After rereading my post, I precise that the mentioned crashes are freezes: they happened randomly, sometimes when I was away from my computer, sometimes when I'm using it. When they happen, all is frozen, nothing responds, and I have to push during 10 s my laptop power button to switch it off and then reboot.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1913273 Title: System crash randomly Status in linux package in Ubuntu: Confirmed Bug description: Since the linux-image-5.4.0-62 kernel, my system crashes randomly several times a day. I have the same behavior (crash) with the 5.4.0-64. I have reinstalled the 5.4.0-60 which seems to work properly. I have few informations about my crashes. The only starting point I found is in my /var/log/kern.log, where the following lines appear (I have no certitudes this is related to my problem, but I didn't found anything else): Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.549952] ------------[ cut here ]------------ Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.549960] kernel BUG at mm/slub.c:306! Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.549987] invalid opcode: 0000 [#1] SMP NOPTI Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.549994] CPU: 0 PID: 5238 Comm: ThreadPoolForeg Tainted: G OE 5.4.0-64-generic #72-Ubuntu Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.549996] Hardware name: Dell Inc. Latitude 5400/0PD9KD, BIOS 1.4.2 07/04/2019 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550013] RIP: 0010:__slab_free+0x189/0x330 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550017] Code: 00 48 89 c7 fa 66 0f 1f 44 00 00 f0 49 0f ba 2c 24 00 72 65 4d 3b 6c 24 20 74 11 49 0f ba 34 24 00 57 9d 0f 1f 44 00 00 eb 9f <0f> 0b 49 3b 5c 24 28 75 e8 48 8b 44 24 28 49 89 4c 24 28 49 89 44 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550019] RSP: 0018:ffffa141c3b53c20 EFLAGS: 00010246 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550022] RAX: ffff8f007ba1cae0 RBX: 00000000802a0028 RCX: ffff8f007ba1cae0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550024] RDX: ffff8f007ba1cae0 RSI: ffffd41b8fee8700 RDI: ffff8f00ea407480 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550025] RBP: ffffa141c3b53cb8 R08: 0000000000000001 R09: ffffffffc1511547 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550053] R10: ffff8f007ba1cae0 R11: 0000000000000001 R12: ffffd41b8fee8700 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550055] R13: ffff8f007ba1cae0 R14: ffff8f00ea407480 R15: ffffa141c3b53e68 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550058] FS: 00007f3d4cf50700(0000) GS:ffff8f00ec200000(0000) knlGS:0000000000000000 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550060] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550062] CR2: 0000083cc0009100 CR3: 00000002efebe004 CR4: 00000000003606f0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550064] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550066] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550068] Call Trace: Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550094] ? hnfsflt_ll_free.part.0+0x17/0x30 [hnfsflt] Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550097] kfree+0x231/0x250 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550102] hnfsflt_ll_free.part.0+0x17/0x30 [hnfsflt] Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550105] hnfsflt_ll_insert+0x31/0xc0 [hnfsflt] Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550108] hnfsflt_logcall+0x282/0x9e0 [hnfsflt] Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550128] rfs_postcall_flts+0x63/0x85 [redirfs] Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550135] rfs_setattr+0x115/0x1b0 [redirfs] Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550144] notify_change+0x357/0x4e0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550156] do_truncate+0x78/0xd0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550161] do_sys_ftruncate+0x14a/0x1c0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550166] __x64_sys_ftruncate+0x1b/0x20 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550181] do_syscall_64+0x57/0x190 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550215] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550222] RIP: 0033:0x7f3d5725ee5b Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550225] Code: 77 05 c3 0f 1f 40 00 48 8b 15 31 10 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 4d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 01 10 0d 00 f7 d8 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550228] RSP: 002b:00007f3d4cf4efc8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550230] RAX: ffffffffffffffda RBX: 00007f3d4cf4eff0 RCX: 00007f3d5725ee5b Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550232] RDX: 000055ac80ccd280 RSI: 000000000053980d RDI: 00000000000000d1 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550233] RBP: 00007f3d4cf4f070 R08: 0000000000000000 R09: 00007f3d4cf4ed78 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550235] R10: 00007f3d4cf4ed70 R11: 0000000000000246 R12: 00007f3d4cf4efd0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550237] R13: 000028d6bd383240 R14: 000000000053980d R15: 00000000000000d1 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550249] Modules linked in: ccm aufs hnfsflt(OE) redirfs(OE) ip6table_filter ip6_tables iptable_filter bpfilter rfcomm cmac algif_hash algif_skcipher overlay af_alg bnep binfmt_misc dm_crypt typec_displayport nls_iso8859_1 dell_rbtn snd_hda_codec_hdmi snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda snd_sof_intel_byt snd_sof_intel_ipc snd_sof mei_hdcp snd_sof_xtensa_dsp snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi intel_rapl_msr snd_soc_core snd_hda_codec_realtek snd_compress ac97_bus snd_hda_codec_generic snd_pcm_dmaengine snd_hda_intel snd_intel_dspcfg dell_laptop snd_hda_codec ledtrig_audio x86_pkg_temp_thermal intel_powerclamp snd_usb_audio snd_hda_core dell_smm_hwmon snd_usbmidi_lib coretemp snd_hwdep snd_pcm kvm_intel iwlmvm snd_seq_midi snd_seq_midi_event kvm snd_rawmidi dell_wmi mac80211 dell_smbios rapl dcdbas intel_cstate snd_seq libarc4 uvcvideo serio_raw cdc_ether snd_seq_device usbnet videobuf2_vmalloc snd_timer iwlwifi videobuf2_memops Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550339] videobuf2_v4l2 r8152 rtsx_pci_ms videobuf2_common dell_wmi_descriptor wmi_bmof intel_wmi_thunderbolt memstick hid_multitouch mii snd btusb videodev btrtl btbcm btintel mei_me cfg80211 bluetooth mc soundcore mei joydev processor_thermal_device input_leds ecdh_generic intel_rapl_common ucsi_acpi typec_ucsi ecc intel_soc_dts_iosf intel_pch_thermal typec mac_hid int3403_thermal int340x_thermal_zone dell_smo8800 intel_hid sparse_keymap int3400_thermal acpi_thermal_rel acpi_pad sch_fq_codel cuse parport_pc ppdev nfsd lp parport auth_rpcgss nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_logitech_hidpp hid_logitech_dj usbhid hid_generic rtsx_pci_sdmmc crct10dif_pclmul i915 crc32_pclmul ghash_clmulni_intel aesni_intel i2c_algo_bit crypto_simd drm_kms_helper cryptd nvme glue_helper syscopyarea sysfillrect sysimgblt psmouse Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550435] fb_sys_fops drm e1000e nvme_core rtsx_pci ahci intel_lpss_pci intel_lpss libahci idma64 virt_dma i2c_hid wmi hid video pinctrl_cannonlake pinctrl_intel Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550502] ---[ end trace 12d511240a194e99 ]--- Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550511] RIP: 0010:__slab_free+0x189/0x330 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550515] Code: 00 48 89 c7 fa 66 0f 1f 44 00 00 f0 49 0f ba 2c 24 00 72 65 4d 3b 6c 24 20 74 11 49 0f ba 34 24 00 57 9d 0f 1f 44 00 00 eb 9f <0f> 0b 49 3b 5c 24 28 75 e8 48 8b 44 24 28 49 89 4c 24 28 49 89 44 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550517] RSP: 0018:ffffa141c3b53c20 EFLAGS: 00010246 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550520] RAX: ffff8f007ba1cae0 RBX: 00000000802a0028 RCX: ffff8f007ba1cae0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550522] RDX: ffff8f007ba1cae0 RSI: ffffd41b8fee8700 RDI: ffff8f00ea407480 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550523] RBP: ffffa141c3b53cb8 R08: 0000000000000001 R09: ffffffffc1511547 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550525] R10: ffff8f007ba1cae0 R11: 0000000000000001 R12: ffffd41b8fee8700 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550527] R13: ffff8f007ba1cae0 R14: ffff8f00ea407480 R15: ffffa141c3b53e68 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550529] FS: 00007f3d4cf50700(0000) GS:ffff8f00ec200000(0000) knlGS:0000000000000000 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550531] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550533] CR2: 0000083cc0009100 CR3: 00000002efebe004 CR4: 00000000003606f0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550535] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.550537] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573287] general protection fault: 0000 [#2] SMP NOPTI Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573294] CPU: 3 PID: 2144 Comm: HNagent Tainted: G D OE 5.4.0-64-generic #72-Ubuntu Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573299] Hardware name: Dell Inc. Latitude 5400/0PD9KD, BIOS 1.4.2 07/04/2019 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573312] RIP: 0010:hnfsdev_read+0x64/0x180 [hnfsflt] Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573315] Code: 00 00 53 48 85 d2 75 42 eb 7c 85 d2 0f 84 9b 00 00 00 48 8b 47 38 48 63 ca 48 83 c0 03 48 39 c1 0f 83 e6 00 00 00 48 8b 47 40 <0f> b6 44 08 fd 4c 89 e9 e8 5f 91 db d8 83 c2 01 89 57 30 49 83 c5 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573318] RSP: 0018:ffffa141c281fe60 EFLAGS: 00010287 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573321] RAX: 3064645f6574656c RBX: ffff8f00df1e2f80 RCX: 000000006c756166 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573322] RDX: 000000006c756166 RSI: 0000000000000282 RDI: ffff8f007ba1c120 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573324] RBP: ffffa141c281fe88 R08: 0000000000000000 R09: ffffffffc1511500 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573326] R10: ffff8f008d7c2120 R11: 0000000000000001 R12: 000000000000000a Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573327] R13: 00007f1b04001a29 R14: 0000000000000be9 R15: 00007f1b04001e40 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573331] FS: 00007f1b166b6700(0000) GS:ffff8f00ec2c0000(0000) knlGS:0000000000000000 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573333] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573334] CR2: 00007f4fc6e5bb90 CR3: 00000004591bc006 CR4: 00000000003606e0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573338] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573339] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573342] Call Trace: Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573352] __vfs_read+0x1b/0x40 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573355] vfs_read+0xab/0x160 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573359] ksys_read+0x67/0xe0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573362] __x64_sys_read+0x1a/0x20 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573366] do_syscall_64+0x57/0x190 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573371] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573374] RIP: 0033:0x7f1b1744d36c Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573377] Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 89 fc ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 30 44 89 c7 48 89 44 24 08 e8 bf fc ff ff 48 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573379] RSP: 002b:00007f1b166a80c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573382] RAX: ffffffffffffffda RBX: 00007f1b04000db8 RCX: 00007f1b1744d36c Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573383] RDX: 0000000000001000 RSI: 00007f1b04000e40 RDI: 000000000000000f Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573385] RBP: 00007f1b04000db0 R08: 0000000000000000 R09: 0000000000000000 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573387] R10: 00007f1b166a8200 R11: 0000000000000246 R12: 000000000112fb98 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573388] R13: 00007f1b166afb40 R14: 00007f1b166a84a0 R15: 00007f1b16cf0d28 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573391] Modules linked in: ccm aufs hnfsflt(OE) redirfs(OE) ip6table_filter ip6_tables iptable_filter bpfilter rfcomm cmac algif_hash algif_skcipher overlay af_alg bnep binfmt_misc dm_crypt typec_displayport nls_iso8859_1 dell_rbtn snd_hda_codec_hdmi snd_sof_pci snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda snd_sof_intel_byt snd_sof_intel_ipc snd_sof mei_hdcp snd_sof_xtensa_dsp snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi intel_rapl_msr snd_soc_core snd_hda_codec_realtek snd_compress ac97_bus snd_hda_codec_generic snd_pcm_dmaengine snd_hda_intel snd_intel_dspcfg dell_laptop snd_hda_codec ledtrig_audio x86_pkg_temp_thermal intel_powerclamp snd_usb_audio snd_hda_core dell_smm_hwmon snd_usbmidi_lib coretemp snd_hwdep snd_pcm kvm_intel iwlmvm snd_seq_midi snd_seq_midi_event kvm snd_rawmidi dell_wmi mac80211 dell_smbios rapl dcdbas intel_cstate snd_seq libarc4 uvcvideo serio_raw cdc_ether snd_seq_device usbnet videobuf2_vmalloc snd_timer iwlwifi videobuf2_memops Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573432] videobuf2_v4l2 r8152 rtsx_pci_ms videobuf2_common dell_wmi_descriptor wmi_bmof intel_wmi_thunderbolt memstick hid_multitouch mii snd btusb videodev btrtl btbcm btintel mei_me cfg80211 bluetooth mc soundcore mei joydev processor_thermal_device input_leds ecdh_generic intel_rapl_common ucsi_acpi typec_ucsi ecc intel_soc_dts_iosf intel_pch_thermal typec mac_hid int3403_thermal int340x_thermal_zone dell_smo8800 intel_hid sparse_keymap int3400_thermal acpi_thermal_rel acpi_pad sch_fq_codel cuse parport_pc ppdev nfsd lp parport auth_rpcgss nfs_acl lockd grace sunrpc ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_logitech_hidpp hid_logitech_dj usbhid hid_generic rtsx_pci_sdmmc crct10dif_pclmul i915 crc32_pclmul ghash_clmulni_intel aesni_intel i2c_algo_bit crypto_simd drm_kms_helper cryptd nvme glue_helper syscopyarea sysfillrect sysimgblt psmouse Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573477] fb_sys_fops drm e1000e nvme_core rtsx_pci ahci intel_lpss_pci intel_lpss libahci idma64 virt_dma i2c_hid wmi hid video pinctrl_cannonlake pinctrl_intel Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573491] ---[ end trace 12d511240a194e9a ]--- Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573497] RIP: 0010:__slab_free+0x189/0x330 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573499] Code: 00 48 89 c7 fa 66 0f 1f 44 00 00 f0 49 0f ba 2c 24 00 72 65 4d 3b 6c 24 20 74 11 49 0f ba 34 24 00 57 9d 0f 1f 44 00 00 eb 9f <0f> 0b 49 3b 5c 24 28 75 e8 48 8b 44 24 28 49 89 4c 24 28 49 89 44 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573501] RSP: 0018:ffffa141c3b53c20 EFLAGS: 00010246 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573503] RAX: ffff8f007ba1cae0 RBX: 00000000802a0028 RCX: ffff8f007ba1cae0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573505] RDX: ffff8f007ba1cae0 RSI: ffffd41b8fee8700 RDI: ffff8f00ea407480 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573507] RBP: ffffa141c3b53cb8 R08: 0000000000000001 R09: ffffffffc1511547 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573508] R10: ffff8f007ba1cae0 R11: 0000000000000001 R12: ffffd41b8fee8700 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573510] R13: ffff8f007ba1cae0 R14: ffff8f00ea407480 R15: ffffa141c3b53e68 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573512] FS: 00007f1b166b6700(0000) GS:ffff8f00ec2c0000(0000) knlGS:0000000000000000 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573514] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573516] CR2: 00007f4fc6e5bb90 CR3: 00000004591bc006 CR4: 00000000003606e0 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573518] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jan 25 09:19:42 IUTNC-DOSCH-1 kernel: [ 121.573519] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-62-generic 5.4.0-62.70 ProcVersionSignature: Ubuntu 5.4.0-60.67-generic 5.4.78 Uname: Linux 5.4.0-60-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.14 Architecture: amd64 AudioDevicesInUse: UTIL. PID ACCÈS COMMANDE /dev/snd/controlC2: phil 2150 F.... pulseaudio /dev/snd/controlC1: phil 2150 F.... pulseaudio /dev/snd/controlC0: phil 2150 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Tue Jan 26 09:56:08 2021 HibernationDevice: RESUME=UUID=6cb6e52f-11bd-4356-ad04-12d7fdbfcaba InstallationDate: Installed on 2019-10-30 (453 days ago) InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: Dell Inc. Latitude 5400 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-60-generic root=UUID=9bd06078-424a-4925-9700-84aa6ece37d9 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-60-generic N/A linux-backports-modules-5.4.0-60-generic N/A linux-firmware 1.187.8 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-10-08 (109 days ago) dmi.bios.date: 07/04/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.4.2 dmi.board.name: 0PD9KD dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.4.2:bd07/04/2019:svnDellInc.:pnLatitude5400:pvr:rvnDellInc.:rn0PD9KD:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: Latitude dmi.product.name: Latitude 5400 dmi.product.sku: 08B8 dmi.sys.vendor: Dell Inc. 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