Public bug reported:

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.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug focal

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https://bugs.launchpad.net/bugs/1913273

Title:
  System crash randomly

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