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[Bug 1046962] radeonsi: 3D engines causing frequent GPU lockups
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Wed, 26 Jul 2017 22:10:56 +0000
  • Message-id: <bug-1046962-21960-WVR2q8MkPY@http.bugzilla.opensuse.org/>
http://bugzilla.opensuse.org/show_bug.cgi?id=1046962
http://bugzilla.opensuse.org/show_bug.cgi?id=1046962#c20

--- Comment #20 from Mircea Kitsune <sonichedgehog_hyperblast00@xxxxxxxxx> ---
I was able to use parallel SSH sessions to monitor changes in the files
suggested by Max Staudt, which I did by using the command:

watch -n 1 cat filename

The relevant files that existed and I was able to watch are:

/sys/kernel/debug/dri/0/clients
/sys/kernel/debug/dri/0/gem_names
/sys/kernel/debug/dri/0/radeon_gtt_mm
/sys/kernel/debug/dri/0/radeon_vram_mm
/sys/kernel/debug/dri/0/ttm_dma_page_pool
/sys/kernel/debug/dri/0/ttm_page_pool

I will attach the captures of each output, each showing its file <= 1 second
before the freeze. I understand those files should retain information about
VRAM, which indicates whether this could be a progressive memory leak.

Very important note: It has taken me hours to obtain those outputs, and for a
while I thought the freeze was fixed by an update altogether. For over 2 hours
I was able to run all game engines that produced this crash without getting any
freeze whatsoever, which has never happened before! However the freeze returned
after I restarted my machine, meaning it's still present. I have no idea
whether there's a switch in my system that causes it to happen only sometimes,
but hopefully those files will say something.

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