Bug 205853
| Summary: | amdgpu kernel bug: kernel null pointer dereference | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Janpieter Sollie (janpieter.sollie) |
| Component: | Video(DRI - non Intel) | Assignee: | drivers_video-dri |
| Status: | RESOLVED DOCUMENTED | ||
| Severity: | normal | CC: | bjo |
| Priority: | P1 | ||
| Hardware: | x86-64 | ||
| OS: | Linux | ||
| Kernel Version: | 5.4.2 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
dmesg of kernel 5.4.2
lspci -v output kernel config file working .config |
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Created attachment 286279 [details]
lspci -v output
Created attachment 286281 [details]
kernel config file
the issue seems to be in the DC driver: booting the amdgpu kernel module with "dc=0" reduces the output to: ======================== [ 7.050414] amdgpu 0000:0a:00.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* IB test failed on uvd (-110). [ 7.151761] [drm:process_one_work] *ERROR* ib ring test failed (-110). ======================== Created attachment 286571 [details]
working .config
this modified .config file allows the DC driver to get things up and running; however: as the IB ring error still exists, I'll have to look further into that, but that's another bug
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Created attachment 286277 [details] dmesg of kernel 5.4.2 possible duplicate of #204181, but as they are talking about X software, and I don't even have an xorg setup (issue happens at boot, device is only present for opencl software), I decided to file a new one: AMDGPU kernel NULL pointer dereference, address: 0000000000000d71 using fiji device lspci, dmesg and .config attached.