Public bug reported:
while 6.18.0-8-generic works, the new -9 gives an oops on boot-up. This
might cause modules-load to hang which blocks the whole boot process.
```
Feb 03 10:07:39 systemd-modules-load[465]: Using 5 probe threads
Feb 03 10:07:39 systemd-modules-load[465]: Module 'i2c_dev' is built in
Feb 03 10:07:39 systemd-modules-load[465]: Inserted module 'msr'
Feb 03 10:07:39 systemd-modules-load[465]: Inserted module 'parport_pc'
Feb 03 10:09:09 systemd[1]: systemd-modules-load.service: start operation timed
out. Terminating.
```
```
Oops: general protection fault, probably for non-canonical address
0x6b6b6b6b6b6b6b6b: 0000 [#1] SMP PTI
CPU: 5 UID: 0 PID: 476 Comm: systemd-modules Not tainted 6.18.0-9-generic
#9-Ubuntu PREEMPT(voluntary)
Hardware name: LENOVO 20EQS6LJ00/20EQS6LJ00, BIOS N1EETA2W (1.75 ) 03/18/2024
RIP: 0010:parport_register_dev_model+0x2b4/0x3a0 [parport]
Code: 89 ff 49 c7 87 b0 03 00 00 00 00 00 00 49 89 87 90 03 00 00 48 8b 83 e0
04 00 00 49 c7 87 a8 03 00 00 00 00 00 00 48 8b 40 50 <2e> 2e 2e ff d0 f0 48 0f
ba ab 10 05 00 00 00 72 5c 4c 89 bb 18 05
RSP: 0018:ffffc9d8409ef9b8 EFLAGS: 00010246
RAX: 6b6b6b6b6b6b6b6b RBX: ffff89af50d90800 RCX: 0000000000000000
RDX: ffffffffc05f4c00 RSI: ffff89af417e2d90 RDI: ffff89af46251000
RBP: ffffc9d8409ef9f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9d8409efa08
R13: ffff89af50d90840 R14: ffff89af46251050 R15: ffff89af46251000
FS: 0000744f11bfe6c0(0000) GS:ffff89b71a0f0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007bca28ce30f0 CR3: 0000000102580006 CR4: 00000000003706f0
Call Trace:
<TASK>
lp_register+0x88/0x1d0 [lp]
? __pfx_lp_preempt+0x10/0x10 [lp]
? __pfx_port_check+0x10/0x10 [parport]
lp_attach+0x94/0x130 [lp]
? __pfx_port_detect+0x10/0x10 [parport]
port_check+0x2b/0x40 [parport]
bus_for_each_dev+0x8a/0xe0
__parport_register_driver+0x8f/0xd0 [parport]
lp_init+0x240/0x2b0 [lp]
? __pfx_lp_init_module+0x10/0x10 [lp]
lp_init_module+0x181/0xd30 [lp]
? __pfx_lp_init_module+0x10/0x10 [lp]
do_one_initcall+0x59/0x330
do_init_module+0x8b/0x290
load_module+0x817/0x910
init_module_from_file+0x9b/0x100
idempotent_init_module+0x10e/0x300
__x64_sys_finit_module+0x73/0xf0
x64_sys_call+0x1f04/0x2350
do_syscall_64+0x81/0x10d0
? rseq_get_rseq_cs.isra.0+0x16/0x240
? __rseq_handle_notify_resume+0xbb/0x1a0
? restore_fpregs_from_fpstate+0x46/0xe0
? switch_fpu_return+0x5c/0xf0
? arch_exit_to_user_mode_prepare.isra.0+0xc5/0xe0
? do_syscall_64+0xb9/0x10d0
? do_syscall_64+0xb9/0x10d0
? exc_page_fault+0x90/0x1b0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x744f12d3488d
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48
89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01
c3 48 8b 0d 53 c5 0d 00 f7 d8 64 89 01 48
RSP: 002b:0000744f11bfcb38 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 0000744f04008950 RCX: 0000744f12d3488d
RDX: 0000000000000004 RSI: 0000744f135da336 RDI: 000000000000000b
RBP: 0000744f11bfcbd0 R08: 0000000000000000 R09: 0000744f04008c30
R10: 0000000000000000 R11: 0000000000000246 R12: 0000744f135da336
R13: 0000000000020000 R14: 0000744f04008a70 R15: 0000000000000000
</TASK>
Modules linked in: lp(+) parport_pc ppdev(+) msr parport nvme_fabrics
efi_pstore nfnetlink dmi_sysfs autofs4 btrfs blake2b_generic xor raid6_pq
dm_crypt hid_plantronics hid_generic usbhid hid rtsx_pci_sdmmc thinkpad_acpi
nvram snd soundcore psmouse polyval_clmulni platform_profile
ghash_clmulni_intel sparse_keymap serio_raw rtsx_pci nvme video nvme_core
nvme_keyring nvme_auth hkdf e1000e ahci wmi libahci aesni_intel
---[ end trace 0000000000000000 ]---
RIP: 0010:parport_register_dev_model+0x2b4/0x3a0 [parport]
Code: 89 ff 49 c7 87 b0 03 00 00 00 00 00 00 49 89 87 90 03 00 00 48 8b 83 e0
04 00 00 49 c7 87 a8 03 00 00 00 00 00 00 48 8b 40 50 <2e> 2e 2e ff d0 f0 48 0f
ba ab 10 05 00 00 00 72 5c 4c 89 bb 18 05
RSP: 0018:ffffc9d8409ef9b8 EFLAGS: 00010246
RAX: 6b6b6b6b6b6b6b6b RBX: ffff89af50d90800 RCX: 0000000000000000
RDX: ffffffffc05f4c00 RSI: ffff89af417e2d90 RDI: ffff89af46251000
RBP: ffffc9d8409ef9f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc9d8409efa08
R13: ffff89af50d90840 R14: ffff89af46251050 R15: ffff89af46251000
FS: 0000744f11bfe6c0(0000) GS:ffff89b71a0f0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007bca28ce30f0 CR3: 0000000102580006 CR4: 00000000003706f0
```
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-6.18.0-9-generic 6.18.0-9.9
ProcVersionSignature: Ubuntu 6.18.0-8.8-generic 6.18.0
Uname: Linux 6.18.0-8-generic x86_64
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: sommer 3121 F.... wireplumber
/dev/snd/controlC0: sommer 3121 F.... wireplumber
/dev/snd/controlC1: sommer 3121 F.... wireplumber
/dev/snd/seq: sommer 3097 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Feb 3 10:14:30 2026
InstallationDate: Installed on 2023-04-24 (1016 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
IwDevWlp4s0Link: Not connected.
MachineType: LENOVO 20EQS6LJ00
ProcFB: 0 simpledrmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.18.0-8-generic
root=/dev/mapper/vgubuntu-root ro quiet systemd.show_status=auto panic=10
mitigations=off kaslr pti=on slab_nomerge page_poison=1 slub_debug=FPZ
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
firmware-sof N/A
linux-firmware 20260108.gitd86b47f7-0ubuntu1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/18/2024
dmi.bios.release: 1.75
dmi.bios.vendor: LENOVO
dmi.bios.version: N1EETA2W (1.75 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20EQS6LJ00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.18
dmi.modalias:
dmi:bvnLENOVO:bvrN1EETA2W(1.75):bd03/18/2024:br1.75:efr1.18:svnLENOVO:pn20EQS6LJ00:pvrThinkPadP50:rvnLENOVO:rn20EQS6LJ00:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20EQ_BU_Think_FM_ThinkPadP50:
dmi.product.family: ThinkPad P50
dmi.product.name: 20EQS6LJ00
dmi.product.sku: LENOVO_MT_20EQ_BU_Think_FM_ThinkPad P50
dmi.product.version: ThinkPad P50
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2139669
Title:
linux-6.18.0-9 fails with oops
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