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

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 101672] radeonsi: 3D engines causing frequent GPU lockups
Date: Wed, 26 Jul 2017 22:10:57 +0000	[thread overview]
Message-ID: <bug-101672-502-RtRLgKJOhm@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-101672-502@http.bugs.freedesktop.org/>

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

--- Comment #10 from MirceaKitsune <sonichedgehog_hyperblast00@yahoo.com> ---
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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