380] ---[ end trace af80d2e3030b9f18 ]--- ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
My bad, didn't notice it's AMD graphics instead of Intel graphics. Please test mainline kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v5.1-rc3 kernel [0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed”, and attach dmesg. Thanks in advance. [0] https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.1-rc3/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
I don't think this issue is related to LP #1820811. In #1820811, the hang always occurs when hot-plugging. With this issue, if the device is cold plugged (plugged in at boot), it can be disconencted and re-connected without issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
It's possible, though it's hard to confirm as I cannot find a kernel OOPS message in that ticket. If they can avoid hanging if the dock is plugged in when first booting, then I think they are very likely related. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
Similar to LP: #1820811? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
I have verified this issue still exists in kernel version 4.18.0-10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1819924] Re: System hangs when hot-plugging dual monitor dock
Would it be possible to try kernel < 4.18.0-16? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819924 Title: System hangs when hot-plugging dual monitor dock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
