This has started happening for me since upgrading linux-image-generic-
hwe-22.04 from 6.2.0.31.31~22.04.8 to 6.2.0.32.32~22.04.9. It is still
happening currently with 6.2.0.36.37~22.04.14.
I get this issue typically when (auto-) mounting or unmounting a CIFS
share that has VFS, resulting in a NULL pointer dereference in the
kernel and a soft lockup in the CPU. A recent example:
Oct 31 14:46:04 lipc-carsus kernel: ------------[ cut here ]------------
Oct 31 14:46:04 lipc-carsus kernel: WARNING: CPU: 4 PID: 29475 at
fs/cifs/connect.c:1979 __cifs_put_smb_ses+0x3dd/0x4d0 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: Modules linked in: nls_utf8 cifs cifs_arc4
cifs_md4 fscache netfs authenc echainiv esp4 ccm rfcomm nft_masq xfrm_user
xfrm_algo nft_chain_nat nf_nat bridge stp llc vhost_vsock
vmw_vsock_virtio_transp>
Oct 31 14:46:04 lipc-carsus kernel: soundwire_generic_allocation
soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof
snd_sof_utils snd_soc_hdac_hda snd_hda_ext_core snd_ctl_led
snd_soc_acpi_intel_match snd_soc_a>
Oct 31 14:46:04 lipc-carsus kernel: hid_multitouch mei intel_rapl_common
intel_soc_dts_iosf intel_pch_thermal int3403_thermal int340x_thermal_zone
int3400_thermal dell_smo8800 intel_hid acpi_thermal_rel mac_hid acpi_pad
sparse_keymap >
Oct 31 14:46:04 lipc-carsus kernel: CPU: 4 PID: 29475 Comm: umount Tainted: P
OE 6.2.0-35-generic #35~22.04.1-Ubuntu
Oct 31 14:46:04 lipc-carsus kernel: Hardware name: Dell Inc. Latitude
5591/0DVVG1, BIOS 1.28.0 07/04/2023
Oct 31 14:46:04 lipc-carsus kernel: RIP: 0010:__cifs_put_smb_ses+0x3dd/0x4d0
[cifs]
Oct 31 14:46:04 lipc-carsus kernel: Code: e8 48 c7 c1 70 82 d5 c1 48 c7 c2 30
34 d8 c1 41 89 c1 48 c7 c6 68 cf d6 c1 48 c7 c7 d0 97 dc c1 e8 a8 65 98 c8 e9
21 ff ff ff <0f> 0b e9 a6 fc ff ff 49 8d 5e 20 48 89 df e8 00 f7 1c c9 48 c7 c6
Oct 31 14:46:04 lipc-carsus kernel: RSP: 0018:ffffa923d8067d20 EFLAGS: 00010286
Oct 31 14:46:04 lipc-carsus kernel: RAX: 00000000ffffffff RBX: ffff8a8d13f0eee8
RCX: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: RDX: 0000000000000000 RSI: 0000000000000000
RDI: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: RBP: ffffa923d8067d50 R08: 0000000000000000
R09: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: R10: 0000000000000000 R11: 0000000000000000
R12: ffff8a8ddf627000
Oct 31 14:46:04 lipc-carsus kernel: R13: ffff8a8ddf627038 R14: 0000000000000000
R15: ffff8a8ddf627000
Oct 31 14:46:04 lipc-carsus kernel: FS: 00007f7c7b2ac800(0000)
GS:ffff8a906c300000(0000) knlGS:0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Oct 31 14:46:04 lipc-carsus kernel: CR2: 000055b1b50e4400 CR3: 000000039631e002
CR4: 00000000003706e0
Oct 31 14:46:04 lipc-carsus kernel: DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
Oct 31 14:46:04 lipc-carsus kernel: Call Trace:
Oct 31 14:46:04 lipc-carsus kernel: <TASK>
Oct 31 14:46:04 lipc-carsus kernel: ? show_regs+0x72/0x90
Oct 31 14:46:04 lipc-carsus kernel: ? __cifs_put_smb_ses+0x3dd/0x4d0 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: ? __warn+0x8d/0x160
Oct 31 14:46:04 lipc-carsus kernel: ? __cifs_put_smb_ses+0x3dd/0x4d0 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: ? report_bug+0x1bb/0x1d0
Oct 31 14:46:04 lipc-carsus kernel: ? handle_bug+0x46/0x90
Oct 31 14:46:04 lipc-carsus kernel: ? exc_invalid_op+0x19/0x80
Oct 31 14:46:04 lipc-carsus kernel: ? asm_exc_invalid_op+0x1b/0x20
Oct 31 14:46:04 lipc-carsus kernel: ? __cifs_put_smb_ses+0x3dd/0x4d0 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: tconInfoFree+0x9b/0x110 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: cifs_put_tcon.part.0+0x109/0x2d0 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: cifs_put_tlink+0x4a/0x90 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: cifs_umount+0x59/0xb0 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: cifs_kill_sb+0x50/0x60 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: deactivate_locked_super+0x32/0xb0
Oct 31 14:46:04 lipc-carsus kernel: deactivate_super+0x4a/0x60
Oct 31 14:46:04 lipc-carsus kernel: cleanup_mnt+0x105/0x170
Oct 31 14:46:04 lipc-carsus kernel: __cleanup_mnt+0x12/0x20
Oct 31 14:46:04 lipc-carsus kernel: task_work_run+0x5e/0xa0
Oct 31 14:46:04 lipc-carsus kernel: exit_to_user_mode_loop+0x111/0x140
Oct 31 14:46:04 lipc-carsus kernel: exit_to_user_mode_prepare+0xb9/0xd0
Oct 31 14:46:04 lipc-carsus kernel: syscall_exit_to_user_mode+0x2a/0x60
Oct 31 14:46:04 lipc-carsus kernel: do_syscall_64+0x69/0x90
Oct 31 14:46:04 lipc-carsus kernel: ? do_syscall_64+0x69/0x90
Oct 31 14:46:04 lipc-carsus kernel: ? exc_page_fault+0x92/0x1b0
Oct 31 14:46:04 lipc-carsus kernel: entry_SYSCALL_64_after_hwframe+0x73/0xdd
Oct 31 14:46:04 lipc-carsus kernel: RIP: 0033:0x7f7c7b125c2b
Oct 31 14:46:04 lipc-carsus kernel: Code: 0b 32 0f 00 f7 d8 64 89 01 48 83 c8
ff c3 90 f3 0f 1e fa 31 f6 e9 05 00 00 00 0f 1f 44 00 00 f3 0f 1e fa b8 a6 00
00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 d1 31 0f 00 f7 d8
Oct 31 14:46:04 lipc-carsus kernel: RSP: 002b:00007fff79420cd8 EFLAGS: 00000246
ORIG_RAX: 00000000000000a6
Oct 31 14:46:04 lipc-carsus kernel: RAX: 0000000000000000 RBX: 000055fcd29f11a0
RCX: 00007f7c7b125c2b
Oct 31 14:46:04 lipc-carsus kernel: RDX: 0000000000000000 RSI: 0000000000000000
RDI: 000055fcd29f0cd0
Oct 31 14:46:04 lipc-carsus kernel: RBP: 000055fcd29f0aa0 R08: 0000000000000000
R09: 000055fcd29f1fa0
Oct 31 14:46:04 lipc-carsus kernel: R10: 000055fcd29f2e50 R11: 0000000000000246
R12: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: R13: 000055fcd29f0cd0 R14: 000055fcd29f0bb0
R15: 000055fcd29f0aa0
Oct 31 14:46:04 lipc-carsus kernel: </TASK>
Oct 31 14:46:04 lipc-carsus kernel: ---[ end trace 0000000000000000 ]---
Oct 31 14:46:04 lipc-carsus kernel: BUG: kernel NULL pointer dereference,
address: 0000000000000008
Oct 31 14:46:04 lipc-carsus kernel: #PF: supervisor write access in kernel mode
Oct 31 14:46:04 lipc-carsus kernel: #PF: error_code(0x0002) - not-present page
Oct 31 14:46:04 lipc-carsus kernel: PGD 0 P4D 0
Oct 31 14:46:04 lipc-carsus kernel: Oops: 0002 [#1] PREEMPT SMP PTI
Oct 31 14:46:04 lipc-carsus kernel: CPU: 4 PID: 29475 Comm: umount Tainted: P
W OE 6.2.0-35-generic #35~22.04.1-Ubuntu
Oct 31 14:46:04 lipc-carsus kernel: Hardware name: Dell Inc. Latitude
5591/0DVVG1, BIOS 1.28.0 07/04/2023
Oct 31 14:46:04 lipc-carsus kernel: RIP: 0010:__cifs_put_smb_ses+0xe0/0x4d0
[cifs]
Oct 31 14:46:04 lipc-carsus kernel: Code: f8 02 0f 84 1b 02 00 00 48 c7 c7 88
5f dd c1 41 bf 01 00 00 00 e8 20 fa 1c c9 49 8b 14 24 49 8b 44 24 08 48 c7 c7
88 5f dd c1 <48> 89 42 08 48 89 10 4d 89 24 24 4d 89 64 24 08 e8 3b fb 1c c9 49
Oct 31 14:46:04 lipc-carsus kernel: RSP: 0018:ffffa923d8067d20 EFLAGS: 00010246
Oct 31 14:46:04 lipc-carsus kernel: RAX: 0000000000000000 RBX: ffff8a8d13f0eee8
RCX: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: RDX: 0000000000000000 RSI: 0000000000000000
RDI: ffffffffc1dd5f88
Oct 31 14:46:04 lipc-carsus kernel: RBP: ffffa923d8067d50 R08: 0000000000000000
R09: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: R10: 0000000000000000 R11: 0000000000000000
R12: ffff8a8ddf627000
Oct 31 14:46:04 lipc-carsus kernel: R13: ffff8a8ddf627038 R14: 0000000000000000
R15: 0000000000000001
Oct 31 14:46:04 lipc-carsus kernel: FS: 00007f7c7b2ac800(0000)
GS:ffff8a906c300000(0000) knlGS:0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Oct 31 14:46:04 lipc-carsus kernel: CR2: 0000000000000008 CR3: 000000039631e002
CR4: 00000000003706e0
Oct 31 14:46:04 lipc-carsus kernel: DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
Oct 31 14:46:04 lipc-carsus kernel: Call Trace:
Oct 31 14:46:04 lipc-carsus kernel: <TASK>
Oct 31 14:46:04 lipc-carsus kernel: ? show_regs+0x72/0x90
Oct 31 14:46:04 lipc-carsus kernel: ? __die+0x25/0x80
Oct 31 14:46:04 lipc-carsus kernel: ? page_fault_oops+0x79/0x190
Oct 31 14:46:04 lipc-carsus kernel: ? do_user_addr_fault+0x30c/0x640
Oct 31 14:46:04 lipc-carsus kernel: ? report_bug+0x1bb/0x1d0
Oct 31 14:46:04 lipc-carsus kernel: ? exc_page_fault+0x81/0x1b0
Oct 31 14:46:04 lipc-carsus kernel: ? asm_exc_page_fault+0x27/0x30
Oct 31 14:46:04 lipc-carsus kernel: ? __cifs_put_smb_ses+0xe0/0x4d0 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: tconInfoFree+0x9b/0x110 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: cifs_put_tcon.part.0+0x109/0x2d0 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: cifs_put_tlink+0x4a/0x90 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: cifs_umount+0x59/0xb0 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: cifs_kill_sb+0x50/0x60 [cifs]
Oct 31 14:46:04 lipc-carsus kernel: deactivate_locked_super+0x32/0xb0
Oct 31 14:46:04 lipc-carsus kernel: deactivate_super+0x4a/0x60
Oct 31 14:46:04 lipc-carsus kernel: cleanup_mnt+0x105/0x170
Oct 31 14:46:04 lipc-carsus kernel: __cleanup_mnt+0x12/0x20
Oct 31 14:46:04 lipc-carsus kernel: task_work_run+0x5e/0xa0
Oct 31 14:46:04 lipc-carsus kernel: exit_to_user_mode_loop+0x111/0x140
Oct 31 14:46:04 lipc-carsus kernel: exit_to_user_mode_prepare+0xb9/0xd0
Oct 31 14:46:04 lipc-carsus kernel: syscall_exit_to_user_mode+0x2a/0x60
Oct 31 14:46:04 lipc-carsus kernel: do_syscall_64+0x69/0x90
Oct 31 14:46:04 lipc-carsus kernel: ? do_syscall_64+0x69/0x90
Oct 31 14:46:04 lipc-carsus kernel: ? exc_page_fault+0x92/0x1b0
Oct 31 14:46:04 lipc-carsus kernel: entry_SYSCALL_64_after_hwframe+0x73/0xdd
Oct 31 14:46:04 lipc-carsus kernel: RIP: 0033:0x7f7c7b125c2b
Oct 31 14:46:04 lipc-carsus kernel: Code: 0b 32 0f 00 f7 d8 64 89 01 48 83 c8
ff c3 90 f3 0f 1e fa 31 f6 e9 05 00 00 00 0f 1f 44 00 00 f3 0f 1e fa b8 a6 00
00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 d1 31 0f 00 f7 d8
Oct 31 14:46:04 lipc-carsus kernel: RSP: 002b:00007fff79420cd8 EFLAGS: 00000246
ORIG_RAX: 00000000000000a6
Oct 31 14:46:04 lipc-carsus kernel: RAX: 0000000000000000 RBX: 000055fcd29f11a0
RCX: 00007f7c7b125c2b
Oct 31 14:46:04 lipc-carsus kernel: RDX: 0000000000000000 RSI: 0000000000000000
RDI: 000055fcd29f0cd0
Oct 31 14:46:04 lipc-carsus kernel: RBP: 000055fcd29f0aa0 R08: 0000000000000000
R09: 000055fcd29f1fa0
Oct 31 14:46:04 lipc-carsus kernel: R10: 000055fcd29f2e50 R11: 0000000000000246
R12: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: R13: 000055fcd29f0cd0 R14: 000055fcd29f0bb0
R15: 000055fcd29f0aa0
Oct 31 14:46:04 lipc-carsus kernel: </TASK>
Oct 31 14:46:04 lipc-carsus kernel: Modules linked in: nls_utf8 cifs cifs_arc4
cifs_md4 fscache netfs authenc echainiv esp4 ccm rfcomm nft_masq xfrm_user
xfrm_algo nft_chain_nat nf_nat bridge stp llc vhost_vsock
vmw_vsock_virtio_transp>
Oct 31 14:46:04 lipc-carsus kernel: soundwire_generic_allocation
soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof
snd_sof_utils snd_soc_hdac_hda snd_hda_ext_core snd_ctl_led
snd_soc_acpi_intel_match snd_soc_a>
Oct 31 14:46:04 lipc-carsus kernel: hid_multitouch mei intel_rapl_common
intel_soc_dts_iosf intel_pch_thermal int3403_thermal int340x_thermal_zone
int3400_thermal dell_smo8800 intel_hid acpi_thermal_rel mac_hid acpi_pad
sparse_keymap >
Oct 31 14:46:04 lipc-carsus kernel: CR2: 0000000000000008
Oct 31 14:46:04 lipc-carsus kernel: ---[ end trace 0000000000000000 ]---
Oct 31 14:46:04 lipc-carsus kernel: RIP: 0010:__cifs_put_smb_ses+0xe0/0x4d0
[cifs]
Oct 31 14:46:04 lipc-carsus kernel: Code: f8 02 0f 84 1b 02 00 00 48 c7 c7 88
5f dd c1 41 bf 01 00 00 00 e8 20 fa 1c c9 49 8b 14 24 49 8b 44 24 08 48 c7 c7
88 5f dd c1 <48> 89 42 08 48 89 10 4d 89 24 24 4d 89 64 24 08 e8 3b fb 1c c9 49
Oct 31 14:46:04 lipc-carsus kernel: RSP: 0018:ffffa923d8067d20 EFLAGS: 00010246
Oct 31 14:46:04 lipc-carsus kernel: RAX: 0000000000000000 RBX: ffff8a8d13f0eee8
RCX: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: RDX: 0000000000000000 RSI: 0000000000000000
RDI: ffffffffc1dd5f88
Oct 31 14:46:04 lipc-carsus kernel: RBP: ffffa923d8067d50 R08: 0000000000000000
R09: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: R10: 0000000000000000 R11: 0000000000000000
R12: ffff8a8ddf627000
Oct 31 14:46:04 lipc-carsus kernel: R13: ffff8a8ddf627038 R14: 0000000000000000
R15: 0000000000000001
Oct 31 14:46:04 lipc-carsus kernel: FS: 00007f7c7b2ac800(0000)
GS:ffff8a906c300000(0000) knlGS:0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Oct 31 14:46:04 lipc-carsus kernel: CR2: 0000000000000008 CR3: 000000039631e002
CR4: 00000000003706e0
Oct 31 14:46:04 lipc-carsus kernel: DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
Oct 31 14:46:04 lipc-carsus kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
Oct 31 14:46:04 lipc-carsus kernel: note: umount[29475] exited with irqs
disabled
Oct 31 14:46:04 lipc-carsus kernel: note: umount[29475] exited with
preempt_count 1
Oct 31 14:46:04 lipc-carsus systemd[1]: mnt-networkdrive-Web-Folder2.mount:
Mount process exited, code=killed, status=9/KILL
Oct 31 14:46:04 lipc-carsus systemd[1]: mnt-networkdrive-Web-Folder2.mount:
Failed with result 'signal'.
Oct 31 14:46:04 lipc-carsus systemd[1]: Unmounted /mnt/networkdrive/Web/Folder2.
Oct 31 14:46:20 lipc-carsus kernel: [UFW BLOCK] IN=wlo1 OUT= MAC=
SRC=fe80:0000:0000:0000:2f9c:b9d8:2c7b:a2b2
DST=ff12:0000:0000:0000:0000:0000:0000:8384 LEN=316 TC=0 HOPLIMIT=1
FLOWLBL=426256 PROTO=UDP SPT=46719 DPT=21027 LEN=276
Oct 31 14:46:31 lipc-carsus kernel: watchdog: BUG: soft lockup - CPU#11 stuck
for 26s! [umount:29474]
Oct 31 14:46:31 lipc-carsus kernel: Modules linked in: nls_utf8 cifs cifs_arc4
cifs_md4 fscache netfs authenc echainiv esp4 ccm rfcomm nft_masq xfrm_user
xfrm_algo nft_chain_nat nf_nat bridge stp llc vhost_vsock
vmw_vsock_virtio_transp>
Oct 31 14:46:31 lipc-carsus kernel: soundwire_generic_allocation
soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof
snd_sof_utils snd_soc_hdac_hda snd_hda_ext_core snd_ctl_led
snd_soc_acpi_intel_match snd_soc_a>
Oct 31 14:46:31 lipc-carsus kernel: hid_multitouch mei intel_rapl_common
intel_soc_dts_iosf intel_pch_thermal int3403_thermal int340x_thermal_zone
int3400_thermal dell_smo8800 intel_hid acpi_thermal_rel mac_hid acpi_pad
sparse_keymap >
Oct 31 14:46:31 lipc-carsus kernel: CPU: 11 PID: 29474 Comm: umount Tainted: P
D W OE 6.2.0-35-generic #35~22.04.1-Ubuntu
Oct 31 14:46:31 lipc-carsus kernel: Hardware name: Dell Inc. Latitude
5591/0DVVG1, BIOS 1.28.0 07/04/2023
Oct 31 14:46:31 lipc-carsus kernel: RIP:
0010:native_queued_spin_lock_slowpath+0x8f/0x330
Oct 31 14:46:31 lipc-carsus kernel: Code: 0f 92 c2 41 8b 04 24 0f b6 d2 c1 e2
08 30 e4 09 d0 a9 00 01 ff ff 0f 85 10 02 00 00 85 c0 74 12 41 8b 04 24 84 c0
74 0a f3 90 <41> 8b 04 24 84 c0 75 f6 b8 01 00 00 00 66 41 89 04 24 5b 41 5c 41
Oct 31 14:46:31 lipc-carsus kernel: RSP: 0000:ffffa923d8047cc8 EFLAGS: 00000202
Oct 31 14:46:31 lipc-carsus kernel: RAX: 0000000000000101 RBX: ffff8a8d0ed99e40
RCX: 0000000000000000
Oct 31 14:46:31 lipc-carsus kernel: RDX: 0000000000000000 RSI: 0000000000000000
RDI: ffffffffc1dd5f88
Oct 31 14:46:31 lipc-carsus kernel: RBP: ffffa923d8047cf0 R08: 0000000000000000
R09: 0000000000000000
Oct 31 14:46:31 lipc-carsus kernel: R10: 0000000000000000 R11: 0000000000000000
R12: ffffffffc1dd5f88
Oct 31 14:46:31 lipc-carsus kernel: R13: 000000000000004f R14: ffff8a8d20b5e800
R15: 0000000000000001
Oct 31 14:46:31 lipc-carsus kernel: FS: 00007ff3ab6d4800(0000)
GS:ffff8a906c4c0000(0000) knlGS:0000000000000000
Oct 31 14:46:31 lipc-carsus kernel: CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Oct 31 14:46:31 lipc-carsus kernel: CR2: 000055de1d211160 CR3: 000000030ea60004
CR4: 00000000003706e0
Oct 31 14:46:31 lipc-carsus kernel: DR0: 0000000000000000 DR1: 0000000000000000
DR2: 0000000000000000
Oct 31 14:46:31 lipc-carsus kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0
DR7: 0000000000000400
Oct 31 14:46:31 lipc-carsus kernel: Call Trace:
Oct 31 14:46:31 lipc-carsus kernel: <IRQ>
Oct 31 14:46:31 lipc-carsus kernel: ? show_regs+0x72/0x90
Oct 31 14:46:31 lipc-carsus kernel: ? watchdog_timer_fn+0x1e7/0x250
Oct 31 14:46:31 lipc-carsus kernel: ? __pfx_watchdog_timer_fn+0x10/0x10
Oct 31 14:46:31 lipc-carsus kernel: ? __hrtimer_run_queues+0x104/0x280
Oct 31 14:46:31 lipc-carsus kernel: ? clockevents_program_event+0xb2/0x140
Oct 31 14:46:31 lipc-carsus kernel: ? hrtimer_interrupt+0x101/0x250
Oct 31 14:46:31 lipc-carsus kernel: ? __sysvec_apic_timer_interrupt+0x61/0x140
Oct 31 14:46:31 lipc-carsus kernel: ? sysvec_apic_timer_interrupt+0x91/0xb0
Oct 31 14:46:31 lipc-carsus kernel: </IRQ>
Oct 31 14:46:31 lipc-carsus kernel: <TASK>
Oct 31 14:46:31 lipc-carsus kernel: ? asm_sysvec_apic_timer_interrupt+0x1b/0x20
Oct 31 14:46:31 lipc-carsus kernel: ?
native_queued_spin_lock_slowpath+0x8f/0x330
Oct 31 14:46:31 lipc-carsus kernel: _raw_spin_lock+0x3f/0x60
Oct 31 14:46:31 lipc-carsus kernel: __cifs_put_smb_ses+0xd0/0x4d0 [cifs]
Oct 31 14:46:31 lipc-carsus kernel: ? tconInfoFree+0xb9/0x110 [cifs]
Oct 31 14:46:31 lipc-carsus kernel: cifs_put_tcon.part.0+0x118/0x2d0 [cifs]
Oct 31 14:46:31 lipc-carsus kernel: cifs_put_tlink+0x4a/0x90 [cifs]
Oct 31 14:46:31 lipc-carsus kernel: cifs_umount+0x59/0xb0 [cifs]
Oct 31 14:46:31 lipc-carsus kernel: cifs_kill_sb+0x50/0x60 [cifs]
Oct 31 14:46:31 lipc-carsus kernel: deactivate_locked_super+0x32/0xb0
Oct 31 14:46:31 lipc-carsus kernel: deactivate_super+0x4a/0x60
Oct 31 14:46:31 lipc-carsus kernel: cleanup_mnt+0x105/0x170
Oct 31 14:46:31 lipc-carsus kernel: __cleanup_mnt+0x12/0x20
Oct 31 14:46:31 lipc-carsus kernel: task_work_run+0x5e/0xa0
Oct 31 14:46:31 lipc-carsus kernel: exit_to_user_mode_loop+0x111/0x140
Oct 31 14:46:31 lipc-carsus kernel: exit_to_user_mode_prepare+0xb9/0xd0
Oct 31 14:46:31 lipc-carsus kernel: syscall_exit_to_user_mode+0x2a/0x60
Oct 31 14:46:31 lipc-carsus kernel: do_syscall_64+0x69/0x90
Oct 31 14:46:31 lipc-carsus kernel: ? syscall_exit_to_user_mode+0x38/0x60
Oct 31 14:46:31 lipc-carsus kernel: ? do_syscall_64+0x69/0x90
Oct 31 14:46:31 lipc-carsus kernel: ? exit_to_user_mode_prepare+0x3b/0xd0
Oct 31 14:46:31 lipc-carsus kernel: ? syscall_exit_to_user_mode+0x38/0x60
Oct 31 14:46:31 lipc-carsus kernel: ? do_syscall_64+0x69/0x90
Oct 31 14:46:31 lipc-carsus kernel: entry_SYSCALL_64_after_hwframe+0x73/0xdd
Oct 31 14:46:31 lipc-carsus kernel: RIP: 0033:0x7ff3ab525c2b
Oct 31 14:46:31 lipc-carsus kernel: Code: 0b 32 0f 00 f7 d8 64 89 01 48 83 c8
ff c3 90 f3 0f 1e fa 31 f6 e9 05 00 00 00 0f 1f 44 00 00 f3 0f 1e fa b8 a6 00
00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 d1 31 0f 00 f7 d8
Oct 31 14:46:31 lipc-carsus kernel: RSP: 002b:00007ffef80064f8 EFLAGS: 00000246
ORIG_RAX: 00000000000000a6
Oct 31 14:46:31 lipc-carsus kernel: RAX: 0000000000000000 RBX: 0000556e9c9971a0
RCX: 00007ff3ab525c2b
Oct 31 14:46:31 lipc-carsus kernel: RDX: 0000000000000000 RSI: 0000000000000000
RDI: 0000556e9c996cd0
Oct 31 14:46:31 lipc-carsus kernel: RBP: 0000556e9c996aa0 R08: 0000000000000000
R09: 0000556e9c997d70
Oct 31 14:46:31 lipc-carsus kernel: R10: 0000000000000000 R11: 0000000000000246
R12: 0000000000000000
Oct 31 14:46:31 lipc-carsus kernel: R13: 0000556e9c996cd0 R14: 0000556e9c996bb0
R15: 0000556e9c996aa0
Oct 31 14:46:31 lipc-carsus kernel: </TASK>
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https://bugs.launchpad.net/bugs/2039755
Title:
lernel crashes in CIFS code
Status in linux-signed-hwe-6.2 package in Ubuntu:
Confirmed
Bug description:
I've had several crashes like this on 2 different systems mounting the
same SMB server.
Oct 19 13:25:47 1y51573u kernel: [ 1103.030468] ------------[ cut here
]------------
Oct 19 13:25:47 1y51573u kernel: [ 1103.030477] WARNING: CPU: 2 PID: 5411 at
fs/cifs/connect.c:1979 __cifs_put_smb_ses+0x3dd/0x4d0 [cifs]
Oct 19 13:25:47 1y51573u kernel: [ 1103.030684] Modules linked in: nls_utf8
cifs cifs_arc4 cifs_md4 fscache netfs ccm xt_conntrack nft_chain_nat
xt_MASQUERADE nf_nat nf_conntrack_netlink nf_conntrack nf_defrag_ipv6
nf_defrag_ipv4 xfrm_u
ser xfrm_algo xt_addrtype nft_compat nf_tables nfnetlink br_netfilter bridge
stp llc rfcomm cmac algif_hash algif_skcipher af_alg bnep snd_hda_codec_hdmi
overlay zram snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel
soundw
ire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci
snd_sof_xtensa_dsp snd_sof snd_sof_utils snd_soc_hdac_hda snd_hda_ext_core
snd_soc_acpi_intel_match snd_soc_acpi soundwire_bus mei_pxp mei_hdcp
snd_soc_core snd_ctl_
led snd_compress intel_tcc_cooling ac97_bus snd_hda_codec_realtek
snd_pcm_dmaengine snd_hda_codec_generic x86_pkg_temp_thermal intel_rapl_msr
binfmt_misc intel_powerclamp joydev coretemp snd_hda_intel dell_rbtn
snd_intel_dspcfg snd_inte
l_sdw_acpi kvm_intel snd_hda_codec snd_hda_core snd_hwdep dell_laptop
dell_smm_hwmon
Oct 19 13:25:47 1y51573u kernel: [ 1103.030844] nls_iso8859_1 kvm snd_pcm
irqbypass snd_seq_midi rapl snd_seq_midi_event intel_cstate dell_wmi
snd_rawmidi serio_raw uvcvideo typec_displayport dell_wmi_sysman dell_smbios
snd_seq iwlmvm
btusb dcdbas btrtl snd_seq_device firmware_attributes_class ledtrig_audio
dell_wmi_descriptor videobuf2_vmalloc wmi_bmof intel_wmi_thunderbolt btbcm
mac80211 snd_timer videobuf2_memops cmdlinepart videobuf2_v4l2 btintel spi_nor
snd btmt
k mtd libarc4 soundcore videodev bluetooth
processor_thermal_device_pci_legacy hid_sensor_custom_intel_hinge
hid_sensor_als input_leds hid_sensor_gyro_3d videobuf2_common hid_multitouch
processor_thermal_device iwlwifi hid_sensor_trigge
r mc ecdh_generic processor_thermal_rfim industrialio_triggered_buffer
processor_thermal_mbox kfifo_buf mei_me ecc hid_sensor_iio_common cfg80211
processor_thermal_rapl mei industrialio intel_rapl_common intel_soc_dts_iosf
intel_pch_the
rmal int3403_thermal int340x_thermal_zone mac_hid int3400_thermal intel_hid
sparse_keymap
Oct 19 13:25:47 1y51573u kernel: [ 1103.030992] soc_button_array
acpi_thermal_rel acpi_pad sch_fq_codel msr parport_pc ppdev lp parport
efi_pstore ip_tables x_tables autofs4 btrfs blake2b_generic xor raid6_pq
libcrc32c r8153_ecm cdc_et
her usbnet r8152 dm_crypt mii usbhid hid_sensor_custom hid_sensor_hub
intel_ishtp_hid i915 drm_buddy i2c_algo_bit hid_generic ttm crct10dif_pclmul
drm_display_helper crc32_pclmul cec polyval_clmulni rc_core polyval_generic
ghash_clmulni
_intel drm_kms_helper sha512_ssse3 syscopyarea aesni_intel sysfillrect
rtsx_pci_sdmmc nvme sysimgblt intel_lpss_pci spi_intel_pc
i i2c_i801 ucsi_acpi intel_lpss crypto_simd nvme_core i2c_smbus xhci_pci
typec_ucsi spi_intel drm intel_ish_ipc psmouse thunderbolt nvme_common
i2c_hid_acpi rtsx_pci xhci_pci_renesas idma64 cryptd typec intel_ishtp i2c_hid
hid video wmi pinctrl_cannonlake z3fold zstd
Oct 19 13:25:47 1y51573u kernel: [ 1103.031153] CPU: 2 PID: 5411 Comm:
kworker/2:1 Not tainted 6.2.0-34-generic #34~22.04.1-Ubuntu
Oct 19 13:25:47 1y51573u kernel: [ 1103.031162] Hardware name: Dell Inc.
Latitude 7410/0M5G57, BIOS 1.24.0 07/06/2023
Oct 19 13:25:47 1y51573u kernel: [ 1103.031167] Workqueue: events
delayed_mntput
Oct 19 13:25:47 1y51573u kernel: [ 1103.031180] RIP:
0010:__cifs_put_smb_ses+0x3dd/0x4d0 [cifs]
Oct 19 13:25:47 1y51573u kernel: [ 1103.031364] Code: e8 48 c7 c1 70 32 fe c1
48 c7 c2 30 e4 00 c2 41 89 c1 48 c7 c6 68 7f ff c1 48 c7 c7 d0 47 05 c2 e8 a8
b5 4f de e9 21 ff ff ff <0f> 0b e9 a6 fc ff ff 49 8d 5e 20 48 89 df e8 00 47 d4
de 48 c7 c6
Oct 19 13:25:47 1y51573u kernel: [ 1103.031371] RSP: 0018:ffffb01c50b9bd38
EFLAGS: 00010286
Oct 19 13:25:47 1y51573u kernel: [ 1103.031378] RAX: 00000000ffffffff RBX:
ffff9d72da1353c0 RCX: 0000000000000000
Oct 19 13:25:47 1y51573u kernel: [ 1103.031383] RDX: 0000000000000000 RSI:
0000000000000000 RDI: 0000000000000000
Oct 19 13:25:47 1y51573u kernel: [ 1103.031387] RBP: ffffb01c50b9bd68 R08:
0000000000000000 R09: 0000000000000000
Oct 19 13:25:47 1y51573u kernel: [ 1103.031391] R10: 0000000000000000 R11:
0000000000000000 R12: ffff9d72ca687800
Oct 19 13:25:47 1y51573u kernel: [ 1103.031395] R13: ffff9d72ca687838 R14:
0000000000000000 R15: ffff9d764d7319c0
Oct 19 13:25:47 1y51573u kernel: [ 1103.031400] FS: 0000000000000000(0000)
GS:ffff9d764d700000(0000) knlGS:0000000000000000
Oct 19 13:25:47 1y51573u kernel: [ 1103.031405] CS: 0010 DS: 0000 ES: 0000
CR0: 0000000080050033
Oct 19 13:25:47 1y51573u kernel: [ 1103.031411] CR2: 00007f8ecb8df370 CR3:
0000000395e10006 CR4: 00000000003706e0
Oct 19 13:25:47 1y51573u kernel: [ 1103.031416] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Oct 19 13:25:47 1y51573u kernel: [ 1103.031420] DR3: 0000000000000000 DR6:
00000000fffe0ff0 DR7: 0000000000000400
Oct 19 13:25:47 1y51573u kernel: [ 1103.031424] Call Trace:
Oct 19 13:25:47 1y51573u kernel: [ 1103.031428] <TASK>
Oct 19 13:25:47 1y51573u kernel: [ 1103.031436] ? show_regs+0x72/0x90
Oct 19 13:25:47 1y51573u kernel: [ 1103.031448] ?
__cifs_put_smb_ses+0x3dd/0x4d0 [cifs]
Oct 19 13:25:47 1y51573u kernel: [ 1103.031629] ? __warn+0x8d/0x160
Oct 19 13:25:47 1y51573u kernel: [ 1103.031641] ?
__cifs_put_smb_ses+0x3dd/0x4d0 [cifs]
Oct 19 13:25:47 1y51573u kernel: [ 1103.031824] ? report_bug+0x1bb/0x1d0
Oct 19 13:25:47 1y51573u kernel: [ 1103.031834] ? handle_bug+0x46/0x90
Oct 19 13:25:47 1y51573u kernel: [ 1103.031847] ? exc_invalid_op+0x19/0x80
Oct 19 13:25:47 1y51573u kernel: [ 1103.031858] ?
asm_exc_invalid_op+0x1b/0x20
Oct 19 13:25:47 1y51573u kernel: [ 1103.031871] ?
__cifs_put_smb_ses+0x3dd/0x4d0 [cifs]
Oct 19 13:25:47 1y51573u kernel: [ 1103.032050] ?
__cifs_put_smb_ses+0x7d/0x4d0 [cifs]
Oct 19 13:25:47 1y51573u kernel: [ 1103.032227] ? tconInfoFree+0xb9/0x110
[cifs]
Oct 19 13:25:47 1y51573u kernel: [ 1103.032430]
cifs_put_tcon.part.0+0x125/0x2d0 [cifs]
Oct 19 13:25:47 1y51573u kernel: [ 1103.032611] cifs_put_tlink+0x4a/0x90
[cifs]
Oct 19 13:25:47 1y51573u kernel: [ 1103.032831] cifs_umount+0x59/0xb0 [cifs]
Oct 19 13:25:49 1y51573u kernel: [ 1103.033015] cifs_kill_sb+0x50/0x60 [cifs]
Oct 19 13:25:49 1y51573u kernel: [ 1103.033191]
deactivate_locked_super+0x32/0xb0
Oct 19 13:25:49 1y51573u kernel: [ 1103.033204] deactivate_super+0x4a/0x60
Oct 19 13:25:49 1y51573u kernel: [ 1103.033214] cleanup_mnt+0x105/0x170
Oct 19 13:25:49 1y51573u kernel: [ 1103.033223] delayed_mntput+0x2c/0x50
Oct 19 13:25:49 1y51573u kernel: [ 1103.033231] process_one_work+0x21c/0x440
Oct 19 13:25:49 1y51573u kernel: [ 1103.033242] worker_thread+0x50/0x3f0
Oct 19 13:25:49 1y51573u kernel: [ 1103.033251] ?
__pfx_worker_thread+0x10/0x10
Oct 19 13:25:49 1y51573u kernel: [ 1103.033259] kthread+0xeb/0x120
Oct 19 13:25:49 1y51573u kernel: [ 1103.033270] ? __pfx_kthread+0x10/0x10
Oct 19 13:25:49 1y51573u kernel: [ 1103.033280] ret_from_fork+0x29/0x50
Oct 19 13:25:49 1y51573u kernel: [ 1103.033292] </TASK>
Oct 19 13:25:49 1y51573u kernel: [ 1103.033295] ---[ end trace
0000000000000000 ]---
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-6.2.0-34-generic 6.2.0-34.34~22.04.1
ProcVersionSignature: Ubuntu 6.2.0-34.34~22.04.1-generic 6.2.16
Uname: Linux 6.2.0-34-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Thu Oct 19 13:45:46 2023
InstallationDate: Installed on 2023-04-14 (187 days ago)
InstallationMedia: Ubuntu 22.04.2 LTS "Jammy Jellyfish" - Release amd64
(20230223)
SourcePackage: linux-signed-hwe-6.2
UpgradeStatus: No upgrade log present (probably fresh install)
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