Public bug reported:
I have an Intel i915 Haswell system which - after upgrading from Ubuntu
20.04 to 22.04 - experiences repeated crashes when resuming from
hibernation.
Unfortunately, "ubuntu-bug" claims my kernel package is "not an official
package" (which is untrue, at least to my knowledge - I installed from
the official sources) so I cannot use 'ubuntu-bug'.
$ cat /proc/version_signature
Ubuntu 5.15.0-56.62-generic 5.15.64
I will attach the lspci output.
This is the dmesg trace:
Jan 3 17:16:33 linuxkiste kernel: [164294.599802] BUG: unable to handle page
fault for address: ffffe2fc51000008
Jan 3 17:16:33 linuxkiste kernel: [164294.599809] #PF: supervisor read access
in kernel mode
Jan 3 17:16:33 linuxkiste kernel: [164294.599811] #PF: error_code(0x0000) -
not-present page
Jan 3 17:16:33 linuxkiste kernel: [164294.599813] PGD 0 P4D 0
Jan 3 17:16:33 linuxkiste kernel: [164294.599815] Oops: 0000 [#1] SMP PTI
Jan 3 17:16:33 linuxkiste kernel: [164294.599818] CPU: 1 PID: 93586 Comm:
chrome Tainted: G OE 5.15.0-56-generic #62-Ubuntu
Jan 3 17:16:33 linuxkiste kernel: [164294.599820] Hardware name: MSI
MS-7817/CSM-B85M-E45 (MS-7817), BIOS V10.9 04/21/2015
Jan 3 17:16:33 linuxkiste kernel: [164294.599822] RIP: 0010:kfree+0x68/0x250
Jan 3 17:16:33 linuxkiste kernel: [164294.599827] Code: 80 49 01 dc 0f 82 f2
01 00 00 48 c7 c0 00 00 00 80 48 2b 05 42 63 39 01 49 01 c4 49 c1 ec 0c 49 c1
e4 06 4c 03 25 20 63 39 01 <49> 8b 44 24 08 48 8d 50 ff a8 01 4c 0f 45 e2 49 8b
54 24 08 48 8d
Jan 3 17:16:33 linuxkiste kernel: [164294.599829] RSP: 0018:ffffb98e88c47930
EFLAGS: 00010286
Jan 3 17:16:33 linuxkiste kernel: [164294.599831] RAX: 00006bf380000000 RBX:
00000000400000c0 RCX: 0000000000392c14
Jan 3 17:16:33 linuxkiste kernel: [164294.599833] RDX: ffffb98e80000000 RSI:
ffffffffa04d669e RDI: 00000000400000c0
Jan 3 17:16:33 linuxkiste kernel: [164294.599834] RBP: ffffb98e88c47970 R08:
0000000000000000 R09: 0000000000000000
Jan 3 17:16:33 linuxkiste kernel: [164294.599835] R10: ffff940e24fc1000 R11:
ffff940e090c5ad4 R12: ffffe2fc51000000
Jan 3 17:16:33 linuxkiste kernel: [164294.599836] R13: 000000000000000a R14:
0000000000000000 R15: 0000000000000230
Jan 3 17:16:33 linuxkiste kernel: [164294.599837] FS: 00007f3c96764340(0000)
GS:ffff94100ea80000(0000) knlGS:0000000000000000
Jan 3 17:16:33 linuxkiste kernel: [164294.599839] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Jan 3 17:16:33 linuxkiste kernel: [164294.599840] CR2: ffffe2fc51000008 CR3:
00000001f49d8001 CR4: 00000000001706e0
Jan 3 17:16:33 linuxkiste kernel: [164294.599842] Call Trace:
Jan 3 17:16:33 linuxkiste kernel: [164294.599843] <TASK>
Jan 3 17:16:33 linuxkiste kernel: [164294.599845] kvfree+0x2e/0x40
Jan 3 17:16:33 linuxkiste kernel: [164294.599850]
eb_relocate_parse_slow+0x133/0x470 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.599937]
eb_relocate_parse+0x129/0x1b0 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600009]
i915_gem_do_execbuffer+0x373/0xba0 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600083] ? __alloc_pages+0x311/0x330
Jan 3 17:16:33 linuxkiste kernel: [164294.600088] ?
i915_memcpy_init_early+0x40/0x40 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600140]
i915_gem_execbuffer2_ioctl+0x12e/0x280 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600200] ?
i915_gem_do_execbuffer+0xba0/0xba0 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600256] drm_ioctl_kernel+0xb3/0x100
[drm]
Jan 3 17:16:33 linuxkiste kernel: [164294.600290] drm_ioctl+0x268/0x4b0 [drm]
Jan 3 17:16:33 linuxkiste kernel: [164294.600308] ?
i915_gem_do_execbuffer+0xba0/0xba0 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600367] ?
__check_object_size.part.0+0x3a/0x150
Jan 3 17:16:33 linuxkiste kernel: [164294.600372] ? __fget_files+0x86/0xc0
Jan 3 17:16:33 linuxkiste kernel: [164294.600376] __x64_sys_ioctl+0x95/0xd0
Jan 3 17:16:33 linuxkiste kernel: [164294.600379] do_syscall_64+0x5c/0xc0
Jan 3 17:16:33 linuxkiste kernel: [164294.600383] ? __fget_files+0x86/0xc0
Jan 3 17:16:33 linuxkiste kernel: [164294.600386] ? fput+0x13/0x20
Jan 3 17:16:33 linuxkiste kernel: [164294.600388] ?
exit_to_user_mode_prepare+0x37/0xb0
Jan 3 17:16:33 linuxkiste kernel: [164294.600392] ?
syscall_exit_to_user_mode+0x27/0x50
Jan 3 17:16:33 linuxkiste kernel: [164294.600395] ? do_syscall_64+0x69/0xc0
Jan 3 17:16:33 linuxkiste kernel: [164294.600397] ? irqentry_exit+0x1d/0x30
Jan 3 17:16:33 linuxkiste kernel: [164294.600399] ? exc_page_fault+0x89/0x170
Jan 3 17:16:33 linuxkiste kernel: [164294.600402]
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Jan 3 17:16:33 linuxkiste kernel: [164294.600406] RIP: 0033:0x7f3c97b93aff
Jan 3 17:16:33 linuxkiste kernel: [164294.600408] Code: 00 48 89 44 24 18 31
c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44
24 10 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 77 1f 48 8b 44 24 18 64 48
2b 04 25 28 00
Jan 3 17:16:33 linuxkiste kernel: [164294.600410] RSP: 002b:00007fffc65150c0
EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Jan 3 17:16:33 linuxkiste kernel: [164294.600412] RAX: ffffffffffffffda RBX:
00007fffc6515250 RCX: 00007f3c97b93aff
Jan 3 17:16:33 linuxkiste kernel: [164294.600413] RDX: 00007fffc6515250 RSI:
0000000040406469 RDI: 0000000000000018
Jan 3 17:16:33 linuxkiste kernel: [164294.600414] RBP: 0000000000000018 R08:
0000000000000001 R09: 0000000000000008
Jan 3 17:16:33 linuxkiste kernel: [164294.600416] R10: 00001000013c0f80 R11:
0000000000000246 R12: 00007fffc6515250
Jan 3 17:16:33 linuxkiste kernel: [164294.600417] R13: 0000000000000000 R14:
00007f3c89c82bb8 R15: 0000100000372000
Jan 3 17:16:33 linuxkiste kernel: [164294.600419] </TASK>
Jan 3 17:16:33 linuxkiste kernel: [164294.600420] Modules linked in: tls ntfs3
uas usb_storage nls_utf8 cifs cifs_arc4 cifs_md4 fscache netfs vboxnetadp(OE)
vboxnetflt(OE) vboxdrv(OE) rfcomm cmac algif_hash algif_skcipher af_alg bnep
binfmt_misc mei_hdcp intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal
intel_powerclamp coretemp kvm_intel kvm rapl snd_hda_codec_realtek intel_cstate
snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi nls_iso8859_1
snd_hda_intel joydev snd_intel_dspcfg btusb at24 snd_intel_sdw_acpi
snd_hda_codec snd_hda_core btrtl snd_hwdep btbcm snd_pcm input_leds
snd_seq_midi btintel snd_seq_midi_event bluetooth snd_rawmidi ecdh_generic ecc
snd_seq mei_me snd_seq_device snd_timer snd mei soundcore mac_hid
intel_smartconnect sch_fq_codel msr parport_pc ppdev lp parport ramoops
reed_solomon pstore_blk pstore_zone efi_pstore ip_tables x_tables autofs4 btrfs
blake2b_generic xor zstd_compress raid6_pq libcrc32c dm_crypt hid_generic
usbhid hid i915 i2c_algo_bit ttm
drm_kms_helper syscopyarea sysfillrect
Jan 3 17:16:33 linuxkiste kernel: [164294.600481] sysimgblt fb_sys_fops cec
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i2c_i801 aesni_intel ahci
rc_core crypto_simd r8169 mxm_wmi cryptd i2c_smbus libahci lpc_ich realtek drm
xhci_pci xhci_pci_renesas wmi video
Jan 3 17:16:33 linuxkiste kernel: [164294.600494] CR2: ffffe2fc51000008
Jan 3 17:16:33 linuxkiste kernel: [164294.600496] ---[ end trace
c11e39619ebb9be7 ]---
Jan 3 17:16:33 linuxkiste kernel: [164295.136110] RIP: 0010:kfree+0x68/0x250
Jan 3 17:16:33 linuxkiste kernel: [164295.136119] Code: 80 49 01 dc 0f 82 f2
01 00 00 48 c7 c0 00 00 00 80 48 2b 05 42 63 39 01 49 01 c4 49 c1 ec 0c 49 c1
e4 06 4c 03 25 20 63 39 01 <49> 8b 44 24 08 48 8d 50 ff a8 01 4c 0f 45 e2 49 8b
54 24 08 48 8d
Jan 3 17:16:33 linuxkiste kernel: [164295.136121] RSP: 0018:ffffb98e88c47930
EFLAGS: 00010286
Jan 3 17:16:33 linuxkiste kernel: [164295.136123] RAX: 00006bf380000000 RBX:
00000000400000c0 RCX: 0000000000392c14
Jan 3 17:16:33 linuxkiste kernel: [164295.136125] RDX: ffffb98e80000000 RSI:
ffffffffa04d669e RDI: 00000000400000c0
Jan 3 17:16:33 linuxkiste kernel: [164295.136126] RBP: ffffb98e88c47970 R08:
0000000000000000 R09: 0000000000000000
Jan 3 17:16:33 linuxkiste kernel: [164295.136127] R10: ffff940e24fc1000 R11:
ffff940e090c5ad4 R12: ffffe2fc51000000
Jan 3 17:16:33 linuxkiste kernel: [164295.136129] R13: 000000000000000a R14:
0000000000000000 R15: 0000000000000230
Jan 3 17:16:33 linuxkiste kernel: [164295.136130] FS: 00007f3c96764340(0000)
GS:ffff94100ea80000(0000) knlGS:0000000000000000
Jan 3 17:16:33 linuxkiste kernel: [164295.136131] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Jan 3 17:16:33 linuxkiste kernel: [164295.136133] CR2: ffffe2fc51000008 CR3:
00000001f49d8001 CR4: 00000000001706e0
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2001545
Title:
i915: repetable Kernel Oops after resuming from standby
Status in linux package in Ubuntu:
New
Bug description:
I have an Intel i915 Haswell system which - after upgrading from
Ubuntu 20.04 to 22.04 - experiences repeated crashes when resuming
from hibernation.
Unfortunately, "ubuntu-bug" claims my kernel package is "not an
official package" (which is untrue, at least to my knowledge - I
installed from the official sources) so I cannot use 'ubuntu-bug'.
$ cat /proc/version_signature
Ubuntu 5.15.0-56.62-generic 5.15.64
I will attach the lspci output.
This is the dmesg trace:
Jan 3 17:16:33 linuxkiste kernel: [164294.599802] BUG: unable to handle page
fault for address: ffffe2fc51000008
Jan 3 17:16:33 linuxkiste kernel: [164294.599809] #PF: supervisor read
access in kernel mode
Jan 3 17:16:33 linuxkiste kernel: [164294.599811] #PF: error_code(0x0000) -
not-present page
Jan 3 17:16:33 linuxkiste kernel: [164294.599813] PGD 0 P4D 0
Jan 3 17:16:33 linuxkiste kernel: [164294.599815] Oops: 0000 [#1] SMP PTI
Jan 3 17:16:33 linuxkiste kernel: [164294.599818] CPU: 1 PID: 93586 Comm:
chrome Tainted: G OE 5.15.0-56-generic #62-Ubuntu
Jan 3 17:16:33 linuxkiste kernel: [164294.599820] Hardware name: MSI
MS-7817/CSM-B85M-E45 (MS-7817), BIOS V10.9 04/21/2015
Jan 3 17:16:33 linuxkiste kernel: [164294.599822] RIP: 0010:kfree+0x68/0x250
Jan 3 17:16:33 linuxkiste kernel: [164294.599827] Code: 80 49 01 dc 0f 82 f2
01 00 00 48 c7 c0 00 00 00 80 48 2b 05 42 63 39 01 49 01 c4 49 c1 ec 0c 49 c1
e4 06 4c 03 25 20 63 39 01 <49> 8b 44 24 08 48 8d 50 ff a8 01 4c 0f 45 e2 49 8b
54 24 08 48 8d
Jan 3 17:16:33 linuxkiste kernel: [164294.599829] RSP: 0018:ffffb98e88c47930
EFLAGS: 00010286
Jan 3 17:16:33 linuxkiste kernel: [164294.599831] RAX: 00006bf380000000 RBX:
00000000400000c0 RCX: 0000000000392c14
Jan 3 17:16:33 linuxkiste kernel: [164294.599833] RDX: ffffb98e80000000 RSI:
ffffffffa04d669e RDI: 00000000400000c0
Jan 3 17:16:33 linuxkiste kernel: [164294.599834] RBP: ffffb98e88c47970 R08:
0000000000000000 R09: 0000000000000000
Jan 3 17:16:33 linuxkiste kernel: [164294.599835] R10: ffff940e24fc1000 R11:
ffff940e090c5ad4 R12: ffffe2fc51000000
Jan 3 17:16:33 linuxkiste kernel: [164294.599836] R13: 000000000000000a R14:
0000000000000000 R15: 0000000000000230
Jan 3 17:16:33 linuxkiste kernel: [164294.599837] FS:
00007f3c96764340(0000) GS:ffff94100ea80000(0000) knlGS:0000000000000000
Jan 3 17:16:33 linuxkiste kernel: [164294.599839] CS: 0010 DS: 0000 ES:
0000 CR0: 0000000080050033
Jan 3 17:16:33 linuxkiste kernel: [164294.599840] CR2: ffffe2fc51000008 CR3:
00000001f49d8001 CR4: 00000000001706e0
Jan 3 17:16:33 linuxkiste kernel: [164294.599842] Call Trace:
Jan 3 17:16:33 linuxkiste kernel: [164294.599843] <TASK>
Jan 3 17:16:33 linuxkiste kernel: [164294.599845] kvfree+0x2e/0x40
Jan 3 17:16:33 linuxkiste kernel: [164294.599850]
eb_relocate_parse_slow+0x133/0x470 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.599937]
eb_relocate_parse+0x129/0x1b0 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600009]
i915_gem_do_execbuffer+0x373/0xba0 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600083] ?
__alloc_pages+0x311/0x330
Jan 3 17:16:33 linuxkiste kernel: [164294.600088] ?
i915_memcpy_init_early+0x40/0x40 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600140]
i915_gem_execbuffer2_ioctl+0x12e/0x280 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600200] ?
i915_gem_do_execbuffer+0xba0/0xba0 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600256]
drm_ioctl_kernel+0xb3/0x100 [drm]
Jan 3 17:16:33 linuxkiste kernel: [164294.600290] drm_ioctl+0x268/0x4b0
[drm]
Jan 3 17:16:33 linuxkiste kernel: [164294.600308] ?
i915_gem_do_execbuffer+0xba0/0xba0 [i915]
Jan 3 17:16:33 linuxkiste kernel: [164294.600367] ?
__check_object_size.part.0+0x3a/0x150
Jan 3 17:16:33 linuxkiste kernel: [164294.600372] ? __fget_files+0x86/0xc0
Jan 3 17:16:33 linuxkiste kernel: [164294.600376] __x64_sys_ioctl+0x95/0xd0
Jan 3 17:16:33 linuxkiste kernel: [164294.600379] do_syscall_64+0x5c/0xc0
Jan 3 17:16:33 linuxkiste kernel: [164294.600383] ? __fget_files+0x86/0xc0
Jan 3 17:16:33 linuxkiste kernel: [164294.600386] ? fput+0x13/0x20
Jan 3 17:16:33 linuxkiste kernel: [164294.600388] ?
exit_to_user_mode_prepare+0x37/0xb0
Jan 3 17:16:33 linuxkiste kernel: [164294.600392] ?
syscall_exit_to_user_mode+0x27/0x50
Jan 3 17:16:33 linuxkiste kernel: [164294.600395] ? do_syscall_64+0x69/0xc0
Jan 3 17:16:33 linuxkiste kernel: [164294.600397] ? irqentry_exit+0x1d/0x30
Jan 3 17:16:33 linuxkiste kernel: [164294.600399] ?
exc_page_fault+0x89/0x170
Jan 3 17:16:33 linuxkiste kernel: [164294.600402]
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Jan 3 17:16:33 linuxkiste kernel: [164294.600406] RIP: 0033:0x7f3c97b93aff
Jan 3 17:16:33 linuxkiste kernel: [164294.600408] Code: 00 48 89 44 24 18 31
c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44
24 10 b8 10 00 00 00 0f 05 <41> 89 c0 3d 00 f0 ff ff 77 1f 48 8b 44 24 18 64 48
2b 04 25 28 00
Jan 3 17:16:33 linuxkiste kernel: [164294.600410] RSP: 002b:00007fffc65150c0
EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Jan 3 17:16:33 linuxkiste kernel: [164294.600412] RAX: ffffffffffffffda RBX:
00007fffc6515250 RCX: 00007f3c97b93aff
Jan 3 17:16:33 linuxkiste kernel: [164294.600413] RDX: 00007fffc6515250 RSI:
0000000040406469 RDI: 0000000000000018
Jan 3 17:16:33 linuxkiste kernel: [164294.600414] RBP: 0000000000000018 R08:
0000000000000001 R09: 0000000000000008
Jan 3 17:16:33 linuxkiste kernel: [164294.600416] R10: 00001000013c0f80 R11:
0000000000000246 R12: 00007fffc6515250
Jan 3 17:16:33 linuxkiste kernel: [164294.600417] R13: 0000000000000000 R14:
00007f3c89c82bb8 R15: 0000100000372000
Jan 3 17:16:33 linuxkiste kernel: [164294.600419] </TASK>
Jan 3 17:16:33 linuxkiste kernel: [164294.600420] Modules linked in: tls
ntfs3 uas usb_storage nls_utf8 cifs cifs_arc4 cifs_md4 fscache netfs
vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) rfcomm cmac algif_hash algif_skcipher
af_alg bnep binfmt_misc mei_hdcp intel_rapl_msr intel_rapl_common
x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm rapl
snd_hda_codec_realtek intel_cstate snd_hda_codec_generic ledtrig_audio
snd_hda_codec_hdmi nls_iso8859_1 snd_hda_intel joydev snd_intel_dspcfg btusb
at24 snd_intel_sdw_acpi snd_hda_codec snd_hda_core btrtl snd_hwdep btbcm
snd_pcm input_leds snd_seq_midi btintel snd_seq_midi_event bluetooth
snd_rawmidi ecdh_generic ecc snd_seq mei_me snd_seq_device snd_timer snd mei
soundcore mac_hid intel_smartconnect sch_fq_codel msr parport_pc ppdev lp
parport ramoops reed_solomon pstore_blk pstore_zone efi_pstore ip_tables
x_tables autofs4 btrfs blake2b_generic xor zstd_compress raid6_pq libcrc32c
dm_crypt hid_generic usbhid hid i915 i2c_algo_bit t
tm drm_kms_helper syscopyarea sysfillrect
Jan 3 17:16:33 linuxkiste kernel: [164294.600481] sysimgblt fb_sys_fops cec
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i2c_i801 aesni_intel ahci
rc_core crypto_simd r8169 mxm_wmi cryptd i2c_smbus libahci lpc_ich realtek drm
xhci_pci xhci_pci_renesas wmi video
Jan 3 17:16:33 linuxkiste kernel: [164294.600494] CR2: ffffe2fc51000008
Jan 3 17:16:33 linuxkiste kernel: [164294.600496] ---[ end trace
c11e39619ebb9be7 ]---
Jan 3 17:16:33 linuxkiste kernel: [164295.136110] RIP: 0010:kfree+0x68/0x250
Jan 3 17:16:33 linuxkiste kernel: [164295.136119] Code: 80 49 01 dc 0f 82 f2
01 00 00 48 c7 c0 00 00 00 80 48 2b 05 42 63 39 01 49 01 c4 49 c1 ec 0c 49 c1
e4 06 4c 03 25 20 63 39 01 <49> 8b 44 24 08 48 8d 50 ff a8 01 4c 0f 45 e2 49 8b
54 24 08 48 8d
Jan 3 17:16:33 linuxkiste kernel: [164295.136121] RSP: 0018:ffffb98e88c47930
EFLAGS: 00010286
Jan 3 17:16:33 linuxkiste kernel: [164295.136123] RAX: 00006bf380000000 RBX:
00000000400000c0 RCX: 0000000000392c14
Jan 3 17:16:33 linuxkiste kernel: [164295.136125] RDX: ffffb98e80000000 RSI:
ffffffffa04d669e RDI: 00000000400000c0
Jan 3 17:16:33 linuxkiste kernel: [164295.136126] RBP: ffffb98e88c47970 R08:
0000000000000000 R09: 0000000000000000
Jan 3 17:16:33 linuxkiste kernel: [164295.136127] R10: ffff940e24fc1000 R11:
ffff940e090c5ad4 R12: ffffe2fc51000000
Jan 3 17:16:33 linuxkiste kernel: [164295.136129] R13: 000000000000000a R14:
0000000000000000 R15: 0000000000000230
Jan 3 17:16:33 linuxkiste kernel: [164295.136130] FS:
00007f3c96764340(0000) GS:ffff94100ea80000(0000) knlGS:0000000000000000
Jan 3 17:16:33 linuxkiste kernel: [164295.136131] CS: 0010 DS: 0000 ES:
0000 CR0: 0000000080050033
Jan 3 17:16:33 linuxkiste kernel: [164295.136133] CR2: ffffe2fc51000008 CR3:
00000001f49d8001 CR4: 00000000001706e0
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