Linux 5.5 / 5.6 amdgpu Kernel crash (possible fix)

It seems that a lot of GPU problems revolve around specific versions of drivers. Though AMD has their own support structure, you can often learn from information reported by others who fold.

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Apache14
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Joined: Tue Mar 24, 2020 5:27 pm

Linux 5.5 / 5.6 amdgpu Kernel crash (possible fix)

Post by Apache14 »

Hello All,

I was seeing kernel crashes while running folding @ home , after some investigation I have submitted a kernel patch that should fix the issue. The issue was (seemingly) within the kernel drivers.

Both 5.5.x and 5.6rc kernels are affected for me

Kernel Error :

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[drm:amdgpu_ttm_backend_bind [amdgpu]] *ERROR* failed to pin userptr
Patch :

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lists.freedesktop.org/archives/dri-devel/2020-March/260116.html
Bugzilla thread :

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bugzilla.kernel.org/show_bug.cgi?id=206895

If anyone with issues can test that would be amazing.

Thanks in advance
Joe_H
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Posts: 7870
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MacBook Pro 2.9 i7 8 GB smp2
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Re: Linux 5.5 / 5.6 amdgpu Kernel crash (possible fix)

Post by Joe_H »

Thank you for posting this.
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iMac 2.8 i7 12 GB smp8, Mac Pro 2.8 quad 12 GB smp6
MacBook Pro 2.9 i7 8 GB smp3
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