| Summary: | sys-kernel/gentoo-sources-5.12.12 NULL pointer dereference on console unbind | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | Xuefer <xuefer> |
| Component: | Current packages | Assignee: | Gentoo Kernel Bug Wranglers and Kernel Maintainers <kernel> |
| Status: | RESOLVED NEEDINFO | ||
| Severity: | normal | CC: | mscardovi |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Attachments: |
dmesg unloading radeon
dmesg unloading amdgpu |
||
Created attachment 718527 [details]
dmesg unloading amdgpu
after i blacklist radeon, similar problem happens with amdgpu too
it seems unbind'ing before unloading gpu driver cause the problem
Is this still an issue with later kernels. |
Created attachment 718524 [details] dmesg unloading radeon gpu: vega 64 and HD 7850 on PCI-E slot motherboard: X399 SLI PLUS CPU: Ryzen Threadripper 1950X # cat test.sh #!/bin/bash +x echo 0 > /sys/class/vtconsole/vtcon0/bind echo 0 > /sys/class/vtconsole/vtcon1/bind echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/unbind echo simple-framebuffer.0 > /sys/bus/platform/drivers/simple-framebuffer/unbind rmmod radeon rmmod amdgpu # ./test.sh + echo 0 + echo 0 + echo efi-framebuffer.0 bash: echo: write error: No such device + echo simple-framebuffer.0 + rmmod radeon Killed + rmmod amdgpu (stuck here) dmesg output attached