[Bug 85207] agd5f drm-next-3.19-wip + Unreal Elemental sometimes = list_add corruption/hung task

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85207

--- Comment #8 from Andy Furniss <adf.lists at gmail.com> ---
(In reply to Andy Furniss from comment #7)
> (In reply to Christian König from comment #6)
> > (In reply to Andy Furniss from comment #5)
> > > I don't know about Elemental as it's far harder to trigger, but first try
> > > with valley produced -
> > > 
> > > [  156.617954] radeon 0000:01:00.0: GPU fault detected: 146 0x02e83504
> > > [  156.617960] radeon 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
> > > 0x00010F17
> > > [  156.617961] radeon 0000:01:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
> > > 0x08035004
> > > [  156.617963] VM fault (0x04, vmid 4) at page 69399, read from VGT (53)
> > 
> > Sounds like a different problem triggered by the same patchset to me.
> > 
> > But first things first, is the original issue with the list corruption
> > fixed? If yes we can start to look into this one as well.
> 
> It's OK so far, but then I need more time as I don't really know how to
> trigger it and last time I called it as OK (in another bug) it wasn't.

Still haven't crashed Elemental but have got -

[29066.333908] [drm:radeon_gem_va_update_vm] *ERROR* Couldn't update BO_VA
(-512)
[29066.335653] [drm:radeon_gem_va_update_vm] *ERROR* Couldn't update BO_VA
(-512)

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