[Bug 1826691] Re: fwupd hangs after 19.04 upgrade from 18.10

Mario Limonciello superm1 at ubuntu.com
Mon Jul 15 19:24:45 UTC 2019


** Changed in: linux (Ubuntu Disco)
       Status: Incomplete => Triaged

** Changed in: linux (Ubuntu Eoan)
       Status: Incomplete => Triaged

** Also affects: linux via
   https://bugs.freedesktop.org/show_bug.cgi?id=110604
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1826691

Title:
  fwupd hangs after 19.04 upgrade from 18.10

Status in Linux:
  Unknown
Status in fwupd package in Ubuntu:
  Triaged
Status in linux package in Ubuntu:
  Triaged
Status in fwupd source package in Disco:
  Triaged
Status in linux source package in Disco:
  Triaged
Status in fwupd source package in Eoan:
  Triaged
Status in linux source package in Eoan:
  Triaged

Bug description:
  1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu
  $ lsb_release -rd
  Description:    Ubuntu 19.04
  Release:        19.04

  Being a firmware updater, the machine is probably relevant - Dell
  7730.

  
  2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center
  $ apt policy fwupd
  fwupd:
    Installed: (none)
    Candidate: 1.2.5-1ubuntu1
    Version table:
       1.2.5-1ubuntu1 500
          500 http://us.archive.ubuntu.com/ubuntu disco/main amd64 Packages
          100 /var/lib/dpkg/status

  
  3) What you expected to happen
  I expected few/no issues after 19.04 upgrade. The fwupd process worked perfectly in 18.10. It's upgraded the firmware on my laptop twice since I installed 18.10.

  
  4) What happened instead
  After upgrading from 18.10 to 19.04 I had an issues that when I tried to suspend my laptop using the same button press as previous, the laptop would be hot and screen flickering when I returned to reopen it. I thought there were power management issues in the upgrade, but I've traced it to fwupd not letting the PM suspend process complete (see dmesg below). I tried shutting down the fwupd daemon with systemctl but the command hangs forever. All of the fwupdmgr commands timeout. 

  Thinking something might have broken in the upgrade, I tried
  uninstalling (purge) the fwupd package and reinstalling. Starting the
  process with systemctl hangs forever like stopping it. Trying to kill
  -9 the process does not work - in uninterruptible sleep (D).

  
  This crash is probably related. It happened a couple of ours before I tried to put it to sleep the last time before uninstalling fwupd.

  
  Apr 23 19:29:14 texas kernel: [  133.673290] [drm] REG_WAIT timeout 10us * 160 tries - submit_channel_request line:246
  Apr 23 19:29:14 texas kernel: [  133.673348] WARNING: CPU: 6 PID: 2467 at drivers/gpu/drm/amd/amdgpu/../display/dc/dc_helper.c:249 generic_reg_wait.cold.3+0x25/0x2c [amdgpu]
  Apr 23 19:29:14 texas kernel: [  133.673349] Modules linked in: thunderbolt rfcomm xt_owner ip6table_filter ip6_tables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c bridge xt_CHECKSUM xt_tcpudp stp llc iptable_filter iptable_mangle bpfilter ccm snd_hda_codec_realtek snd_hda_codec_generic pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) cmac vboxdrv(OE) bnep binfmt_misc dell_rbtn nls_iso8859_1 joydev arc4 snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_compress ac97_bus intel_rapl snd_pcm_dmaengine x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_hdmi kvm_intel snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep crct10dif_pclmul i915 snd_pcm crc32_pclmul iwlmvm uvcvideo amdgpu snd_seq_midi ghash_clmulni_intel snd_seq_midi_event mac80211 videobuf2_vmalloc kvmgt videobuf2_memops vfio_mdev videobuf2_v4l2 snd_rawmidi dell_laptop mdev videobuf2_common
  Apr 23 19:29:14 texas kernel: [  133.673362]  ledtrig_audio vfio_iommu_type1 videodev dell_smm_hwmon vfio snd_seq dell_wmi media kvm chash btusb snd_seq_device amd_iommu_v2 btrtl snd_timer btbcm dell_smbios gpu_sched irqbypass btintel dcdbas ttm aesni_intel iwlwifi bluetooth drm_kms_helper aes_x86_64 crypto_simd cryptd glue_helper rtsx_pci_ms input_leds snd drm ecdh_generic intel_cstate mei_me ucsi_acpi cfg80211 serio_raw dell_wmi_descriptor intel_wmi_thunderbolt wmi_bmof memstick i2c_algo_bit mei fb_sys_fops intel_rapl_perf idma64 syscopyarea hid_multitouch processor_thermal_device soundcore sysfillrect virt_dma typec_ucsi sysimgblt intel_soc_dts_iosf intel_pch_thermal typec int3403_thermal int340x_thermal_zone dell_smo8800 acpi_pad intel_hid int3400_thermal mac_hid acpi_thermal_rel sparse_keymap sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic rtsx_pci_sdmmc nvme e1000e i2c_i801 intel_lpss_pci rtsx_pci nvme_core intel_lpss i2c_hid wmi hid video pinctrl_cannonlake pinctrl_intel
  Apr 23 19:29:14 texas kernel: [  133.673381] CPU: 6 PID: 2467 Comm: fwupd Tainted: G           OE     5.0.0-13-generic #14-Ubuntu
  Apr 23 19:29:14 texas kernel: [  133.673382] Hardware name: Dell Inc. Precision 7730/05W5TJ, BIOS 1.7.0 02/19/2019
  Apr 23 19:29:14 texas kernel: [  133.673417] RIP: 0010:generic_reg_wait.cold.3+0x25/0x2c [amdgpu]
  Apr 23 19:29:14 texas kernel: [  133.673418] Code: e9 37 7e fe ff 44 8b 45 20 48 8b 4d 18 48 c7 c7 40 34 17 c1 8b 55 10 8b 75 d4 e8 3b ce 82 e1 41 83 7d 20 01 0f 84 0c c3 fe ff <0f> 0b e9 05 c3 fe ff 55 48 89 e5 e8 5d de ec ff 48 c7 c7 00 a0 18
  Apr 23 19:29:14 texas kernel: [  133.673419] RSP: 0018:ffffbbaa0612fbb0 EFLAGS: 00010297
  Apr 23 19:29:14 texas kernel: [  133.673420] RAX: 0000000000000049 RBX: 00000000000000a1 RCX: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673420] RDX: 0000000000000000 RSI: ffff94843c196448 RDI: ffff94843c196448
  Apr 23 19:29:14 texas kernel: [  133.673420] RBP: ffffbbaa0612fbf8 R08: 0000000000000001 R09: 00000000000004fa
  Apr 23 19:29:14 texas kernel: [  133.673421] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000005c04
  Apr 23 19:29:14 texas kernel: [  133.673421] R13: ffff948431de5840 R14: 00000000ffffffff R15: ffff948431de5840
  Apr 23 19:29:14 texas kernel: [  133.673422] FS:  00007ff849b11b40(0000) GS:ffff94843c180000(0000) knlGS:0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673422] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Apr 23 19:29:14 texas kernel: [  133.673423] CR2: 00007ff83400f6d8 CR3: 0000000847680006 CR4: 00000000003606e0
  Apr 23 19:29:14 texas kernel: [  133.673423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  Apr 23 19:29:14 texas kernel: [  133.673424] Call Trace:
  Apr 23 19:29:14 texas kernel: [  133.673461]  submit_channel_request+0x3fd/0x780 [amdgpu]
  Apr 23 19:29:14 texas kernel: [  133.673492]  dc_link_aux_transfer+0xc6/0x150 [amdgpu]
  Apr 23 19:29:14 texas kernel: [  133.673526]  dm_dp_aux_transfer+0x61/0x130 [amdgpu]
  Apr 23 19:29:14 texas kernel: [  133.673531]  drm_dp_dpcd_access+0x75/0x110 [drm_kms_helper]
  Apr 23 19:29:14 texas kernel: [  133.673533]  drm_dp_dpcd_read+0x33/0xc0 [drm_kms_helper]
  Apr 23 19:29:14 texas kernel: [  133.673537]  auxdev_read_iter+0xe6/0x1a0 [drm_kms_helper]
  Apr 23 19:29:14 texas kernel: [  133.673539]  new_sync_read+0x109/0x170
  Apr 23 19:29:14 texas kernel: [  133.673541]  __vfs_read+0x29/0x40
  Apr 23 19:29:14 texas kernel: [  133.673542]  vfs_read+0x99/0x160
  Apr 23 19:29:14 texas kernel: [  133.673542]  ksys_read+0x55/0xc0
  Apr 23 19:29:14 texas kernel: [  133.673543]  __x64_sys_read+0x1a/0x20
  Apr 23 19:29:14 texas kernel: [  133.673545]  do_syscall_64+0x5a/0x110
  Apr 23 19:29:14 texas kernel: [  133.673546]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
  Apr 23 19:29:14 texas kernel: [  133.673547] RIP: 0033:0x7ff84ccb4d94
  Apr 23 19:29:14 texas kernel: [  133.673548] Code: 84 00 00 00 00 00 41 54 49 89 d4 55 48 89 f5 53 89 fb 48 83 ec 10 e8 5b fc ff ff 4c 89 e2 48 89 ee 89 df 41 89 c0 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 48 89 44 24 08 e8 97 fc ff ff 48
  Apr 23 19:29:14 texas kernel: [  133.673548] RSP: 002b:00007ffe268d7130 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673549] RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 00007ff84ccb4d94
  Apr 23 19:29:14 texas kernel: [  133.673549] RDX: 0000000000000001 RSI: 00007ffe268d7194 RDI: 0000000000000013
  Apr 23 19:29:14 texas kernel: [  133.673550] RBP: 00007ffe268d7194 R08: 0000000000000000 R09: 00007ff84cca13d0
  Apr 23 19:29:14 texas kernel: [  133.673550] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
  Apr 23 19:29:14 texas kernel: [  133.673550] R13: 00007ffe268d7200 R14: 0000000000000001 R15: 000056469f7bd0e0
  Apr 23 19:29:14 texas kernel: [  133.673552] ---[ end trace b363bbe01edada49 ]---
  Apr 23 19:29:14 texas kernel: [  133.673574] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
  Apr 23 19:29:14 texas kernel: [  133.673576] #PF error: [normal kernel read fault]
  Apr 23 19:29:14 texas kernel: [  133.673577] PGD 0 P4D 0 
  Apr 23 19:29:14 texas kernel: [  133.673578] Oops: 0000 [#1] SMP PTI
  Apr 23 19:29:14 texas kernel: [  133.673579] CPU: 6 PID: 2467 Comm: fwupd Tainted: G        W  OE     5.0.0-13-generic #14-Ubuntu
  Apr 23 19:29:14 texas kernel: [  133.673580] Hardware name: Dell Inc. Precision 7730/05W5TJ, BIOS 1.7.0 02/19/2019
  Apr 23 19:29:14 texas kernel: [  133.673614] RIP: 0010:dal_ddc_close+0xd/0x30 [amdgpu]
  Apr 23 19:29:14 texas kernel: [  133.673615] Code: e8 38 f5 ff ff 48 8b 55 f8 65 48 33 14 25 28 00 00 00 75 02 c9 c3 e8 02 01 84 e1 66 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb <48> 8b 7f 08 e8 0a f6 ff ff 48 8b 3b e8 02 f6 ff ff 5b 5d c3 66 2e
  Apr 23 19:29:14 texas kernel: [  133.673615] RSP: 0018:ffffbbaa0612fc28 EFLAGS: 00010246
  Apr 23 19:29:14 texas kernel: [  133.673616] RAX: ffffffffc1052ad0 RBX: 0000000000000000 RCX: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673617] RDX: 00000000ffffffff RSI: 0000000000005c04 RDI: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673617] RBP: ffffbbaa0612fc30 R08: 0000000000000001 R09: 000000000000000a
  Apr 23 19:29:14 texas kernel: [  133.673618] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673618] R13: ffffbbaa0612fdc0 R14: 0000000000000000 R15: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673619] FS:  00007ff849b11b40(0000) GS:ffff94843c180000(0000) knlGS:0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673620] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Apr 23 19:29:14 texas kernel: [  133.673620] CR2: 0000000000000008 CR3: 0000000847680006 CR4: 00000000003606e0
  Apr 23 19:29:14 texas kernel: [  133.673621] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673622] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  Apr 23 19:29:14 texas kernel: [  133.673622] Call Trace:
  Apr 23 19:29:14 texas kernel: [  133.673657]  release_engine+0x1e/0xd0 [amdgpu]
  Apr 23 19:29:14 texas kernel: [  133.673687]  dc_link_aux_transfer+0xfc/0x150 [amdgpu]
  Apr 23 19:29:14 texas kernel: [  133.673720]  dm_dp_aux_transfer+0x61/0x130 [amdgpu]
  Apr 23 19:29:14 texas kernel: [  133.673723]  drm_dp_dpcd_access+0x75/0x110 [drm_kms_helper]
  Apr 23 19:29:14 texas kernel: [  133.673726]  drm_dp_dpcd_read+0x33/0xc0 [drm_kms_helper]
  Apr 23 19:29:14 texas kernel: [  133.673730]  auxdev_read_iter+0xe6/0x1a0 [drm_kms_helper]
  Apr 23 19:29:14 texas kernel: [  133.673731]  new_sync_read+0x109/0x170
  Apr 23 19:29:14 texas kernel: [  133.673733]  __vfs_read+0x29/0x40
  Apr 23 19:29:14 texas kernel: [  133.673734]  vfs_read+0x99/0x160
  Apr 23 19:29:14 texas kernel: [  133.673735]  ksys_read+0x55/0xc0
  Apr 23 19:29:14 texas kernel: [  133.673736]  __x64_sys_read+0x1a/0x20
  Apr 23 19:29:14 texas kernel: [  133.673737]  do_syscall_64+0x5a/0x110
  Apr 23 19:29:14 texas kernel: [  133.673738]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
  Apr 23 19:29:14 texas kernel: [  133.673739] RIP: 0033:0x7ff84ccb4d94
  Apr 23 19:29:14 texas kernel: [  133.673740] Code: 84 00 00 00 00 00 41 54 49 89 d4 55 48 89 f5 53 89 fb 48 83 ec 10 e8 5b fc ff ff 4c 89 e2 48 89 ee 89 df 41 89 c0 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 48 89 44 24 08 e8 97 fc ff ff 48
  Apr 23 19:29:14 texas kernel: [  133.673740] RSP: 002b:00007ffe268d7130 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.673741] RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 00007ff84ccb4d94
  Apr 23 19:29:14 texas kernel: [  133.673742] RDX: 0000000000000001 RSI: 00007ffe268d7194 RDI: 0000000000000013
  Apr 23 19:29:14 texas kernel: [  133.673742] RBP: 00007ffe268d7194 R08: 0000000000000000 R09: 00007ff84cca13d0
  Apr 23 19:29:14 texas kernel: [  133.673743] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
  Apr 23 19:29:14 texas kernel: [  133.673743] R13: 00007ffe268d7200 R14: 0000000000000001 R15: 000056469f7bd0e0
  Apr 23 19:29:14 texas kernel: [  133.673744] Modules linked in: thunderbolt rfcomm xt_owner ip6table_filter ip6_tables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c bridge xt_CHECKSUM xt_tcpudp stp llc iptable_filter iptable_mangle bpfilter ccm snd_hda_codec_realtek snd_hda_codec_generic pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) cmac vboxdrv(OE) bnep binfmt_misc dell_rbtn nls_iso8859_1 joydev arc4 snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_compress ac97_bus intel_rapl snd_pcm_dmaengine x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_hdmi kvm_intel snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep crct10dif_pclmul i915 snd_pcm crc32_pclmul iwlmvm uvcvideo amdgpu snd_seq_midi ghash_clmulni_intel snd_seq_midi_event mac80211 videobuf2_vmalloc kvmgt videobuf2_memops vfio_mdev videobuf2_v4l2 snd_rawmidi dell_laptop mdev videobuf2_common
  Apr 23 19:29:14 texas kernel: [  133.673754]  ledtrig_audio vfio_iommu_type1 videodev dell_smm_hwmon vfio snd_seq dell_wmi media kvm chash btusb snd_seq_device amd_iommu_v2 btrtl snd_timer btbcm dell_smbios gpu_sched irqbypass btintel dcdbas ttm aesni_intel iwlwifi bluetooth drm_kms_helper aes_x86_64 crypto_simd cryptd glue_helper rtsx_pci_ms input_leds snd drm ecdh_generic intel_cstate mei_me ucsi_acpi cfg80211 serio_raw dell_wmi_descriptor intel_wmi_thunderbolt wmi_bmof memstick i2c_algo_bit mei fb_sys_fops intel_rapl_perf idma64 syscopyarea hid_multitouch processor_thermal_device soundcore sysfillrect virt_dma typec_ucsi sysimgblt intel_soc_dts_iosf intel_pch_thermal typec int3403_thermal int340x_thermal_zone dell_smo8800 acpi_pad intel_hid int3400_thermal mac_hid acpi_thermal_rel sparse_keymap sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic rtsx_pci_sdmmc nvme e1000e i2c_i801 intel_lpss_pci rtsx_pci nvme_core intel_lpss i2c_hid wmi hid video pinctrl_cannonlake pinctrl_intel
  Apr 23 19:29:14 texas kernel: [  133.673765] CR2: 0000000000000008
  Apr 23 19:29:14 texas kernel: [  133.673766] ---[ end trace b363bbe01edada4a ]---
  Apr 23 19:29:14 texas kernel: [  133.696801] RIP: 0010:dal_ddc_close+0xd/0x30 [amdgpu]
  Apr 23 19:29:14 texas kernel: [  133.696804] Code: e8 38 f5 ff ff 48 8b 55 f8 65 48 33 14 25 28 00 00 00 75 02 c9 c3 e8 02 01 84 e1 66 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb <48> 8b 7f 08 e8 0a f6 ff ff 48 8b 3b e8 02 f6 ff ff 5b 5d c3 66 2e
  Apr 23 19:29:14 texas kernel: [  133.696805] RSP: 0018:ffffbbaa0612fc28 EFLAGS: 00010246
  Apr 23 19:29:14 texas kernel: [  133.696806] RAX: ffffffffc1052ad0 RBX: 0000000000000000 RCX: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.696807] RDX: 00000000ffffffff RSI: 0000000000005c04 RDI: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.696808] RBP: ffffbbaa0612fc30 R08: 0000000000000001 R09: 000000000000000a
  Apr 23 19:29:14 texas kernel: [  133.696809] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.696809] R13: ffffbbaa0612fdc0 R14: 0000000000000000 R15: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.696810] FS:  00007ff849b11b40(0000) GS:ffff94843c180000(0000) knlGS:0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.696811] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Apr 23 19:29:14 texas kernel: [  133.696812] CR2: 0000000000000008 CR3: 0000000847680006 CR4: 00000000003606e0
  Apr 23 19:29:14 texas kernel: [  133.696813] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  Apr 23 19:29:14 texas kernel: [  133.696813] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


  
  This is where I tried to put the machine to sleep. This just repeats over and over for hours.

  
  Apr 23 21:24:35 texas kernel: [ 7054.876888] PM: suspend entry (deep)
  Apr 23 21:24:55 texas kernel: [ 7054.876891] PM: Syncing filesystems ... done.
  Apr 23 21:24:55 texas kernel: [ 7054.882703] Freezing user space processes ... 
  Apr 23 21:24:55 texas kernel: [ 7074.885463] Freezing of tasks failed after 20.002 seconds (2 tasks refusing to freeze, wq_busy=0):
  Apr 23 21:24:55 texas kernel: [ 7074.885566] fwupd           D    0  3560      1 0x00000324
  Apr 23 21:24:55 texas kernel: [ 7074.885572] Call Trace:
  Apr 23 21:24:55 texas kernel: [ 7074.885586]  __schedule+0x2d0/0x840
  Apr 23 21:24:55 texas kernel: [ 7074.885593]  schedule+0x2c/0x70
  Apr 23 21:24:55 texas kernel: [ 7074.885599]  schedule_preempt_disabled+0xe/0x10
  Apr 23 21:24:55 texas kernel: [ 7074.885605]  __mutex_lock.isra.10+0x2e4/0x4c0
  Apr 23 21:24:55 texas kernel: [ 7074.885612]  ? mntput+0x24/0x40
  Apr 23 21:24:55 texas kernel: [ 7074.885618]  __mutex_lock_slowpath+0x13/0x20
  Apr 23 21:24:55 texas kernel: [ 7074.885624]  mutex_lock+0x2c/0x30
  Apr 23 21:24:55 texas kernel: [ 7074.885645]  drm_dp_dpcd_access+0x62/0x110 [drm_kms_helper]
  Apr 23 21:24:55 texas kernel: [ 7074.885660]  drm_dp_dpcd_read+0x33/0xc0 [drm_kms_helper]
  Apr 23 21:24:55 texas kernel: [ 7074.885677]  auxdev_read_iter+0xe6/0x1a0 [drm_kms_helper]
  Apr 23 21:24:55 texas kernel: [ 7074.885686]  new_sync_read+0x109/0x170
  Apr 23 21:24:55 texas kernel: [ 7074.885694]  __vfs_read+0x29/0x40
  Apr 23 21:24:55 texas kernel: [ 7074.885700]  vfs_read+0x99/0x160
  Apr 23 21:24:55 texas kernel: [ 7074.885704]  ksys_read+0x55/0xc0
  Apr 23 21:24:55 texas kernel: [ 7074.885709]  __x64_sys_read+0x1a/0x20
  Apr 23 21:24:55 texas kernel: [ 7074.885716]  do_syscall_64+0x5a/0x110
  Apr 23 21:24:55 texas kernel: [ 7074.885721]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
  Apr 23 21:24:55 texas kernel: [ 7074.885725] RIP: 0033:0x7f6385956d94
  Apr 23 21:24:55 texas kernel: [ 7074.885736] Code: Bad RIP value.
  Apr 23 21:24:55 texas kernel: [ 7074.885740] RSP: 002b:00007ffdae1bf660 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
  Apr 23 21:24:55 texas kernel: [ 7074.885745] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007f6385956d94
  Apr 23 21:24:55 texas kernel: [ 7074.885748] RDX: 0000000000000001 RSI: 00007ffdae1bf6c4 RDI: 0000000000000012
  Apr 23 21:24:55 texas kernel: [ 7074.885751] RBP: 00007ffdae1bf6c4 R08: 0000000000000000 R09: 00007f63859433d0
  Apr 23 21:24:55 texas kernel: [ 7074.885754] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
  Apr 23 21:24:55 texas kernel: [ 7074.885757] R13: 00007ffdae1bf730 R14: 0000000000000001 R15: 000055d7942800e0
  Apr 23 21:24:55 texas kernel: [ 7074.885888] fwupd           D    0 15153      1 0x00000324
  Apr 23 21:24:55 texas kernel: [ 7074.885893] Call Trace:
  Apr 23 21:24:55 texas kernel: [ 7074.885900]  __schedule+0x2d0/0x840
  Apr 23 21:24:55 texas kernel: [ 7074.885906]  schedule+0x2c/0x70
  Apr 23 21:24:55 texas kernel: [ 7074.885912]  schedule_preempt_disabled+0xe/0x10
  Apr 23 21:24:55 texas kernel: [ 7074.885917]  __mutex_lock.isra.10+0x2e4/0x4c0
  Apr 23 21:24:55 texas kernel: [ 7074.885922]  ? mntput+0x24/0x40
  Apr 23 21:24:55 texas kernel: [ 7074.885928]  __mutex_lock_slowpath+0x13/0x20
  Apr 23 21:24:55 texas kernel: [ 7074.885934]  mutex_lock+0x2c/0x30
  Apr 23 21:24:55 texas kernel: [ 7074.885948]  drm_dp_dpcd_access+0x62/0x110 [drm_kms_helper]
  Apr 23 21:24:55 texas kernel: [ 7074.885963]  drm_dp_dpcd_read+0x33/0xc0 [drm_kms_helper]
  Apr 23 21:24:55 texas kernel: [ 7074.885980]  auxdev_read_iter+0xe6/0x1a0 [drm_kms_helper]
  Apr 23 21:24:55 texas kernel: [ 7074.885987]  new_sync_read+0x109/0x170
  Apr 23 21:24:55 texas kernel: [ 7074.885995]  __vfs_read+0x29/0x40
  Apr 23 21:24:55 texas kernel: [ 7074.886001]  vfs_read+0x99/0x160
  Apr 23 21:24:55 texas kernel: [ 7074.886006]  ksys_read+0x55/0xc0
  Apr 23 21:24:55 texas kernel: [ 7074.886010]  __x64_sys_read+0x1a/0x20
  Apr 23 21:24:55 texas kernel: [ 7074.886016]  do_syscall_64+0x5a/0x110
  Apr 23 21:24:55 texas kernel: [ 7074.886021]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
  Apr 23 21:24:55 texas kernel: [ 7074.886024] RIP: 0033:0x7f2d10a13d94
  Apr 23 21:24:55 texas kernel: [ 7074.886031] Code: Bad RIP value.
  Apr 23 21:24:55 texas kernel: [ 7074.886033] RSP: 002b:00007ffea8d1fcc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
  Apr 23 21:24:55 texas kernel: [ 7074.886037] RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 00007f2d10a13d94
  Apr 23 21:24:55 texas kernel: [ 7074.886040] RDX: 0000000000000001 RSI: 00007ffea8d1fd24 RDI: 0000000000000013
  Apr 23 21:24:55 texas kernel: [ 7074.886043] RBP: 00007ffea8d1fd24 R08: 0000000000000000 R09: 00007f2d10a003d0
  Apr 23 21:24:55 texas kernel: [ 7074.886045] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
  Apr 23 21:24:55 texas kernel: [ 7074.886048] R13: 00007ffea8d1fd90 R14: 0000000000000001 R15: 0000559521ae10e0
  Apr 23 21:24:55 texas kernel: [ 7074.886098] OOM killer enabled.
  Apr 23 21:24:55 texas kernel: [ 7074.886100] Restarting tasks ... done.
  Apr 23 21:24:55 texas kernel: [ 7074.970970] PM: suspend exit
  Apr 23 21:24:55 texas kernel: [ 7074.971019] PM: suspend entry (s2idle)
  Apr 23 21:25:15 texas kernel: [ 7074.971020] PM: Syncing filesystems ... done.
  Apr 23 21:25:15 texas kernel: [ 7074.975574] Freezing user space processes ...
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.10-0ubuntu27
  Architecture: amd64
  CurrentDesktop: Budgie:GNOME
  DistroRelease: Ubuntu 19.04
  InstallationDate: Installed on 2019-02-04 (84 days ago)
  InstallationMedia: Ubuntu-Budgie 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2)
  Package: linux
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
  Tags:  disco
  Uname: Linux 5.0.0-13-generic x86_64
  UpgradeStatus: Upgraded to disco on 2019-04-19 (10 days ago)
  UserGroups: adm cdrom dialout dip kismet lpadmin plugdev sambashare sudo tty uucp wireshark
  _MarkForUpload: True
  mtime.conffile..etc.fwupd.daemon.conf: 2019-04-28T08:55:40.597463

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