Public bug reported:
System suspend fails with a fatal kernel bug in jump_label code when
interacting with nvidia_modeset module on kernel 6.19.0-9-generic. The
crash occurs consistently during the suspend process, making suspend
functionality completely broken.
- **Distribution**: Ubuntu (version not specified, but using 6.19 kernel series)
- **Kernel**: 6.19.0-9-generic
- **NVIDIA Driver**: 590.48.01 (tested both open and proprietary variants)
- **GPU**: NVIDIA GTX 1660 Ti Mobile
- **Architecture**: x86_64
Error Message
```
jump_label: Fatal kernel bug, unexpected op at
nvkms_kthread_q_callback+0x73/0x180 [nvidia_modeset] (ffffffff)
arch/x86/kernel/jump_label.c:73
```
### Crash Location
The crash occurs during the suspend process:
```
freeze_processes+0xd1/0xe0
enter_state+0xdc/0x590
pm_suspend+0x49/0x90
```
The kernel attempts to patch jump labels in the nvidia_modeset module
during `freeze_processes()`, which triggers a fatal bug and causes
`systemd-sleep` to crash with SEGV (signal 11).
### Reproduction Steps
1. Boot system with kernel 6.19.0-9-generic
2. Load NVIDIA driver 590.48.01 (either open or proprietary)
3. Attempt system suspend: `systemctl suspend`
4. System crashes immediately with jump_label fatal kernel bug
**Reproducibility**: 100% - crashes on every suspend attempt
## Testing Performed
### Tested Configurations (ALL FAILED on 6.19.0-9-generic)
1. **NVIDIA open driver 590.48.01** - Crash with jump_label bug
2. **NVIDIA proprietary driver 590.48.01** - Identical crash with jump_label bug
3. **With NVIDIA kernel parameters** (`nvidia-drm.modeset=1
nvidia.NVreg_PreserveVideoMemoryAllocations=1`) - Same crash
4. **Without NVIDIA kernel parameters** - Same crash
5. **With ucsi_acpi blacklisted** - Same crash
6. **Without ucsi_acpi blacklist** - Same crash
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2143942
Title:
Suspend Crash: jump_label Fatal Kernel Bug in nvidia_modeset Module
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