[Bug 91518] [TAHITI] Crash caused by GPU faults while launching Unigine Heaven 4.0

[Bug 91518] [TAHITI] Crash caused by GPU faults while launching Unigine Heaven 4.0

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https://bugs.freedesktop.org/show_bug.cgi?id=91518

            Bug ID: 91518
           Summary: [TAHITI] Crash caused by GPU faults while launching
                    Unigine Heaven 4.0
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: wielkiegie@gmail.com
        QA Contact: dri-devel@lists.freedesktop.org

Hello,

While trying to test new tessellation code in radeonsi using Unigine Heaven, I
happened to stumble on this bug.

After first few frames of rendering after the loading screen ends, the system
locks itself up. The rendering is almost always broken too. Sometimes the GPU
does try to restart, but most of the time the lock-up is hard (the kernel
doesn't respond to any keyboard events) and I need to reset.

After the reset, the following messages reside in the kern.log (quite a lot of
them):

[  142.631214] radeon 0000:02:00.0: GPU fault detected: 147 0x0a0d4402
[  142.631217] radeon 0000:02:00.0:   VM_CONTEXT1_PROTECTION_FAULT_ADDR  
0x00130CD0
[  142.631218] radeon 0000:02:00.0:   VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x0D044002
[  142.631220] VM fault (0x02, vmid 6) at page 1248464, write from TC (68)

This could be related to #90266, but the faults don't happen in the background,
they almost immediately take the system down.

I am using kernel 4.1.3, mesa and libdrm from git, xorg 1.17.2, ddx 7.5.0.
The problem also did happen just before the tessellation work was done (with
the tessellation disabled in the benchmark), using mesa from ~2 weeks ago. The
recent Marek's fixes didn't help.

Relevant Heaven settings:
Quality: Ultra
Tessellation: Extreme/Disabled
Anti-Aliasing: 4x/8x
Full Screen: yes

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[Bug 91518] [TAHITI] Crash caused by GPU faults while launching Unigine Heaven 4.0

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https://bugs.freedesktop.org/show_bug.cgi?id=91518

--- Comment #1 from Gustaw Smolarczyk <wielkiegie@gmail.com> ---
Also, I am using LLVM from git.

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[Bug 91518] [TAHITI] Crash caused by GPU faults while launching Unigine Heaven 4.0

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https://bugs.freedesktop.org/show_bug.cgi?id=91518

--- Comment #2 from Marek Olšák <maraeo@gmail.com> ---
Did you install Mesa's drirc in /etc/drirc?

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[Bug 91518] [TAHITI] Crash caused by GPU faults while launching Unigine Heaven 4.0

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https://bugs.freedesktop.org/show_bug.cgi?id=91518

--- Comment #3 from Gustaw Smolarczyk <wielkiegie@gmail.com> ---
I think it happens automatically when I am using the gentoo ebuild, since the
contents of /etc/drirc match the in the mesa git repository.

But the ~/.drirc contains the old values... Let me check with the local file
deleted (or at least the heaven sections deleted).

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[Bug 91518] [TAHITI] Crash caused by GPU faults while launching Unigine Heaven 4.0

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https://bugs.freedesktop.org/show_bug.cgi?id=91518

--- Comment #4 from Gustaw Smolarczyk <wielkiegie@gmail.com> ---
Created attachment 117479
  --> https://bugs.freedesktop.org/attachment.cgi?id=117479&action=edit
dmesg with GPU lock-up

Commenting the old heaven profiles from ~/.drirc didn't help. Or maybe it did
change the behavior somewhat.

Attached is the relevant fragment of kern.log. The GPU did restart a few times
but eventually the system locked-up.

What's more, when the freeze happened the loading screen was displayed. So the
problem happened even earlier then before. It might have happened that way by
chance though.

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[Bug 91518] [TAHITI] Crash caused by GPU faults while launching Unigine Heaven 4.0

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https://bugs.freedesktop.org/show_bug.cgi?id=91518

Vladimir Usikov <grantipak@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #5 from Vladimir Usikov <grantipak@gmail.com> ---
Radeon 7950(TAHITI) llvm-git, mesa-git, kernel 4.4.1

Test pass ok, with all three levels of tessellation(Moderable, Normal,
Extrime).

Do this bug still exist?

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[Bug 91518] [TAHITI] Crash caused by GPU faults while launching Unigine Heaven 4.0

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https://bugs.freedesktop.org/show_bug.cgi?id=91518

Marek Olšák <maraeo@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEEDINFO                    |RESOLVED

--- Comment #6 from Marek Olšák <maraeo@gmail.com> ---
This must be fixed, because we've tested Heaven a lot and fixed a bunch of bugs
for VI and nonVI. please reopen if you can reproduce this.

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