[Bug 101672] radeonsi: 3D engines causing frequent GPU lockups

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101672

--- Comment #17 from MirceaKitsune <sonichedgehog_hyperblast00 at yahoo.com> ---
My understanding is limited when it comes to drivers and core OpenGL
components, so what I say might be completely irrelevant. Looking through the
logs, I'm noticing something suspicious in ttm_dma_page_pool:

         pool      refills   pages freed    inuse available     name
           wc         5008             0     3833    16199 radeon 0000:03:00.0
       cached        22077         83375     4929        4 radeon 0000:03:00.0

The 'available' field of the 'cached' line says 4, which to me seems like a
very small value. radeon_gtt_mm and radeon_vram_mm also seem like they keep
adding more memory / pages / whatever than they are freeing, though this might
just be an impression. Others aren't raising any suspicion with me, but
hopefully someone more experienced can translate this data.

As a reminder, my video card has 2GB of memory while my system has 24 GB of RAM
and 8 GB of SWAP. Radeon R7 370 Gigabyte / Pitcairn Island / GCN 1.0 /
RadeonSI. As the amdgpu driver is not yet supported for my card, I'm still
running on the radeon driver (no fglrx).

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