[Bug 93460] [amdgpu] Ooops during shutdown - amdgpu_vm_grab_id

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93460

--- Comment #6 from david1.zhou at amd.com <david1.zhou at amd.com> ---
(In reply to Christian König from comment #5)
> (In reply to Mike Lothian from comment #4)
> > When this happens my machine just freezes, the only way to continue is to
> > press and hold the power button but that doesn't cleanly unmount the disks
> 
> Yeah, that is clearly a bug when the driver unloads.
> 
> Probably rather hard to reproduce, we should add a test case which loads and
> unloads the driver multiple times while there is load.

Maybe we shall avoid to use fence for vmid, instead using LRU list.

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