[Bug 107432] Periodic complete system lockup with Vega M and Kernel 4.18-rc6+

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107432

--- Comment #7 from Robert Strube <rstrube at gmail.com> ---
(In reply to Michel Dänzer from comment #6)
> Well, https://bugs.freedesktop.org/attachment.cgi?id=140903 definitely shows
> an amdgpu issue exacerbating the memory pressure situation — it tries to
> allocate 4M of physically contiguous memory. My patch fixes that. Can you
> confirm that the patch at least doesn't cause any additional issues of its
> own?

Hey! Good point.

I ran the custom kernel for a couple days without issue.  Would you like me to
do some more testing? I went back to vanilla 4.18-rc7 - but I'd be happy to
make my daily driver 4.18-rc7 with the patch.

My understanding is that kvmalloc is a slightly safer way of allocating memory
as compared to kmalloc - in that it doesn't necessarily need the memory to be
contiguous.  The downside is that it's not quite a performant.  Is this
correct?

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