Kernel Bug?

[northernbrewer]

I have had problems with Linux crashing, and I have enabled crashdump. Especially one line in the logged dmesg I found interesting:
[ 8906.236858] kernel BUG at fs/inode.c:611!

Does this mean a kernel bug, or can it be something else?

I also have a full dump, but I don't really know how to use it

[ 8906.113043] ------------[ cut here ]------------
[ 8906.114514] WARNING: CPU: 10 PID: 7488 at mm/shmem.c:1173 shmem_evict_inode+0x226/0x260
[ 8906.115958] Modules linked in: tcp_diag inet_diag cmac nls_utf8 cifs cifs_arc4 rdma_cm iw_cm ib_cm ib_core cifs_md4 fscache netfs veth ebtable_filter ebtables ip_set ip6table_raw iptable_raw ip6table_filter ip6_tables iptable_filter bpfilter softdog nf_tables sunrpc bonding binfmt_misc tls nfnetlink_log nfnetlink intel_rapl_msr intel_rapl_common intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_sof_pci_intel_tgl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation irqbypass soundwire_cadence crct10dif_pclmul snd_sof_intel_hda polyval_clmulni polyval_generic snd_sof_pci ghash_clmulni_intel snd_sof_xtensa_dsp sha512_ssse3 aesni_intel snd_sof crypto_simd snd_sof_utils snd_soc_hdac_hda cryptd snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi rapl soundwire_bus pmt_telemetry intel_cstate pmt_class snd_soc_core nouveau snd_hda_codec_realtek snd_compress ac97_bus snd_hda_codec_hdmi snd_hda_codec_generic snd_pcm_dmaengine cmdlinepart
[ 8906.115983]  mxm_wmi drm_ttm_helper eeepc_wmi ttm snd_hda_intel asus_wmi snd_intel_dspcfg ledtrig_audio spi_nor drm_display_helper sparse_keymap snd_intel_sdw_acpi pcspkr platform_profile wmi_bmof mtd snd_hda_codec cec snd_hda_core mei_me rc_core snd_hwdep mei snd_pcm drm_kms_helper snd_timer syscopyarea sysfillrect snd sysimgblt soundcore intel_vsec acpi_pad acpi_tad input_leds mac_hid zfs(PO) zunicode(PO) zzstd(O) zlua(O) zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) vhost_net vhost vhost_iotlb tap drm efi_pstore dmi_sysfs ip_tables x_tables autofs4 btrfs blake2b_generic xor raid6_pq simplefb dm_thin_pool hid_generic usbmouse uas dm_persistent_data usbkbd usb_storage usbhid hid dm_bio_prison dm_bufio libcrc32c xhci_pci mpt3sas xhci_pci_renesas nvme igb crc32_pclmul ahci igc raid_class spi_intel_pci xhci_hcd nvme_core i2c_i801 i2c_algo_bit intel_lpss_pci scsi_transport_sas spi_intel libahci i2c_smbus intel_lpss dca vmd nvme_common idma64 video wmi pinctrl_alderlake
[ 8906.131941] systemd-journald[815]: Compressed data object 990 -> 500 using ZSTD
[ 8906.148544] CPU: 10 PID: 7488 Comm: postgres Kdump: loaded Tainted: P    B      O       6.2.16-15-pve #1
[ 8906.148546] Hardware name: ASUS System Product Name/PRIME Z690-A, BIOS 2802 09/27/2023
[ 8906.148546] RIP: 0010:shmem_evict_inode+0x226/0x260
[ 8906.150555] systemd-journald[815]: Compressed data object 978 -> 560 using ZSTD
[ 8906.154257] Code: 02 00 00 00 48 8d 74 24 18 4c 89 ef e8 c3 98 dd ff 8b 43 e0 85 c0 75 e2 48 8d 74 24 18 4c 89 ef e8 7f 70 dd ff e9 57 ff ff ff <0f> 0b e9 24 fe ff ff 48 8b 47 50 8b 15 09 12 09 02 48 c7 c7 c0 ac
[ 8906.154258] RSP: 0018:ffffb5e3e6627d38 EFLAGS: 00010206
[ 8906.167925] RAX: 0000000000000000 RBX: ffff9216a3dc4f58 RCX: 0000000000000000
[ 8906.170025] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 8906.172133] RBP: ffffb5e3e6627da0 R08: 0000000000000000 R09: 0000000000000000
[ 8906.174255] R10: 0000000000000000 R11: 0000000000000000 R12: ffff9216a3dc4f08
[ 8906.176397] R13: ffff9216a3dc4ef8 R14: ffff922b5a70c780 R15: ffff922b5a70c780
[ 8906.178535] FS:  00007facffa2fa40(0000) GS:ffff92347f880000(0000) knlGS:0000000000000000
[ 8906.180679] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8906.182793] CR2: 00007fad000159f8 CR3: 0000000125550000 CR4: 0000000000752ee0
[ 8906.184890] PKRU: 55555554
[ 8906.186932] Call Trace:
[ 8906.188918]  <TASK>
[ 8906.190848]  ? show_regs+0x6d/0x80
[ 8906.192736]  ? __warn+0x89/0x160
[ 8906.194578]  ? shmem_evict_inode+0x226/0x260
[ 8906.196390]  ? report_bug+0x17e/0x1b0
[ 8906.198158]  ? handle_bug+0x46/0x90
[ 8906.199868]  ? exc_invalid_op+0x18/0x80
[ 8906.201538]  ? asm_exc_invalid_op+0x1b/0x20
[ 8906.203164]  ? shmem_evict_inode+0x226/0x260
[ 8906.204744]  ? shmem_evict_inode+0x43/0x260
[ 8906.206270]  ? __pfx_wake_bit_function+0x10/0x10
[ 8906.207753]  evict+0xc5/0x1d0
[ 8906.209184]  iput+0x14b/0x260
[ 8906.210564]  dentry_unlink_inode+0xd4/0x150
[ 8906.211907]  __dentry_kill+0xde/0x190
[ 8906.213206]  dput+0x19d/0x320
[ 8906.214453]  __fput+0xe9/0x270
[ 8906.215656]  ____fput+0xe/0x20
[ 8906.216819]  task_work_run+0x5e/0xa0
[ 8906.217953]  exit_to_user_mode_prepare+0x16b/0x190
[ 8906.219067]  syscall_exit_to_user_mode+0x29/0x60
[ 8906.220155]  do_syscall_64+0x67/0x90
[ 8906.221217]  ? do_syscall_64+0x67/0x90
[ 8906.222246]  entry_SYSCALL_64_after_hwframe+0x73/0xdd
[ 8906.223247] RIP: 0033:0x7facfff1ec6b
[ 8906.224214] Code: 8b 15 c9 a1 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 95 a1 0f 00 f7 d8 64 89 01 48
[ 8906.227298] RSP: 002b:00007ffe7e7c2ed8 EFLAGS: 00000206 ORIG_RAX: 000000000000000b
[ 8906.228404] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 00007facfff1ec6b
[ 8906.229520] RDX: 0000000000000000 RSI: 00000004181dc000 RDI: 00007fa8e553f000
[ 8906.230622] RBP: 00007ffe7e7c2ee0 R08: 0000000000000000 R09: 0000559c985d03c9
[ 8906.231696] R10: 0000000000000000 R11: 0000000000000206 R12: 0000559c98761960
[ 8906.232746] R13: 0000559c98763ae8 R14: 0000559c985e2b58 R15: 00000000ffffffff
[ 8906.233786]  </TASK>
[ 8906.234784] ---[ end trace 0000000000000000 ]---
[ 8906.235816] ------------[ cut here ]------------
[ 8906.236858] kernel BUG at fs/inode.c:611!
[ 8906.237907] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[ 8906.238977] CPU: 10 PID: 7488 Comm: postgres Kdump: loaded Tainted: P    B   W  O       6.2.16-15-pve #1
[ 8906.241194] Hardware name: ASUS System Product Name/PRIME Z690-A, BIOS 2802 09/27/2023
[ 8906.242384] RIP: 0010:clear_inode+0x7f/0x90
[ 8906.243575] Code: 28 01 00 00 48 8d 83 28 01 00 00 48 39 c2 75 22 48 c7 83 98 00 00 00 60 00 00 00 5b 41 5c 5d 31 c0 31 d2 31 ff c3 cc cc cc cc <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 0f 1f 80 00 00 00 00 90 90 90 90 90
[ 8906.247420] RSP: 0018:ffffb5e3e6627d18 EFLAGS: 00010002
[ 8906.248750] RAX: 0000000000000000 RBX: ffff9216a3dc4f58 RCX: 0000000000000000
[ 8906.250110] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 8906.251476] RBP: ffffb5e3e6627d28 R08: 0000000000000000 R09: 0000000000000000
[ 8906.252837] R10: 0000000000000000 R11: 0000000000000000 R12: ffff9216a3dc50d8
[ 8906.254203] R13: ffff9216a3dc4ef8 R14: ffff922b5a70c780 R15: ffff922b5a70c780
[ 8906.255583] FS:  00007facffa2fa40(0000) GS:ffff92347f880000(0000) knlGS:0000000000000000
[ 8906.257009] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8906.258449] CR2: 00007fad000159f8 CR3: 0000000125550000 CR4: 0000000000752ee0
[ 8906.259921] PKRU: 55555554
[ 8906.261376] Call Trace:
[ 8906.262819]  <TASK>
[ 8906.264243]  ? show_regs+0x6d/0x80
[ 8906.265674]  ? die+0x37/0xa0
[ 8906.267088]  ? do_trap+0xd4/0xf0
[ 8906.268489]  ? do_error_trap+0x71/0xb0
[ 8906.269860]  ? clear_inode+0x7f/0x90
[ 8906.271183]  ? exc_invalid_op+0x52/0x80
[ 8906.272473]  ? clear_inode+0x7f/0x90
[ 8906.273725]  ? asm_exc_invalid_op+0x1b/0x20
[ 8906.274964]  ? clear_inode+0x7f/0x90
[ 8906.276201]  ? clear_inode+0x1e/0x90
[ 8906.277417]  shmem_evict_inode+0x6c/0x260
[ 8906.278638]  ? __pfx_wake_bit_function+0x10/0x10
[ 8906.279861]  evict+0xc5/0x1d0
[ 8906.281054]  iput+0x14b/0x260
[ 8906.282235]  dentry_unlink_inode+0xd4/0x150
[ 8906.283424]  __dentry_kill+0xde/0x190
[ 8906.284606]  dput+0x19d/0x320
[ 8906.285771]  __fput+0xe9/0x270
[ 8906.286903]  ____fput+0xe/0x20
[ 8906.287994]  task_work_run+0x5e/0xa0
[ 8906.289053]  exit_to_user_mode_prepare+0x16b/0x190
[ 8906.290099]  syscall_exit_to_user_mode+0x29/0x60
[ 8906.291117]  do_syscall_64+0x67/0x90
[ 8906.292089]  ? do_syscall_64+0x67/0x90
[ 8906.293028]  entry_SYSCALL_64_after_hwframe+0x73/0xdd
[ 8906.293972] RIP: 0033:0x7facfff1ec6b
[ 8906.294892] Code: 8b 15 c9 a1 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 95 a1 0f 00 f7 d8 64 89 01 48
[ 8906.297932] RSP: 002b:00007ffe7e7c2ed8 EFLAGS: 00000206 ORIG_RAX: 000000000000000b
[ 8906.299009] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 00007facfff1ec6b
[ 8906.300072] RDX: 0000000000000000 RSI: 00000004181dc000 RDI: 00007fa8e553f000
[ 8906.301108] RBP: 00007ffe7e7c2ee0 R08: 0000000000000000 R09: 0000559c985d03c9
[ 8906.302132] R10: 0000000000000000 R11: 0000000000000206 R12: 0000559c98761960
[ 8906.303130] R13: 0000559c98763ae8 R14: 0000559c985e2b58 R15: 00000000ffffffff
[ 8906.304144]  </TASK>
[ 8906.305153] Modules linked in: tcp_diag inet_diag cmac nls_utf8 cifs cifs_arc4 rdma_cm iw_cm ib_cm ib_core cifs_md4 fscache netfs veth ebtable_filter ebtables ip_set ip6table_raw iptable_raw ip6table_filter ip6_tables iptable_filter bpfilter softdog nf_tables sunrpc bonding binfmt_misc tls nfnetlink_log nfnetlink intel_rapl_msr intel_rapl_common intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm snd_sof_pci_intel_tgl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation irqbypass soundwire_cadence crct10dif_pclmul snd_sof_intel_hda polyval_clmulni polyval_generic snd_sof_pci ghash_clmulni_intel snd_sof_xtensa_dsp sha512_ssse3 aesni_intel snd_sof crypto_simd snd_sof_utils snd_soc_hdac_hda cryptd snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi rapl soundwire_bus pmt_telemetry intel_cstate pmt_class snd_soc_core nouveau snd_hda_codec_realtek snd_compress ac97_bus snd_hda_codec_hdmi snd_hda_codec_generic snd_pcm_dmaengine cmdlinepart
[ 8906.305170]  mxm_wmi drm_ttm_helper eeepc_wmi ttm snd_hda_intel asus_wmi snd_intel_dspcfg ledtrig_audio spi_nor drm_display_helper sparse_keymap snd_intel_sdw_acpi pcspkr platform_profile wmi_bmof mtd snd_hda_codec cec snd_hda_core mei_me rc_core snd_hwdep mei snd_pcm drm_kms_helper snd_timer syscopyarea sysfillrect snd sysimgblt soundcore intel_vsec acpi_pad acpi_tad input_leds mac_hid zfs(PO) zunicode(PO) zzstd(O) zlua(O) zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) vhost_net vhost vhost_iotlb tap drm efi_pstore dmi_sysfs ip_tables x_tables autofs4 btrfs blake2b_generic xor raid6_pq simplefb dm_thin_pool hid_generic usbmouse uas dm_persistent_data usbkbd usb_storage usbhid hid dm_bio_prison dm_bufio libcrc32c xhci_pci mpt3sas xhci_pci_renesas nvme igb crc32_pclmul ahci igc raid_class spi_intel_pci xhci_hcd nvme_core i2c_i801 i2c_algo_bit intel_lpss_pci scsi_transport_sas spi_intel libahci i2c_smbus intel_lpss dca vmd nvme_common idma64 video wmi pinctrl_alderlake

 

[dos2unix]

Just curious... which kernel?

uname -a

 

[northernbrewer]

Just curious... which kernel?

uname -a

uname --a
Linux pve 6.2.16-15-pve #1 SMP PREEMPT_DYNAMIC PMX 6.2.16-15 (2023-09-28T13:53Z) x86_64 GNU/Linux

cat /proc/version
Linux version 6.2.16-15-pve (build@proxmox) (gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC PMX 6.2.16-15 (2023-09-28T13:53Z)

 

[aluzan]

Looks like I have the same problem.

[  720.764475] ------------[ cut here ]------------
[  720.764476] kernel BUG at fs/inode.c:611!
[  720.764481] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[  720.764483] CPU: 10 PID: 5645 Comm: python Tainted: P        W  OE      6.2.0-34-generic #34-Ubuntu
[  720.764485] Hardware name: ASUS System Product Name/ROG STRIX Z790-F GAMING WIFI, BIOS 1402 09/26/2023
[  720.764486] RIP: 0010:clear_inode+0x7f/0x90
[  720.764487] Code: 28 01 00 00 48 8d 83 28 01 00 00 48 39 c2 75 22 48 c7 83 98 00 00 00 60 00 00 00 5b 41 5c 5d 31 c0 31 d2 31 ff c3 cc cc cc cc <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 0f 1f 80 00 00 00 00 90 90 90 90 90
[  720.764489] RSP: 0018:ffffb458caccbc40 EFLAGS: 00010002
[  720.764490] RAX: 0000000000000000 RBX: ffff89945de60698 RCX: 0000000000000000
[  720.764491] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[  720.764492] RBP: ffffb458caccbc50 R08: 0000000000000000 R09: 0000000000000000
[  720.764493] R10: 0000000000000000 R11: 0000000000000000 R12: ffff89945de60818
[  720.764494] R13: ffff899259e63e40 R14: ffff899255a41680 R15: ffff899244b82840
[  720.764495] FS:  00007f6d82defb80(0000) GS:ffff89a17f280000(0000) knlGS:0000000000000000
[  720.764496] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  720.764497] CR2: 00007f6af6ba0000 CR3: 000000010fd26000 CR4: 0000000000750ee0
[  720.764498] PKRU: 55555554
[  720.764499] Call Trace:
[  720.764500]  <TASK>
[  720.764500]  ? show_regs+0x6d/0x80
[  720.764502]  ? die+0x37/0xa0
[  720.764504]  ? do_trap+0xd4/0xf0
[  720.764506]  ? do_error_trap+0x71/0xb0
[  720.764507]  ? clear_inode+0x7f/0x90
[  720.764509]  ? exc_invalid_op+0x52/0x80
[  720.764511]  ? clear_inode+0x7f/0x90
[  720.764513]  ? asm_exc_invalid_op+0x1b/0x20
[  720.764515]  ? clear_inode+0x7f/0x90
[  720.764516]  shmem_evict_inode+0x6c/0x260
[  720.764518]  ? __pfx_wake_bit_function+0x10/0x10
[  720.764520]  evict+0xc5/0x1d0
[  720.764522]  iput+0x14b/0x260
[  720.764524]  dentry_unlink_inode+0xd4/0x150
[  720.764526]  __dentry_kill+0xde/0x190
[  720.764527]  dput+0x152/0x320
[  720.764529]  __fput+0xe9/0x270
[  720.764530]  ____fput+0xe/0x20
[  720.764531]  task_work_run+0x5e/0xa0
[  720.764532]  exit_to_user_mode_loop+0x100/0x130
[  720.764534]  exit_to_user_mode_prepare+0xa5/0xb0
[  720.764536]  syscall_exit_to_user_mode+0x29/0x60
[  720.764538]  do_syscall_64+0x67/0x90
[  720.764540]  ? filp_close+0x5c/0xa0
[  720.764542]  ? exit_to_user_mode_prepare+0x30/0xb0
[  720.764544]  ? syscall_exit_to_user_mode+0x37/0x60
[  720.764545]  ? do_syscall_64+0x67/0x90
[  720.764547]  ? exc_page_fault+0x91/0x1b0
[  720.764548]  entry_SYSCALL_64_after_hwframe+0x73/0xdd
[  720.764550] RIP: 0033:0x7f6d82715f8b
[  720.764551] Code: 8b 15 91 fe 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 5d fe 0d 00 f7 d8 64 89 01 48
[  720.764552] RSP: 002b:00007ffe3a011de8 EFLAGS: 00000213 ORIG_RAX: 000000000000000b
[  720.764553] RAX: 0000000000000000 RBX: 000055a533c71030 RCX: 00007f6d82715f8b
[  720.764554] RDX: 0000000000000000 RSI: 000000000d800000 RDI: 00007f6af6800000
[  720.764555] RBP: 000055a533c71030 R08: 000055a5417d2300 R09: 0000000000000000
[  720.764556] R10: 0000000000000190 R11: 0000000000000213 R12: 0000000000000000
[  720.764557] R13: 00007f6cc6ec60a8 R14: 000055a5191817a0 R15: 00007f6cc6ec60a8
[  720.764558]  </TASK>
[  720.764558] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videodev videobuf2_common rfcomm cmac algif_hash algif_skcipher af_alg joydev input_leds bnep btusb btrtl btbcm btintel hid_generic btmtk bluetooth snd_usb_audio usbhid snd_usbmidi_lib hid mc ecdh_generic ecc snd_seq_dummy snd_hrtimer nvidia_uvm(POE) binfmt_misc nls_iso8859_1 snd_sof_pci_intel_tgl snd_sof_intel_hda_common soundwire_intel intel_rapl_msr nvidia_drm(POE) soundwire_generic_allocation intel_rapl_common soundwire_cadence intel_tcc_cooling nvidia_modeset(POE) snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp x86_pkg_temp_thermal intel_powerclamp snd_sof snd_sof_utils snd_soc_hdac_hda snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi soundwire_bus snd_hda_codec_hdmi snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec coretemp snd_hda_core snd_hwdep iwlmvm kvm_intel snd_pcm mac80211 kvm nvidia(POE) snd_seq_midi irqbypass
[  720.764581]  snd_seq_midi_event crct10dif_pclmul polyval_clmulni libarc4 polyval_generic snd_rawmidi ghash_clmulni_intel sha512_ssse3 snd_seq aesni_intel iwlwifi mei_hdcp mei_pxp cmdlinepart snd_seq_device drm_kms_helper crypto_simd snd_timer cryptd spi_nor rapl pmt_telemetry syscopyarea pmt_class asus_nb_wmi eeepc_wmi intel_cstate wmi_bmof cfg80211 sysfillrect snd mtd mei_me sysimgblt soundcore mei intel_vsec acpi_pad acpi_tad mac_hid msr parport_pc ppdev lp drm parport efi_pstore dmi_sysfs ip_tables x_tables autofs4 mfd_aaeon asus_wmi ledtrig_audio nvme sparse_keymap platform_profile nvme_core crc32_pclmul spi_intel_pci ahci i2c_i801 intel_lpss_pci igc spi_intel intel_lpss i2c_smbus libahci nvme_common xhci_pci idma64 vmd ucsi_acpi xhci_pci_renesas typec_ucsi video typec wmi pinctrl_alderlake
[  720.764607] ---[ end trace 0000000000000000 ]---

 

[arochester]

Have you saved old Kernels? Can you use another instead and see if it has the same problem?

 

[aluzan]

I previously tried ubuntu 20.04 (with 5.15 kernel). The problem was there. Also i tried to install my system on different ssd drive (but the same model) - same error.

 

[osprey]

I have had problems with Linux crashing, and I have enabled crashdump. Especially one line in the logged dmesg I found interesting:
[ 8906.236858] kernel BUG at fs/inode.c:611!

Does this mean a kernel bug, or can it be something else?

I also have a full dump, but I don't really know how to use it
<snip>

Also asked here:

Kernel Bug? -kernel BUG at fs/inode.c:611!

I have had problems with Linux crashing, and I have enabled crashdump. Especially one line in the logged dmesg I found interesting: [ 8906.236858] kernel BUG at fs/inode.c:611! Does this mean a kernel bug, or can it be something else? I also have a full dump, but I don't really know how to use...

forum.proxmox.com

Evidently it's a known kernel bug reported here: https://bugzilla.kernel.org/show_bug.cgi?id=215902.

It appears to be associated with the f2fs filesystem, which is used for NAND flash memory-based storage devices, such as SSD, eMMC, and SD cards.

 

[f33dm3bits]

I'm also running that same kernel on my Proxmox server and I think I may have experienced the same freezes/crashes every now and then but not sure because I never checked the tty output. I actually switched to the "5.15.107-2-pve" kernel today to see if that will make a difference.