* [Bug 97524] Invalid sampler settings cause full GPU reset
2016-08-29 4:06 [Bug 97524] Invalid sampler settings cause full GPU reset bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97524
--- Comment #1 from Nicolai Hähnle <nhaehnle@gmail.com> ---
Hi Matias, thanks for the report. I cannot reproduce this on Bonaire or
Polaris. Could you please send the dmesg of this when running your bug repro
program?
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https://bugs.freedesktop.org/show_bug.cgi?id=97524
--- Comment #2 from Matias N. Goldberg <dark_sylinc@yahoo.com.ar> ---
Created attachment 126190
--> https://bugs.freedesktop.org/attachment.cgi?id=126190&action=edit
Kern.log when it managed to reset
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^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug 97524] Invalid sampler settings cause full GPU reset
2016-08-29 4:06 [Bug 97524] Invalid sampler settings cause full GPU reset bugzilla-daemon
2016-09-02 10:03 ` bugzilla-daemon
2016-09-03 21:54 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97524
--- Comment #3 from Matias N. Goldberg <dark_sylinc@yahoo.com.ar> ---
Created attachment 126191
--> https://bugs.freedesktop.org/attachment.cgi?id=126191&action=edit
Kern.log when it failed to reset
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https://bugs.freedesktop.org/show_bug.cgi?id=97524
--- Comment #4 from Matias N. Goldberg <dark_sylinc@yahoo.com.ar> ---
Ah, you're on bleeding edge HW. Stopping showing off!
It's an AMD Radeon HD 7770 1GB. The audio is not in use but I'm including it
just in case.
Vendor and Device ID 1682:3231
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cape
Verde XT [Radeon HD 7770/8760 / R7 250X] (prog-if 00 [VGA controller])
Subsystem: XFX Pine Group Inc. Cape Verde XT [Radeon HD 7770/8760 / R7
250X]
Flags: bus master, fast devsel, latency 0, IRQ 27
Memory at e0000000 (64-bit, prefetchable) [size=256M]
Memory at f7d00000 (64-bit, non-prefetchable) [size=256K]
I/O ports at e000 [size=256]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
Capabilities: [150] Advanced Error Reporting
Capabilities: [270] #19
Kernel driver in use: radeon
Kernel modules: radeon
Vendor and Device ID 1682:aab0
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Cape
Verde/Pitcairn HDMI Audio [Radeon HD 7700/7800 Series]
Subsystem: XFX Pine Group Inc. Cape Verde/Pitcairn HDMI Audio [Radeon
HD 7700/7800 Series]
Flags: bus master, fast devsel, latency 0, IRQ 32
Memory at f7d60000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
Capabilities: [150] Advanced Error Reporting
Kernel driver in use: snd_hda_intel
I'll be attaching two logs. One of them from a few days ago where the GPU
managed to recover (if we can call that "recover" it was barely functional and
had to reset via Ctrl+Alt+Supr). Another from today I just repro again and was
totally unable to recover, screen flashed several times as if it tried to soft
reset more than once (I'm not certain that's what happened), still could do
Ctrl+Alt+Supr to reset.
I've been thinking these few days this bug MIGHT be related (causing):
https://bugs.freedesktop.org/show_bug.cgi?id=93649
If the game for just one frame randomly presents an invalid setup for one
measly small object, it would hang Radeon 7770s but it would work fine for
everybody else including these users in Windows (seriously, in my own program I
could not visually tell what was missing, it was some small object in a cubemap
render used for reflections) and nobody would notice.
If you have a suspect on where I should look (i.e. you have Mesa code that
SHOULD be catching this incorrect setup but isn't; I can analyze why it's not
catching the error) I can insert a few printfs or hook gdb. As a graphics
programmer I have my pride to keep.
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^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug 97524] Invalid sampler settings cause full GPU reset
2016-08-29 4:06 [Bug 97524] Invalid sampler settings cause full GPU reset bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97524
--- Comment #5 from Nicolai Hähnle <nhaehnle@gmail.com> ---
I've now tried your sample with Verde, and cannot reproduce it there either.
The logs you have submitted are unfortunately not very useful, because all I
see are messages about ring stalls and reset attempts. Are there any messages
_before_ that?
To be honest, I don't see what the problem could be. Running it with a debug
build (which shows all OpenGL errors) shows quite clearly that the bad state is
caught at program link time, which then leads to the bad program not being
used.
One thing that catches my eye is that your glxinfo says DRM 2.45.0, while mine
says DRM 2.47.0.
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--- Comment #6 from Matias N. Goldberg <dark_sylinc@yahoo.com.ar> ---
Of course you can't repro... nothing is ever easy, isnt it? :D
Regarding the log: Unfortunately that's it. If I go one line up, I can see a
crash from nemo, the file browser which had crashed a few minutes earlier for
something completely unrelated.
Regarding libdrm: it's hard to know you're on latest everything! I didn't know
I wasn't on latest DRM. I will compile, update and try again.
Could you tell me the error msgs you get? (from successfully catching the
error). I could Find in Files the error string to see where it's being caught
and begin investigating why it never hits on my machine.
Cheers
Matias
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^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug 97524] Invalid sampler settings cause full GPU reset
2016-08-29 4:06 [Bug 97524] Invalid sampler settings cause full GPU reset bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=97524
--- Comment #7 from Matias N. Goldberg <dark_sylinc@yahoo.com.ar> ---
I've researched yesterday and I did not know DRM 2.47 was tied to the kernel
version. I thought libdrm was what determined the version.
I would have to update to the kernel 4.8 which I can't do immediately.
In the meantime it would help a lot if I know what errors show up for you so I
can research why my machine is just firing up the draw commands.
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^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug 97524] Invalid sampler settings cause full GPU reset
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https://bugs.freedesktop.org/show_bug.cgi?id=97524
--- Comment #8 from Nicolai Hähnle <nhaehnle@gmail.com> ---
Here's the output:
GL Context creation suceeded.
Mesa: User error: GL_INVALID_OPERATION in glUseProgram(program 3 not linked)
^C0:1(1): error: syntax error, unexpected $end0:1(1): error: syntax error,
unexpected $endGL_INVALID_OPERATION in glUseProgram(program 3 not linked)Shader
Stats: SGPRS: 24 VGPRS: 16 Code Size: 64 LDS: 0 Scratch: 0 Max Waves: 10
Spilled SGPRs: 0 Spilled VGPRs: 0Shader Stats: SGPRS: 16 VGPRS: 16 Code Size:
40 LDS: 0 Scratch: 0 Max Waves: 10 Spilled SGPRs: 0 Spilled VGPRs: 0Shader
Stats: SGPRS: 18 VGPRS: 8 Code Size: 252 LDS: 0 Scratch: 0 Max Waves: 10
Spilled SGPRs: 0 Spilled VGPRs: 0Shader Stats: SGPRS: 16 VGPRS: 16 Code Size:
64 LDS: 0 Scratch: 0 Max Waves: 10 Spilled SGPRs: 0 Spilled VGPRs: 0Shader
Stats: SGPRS: 16 VGPRS: 16 Code Size: 40 LDS: 0 Scratch: 0 Max Waves: 10
Spilled SGPRs: 0 Spilled VGPRs: 0
Again, this is with a debug build of Mesa, but there should be no difference in
error checking -- only the output when an error is detected is different.
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--- Comment #9 from Matias N. Goldberg <dark_sylinc@yahoo.com.ar> ---
Oh I see what's happening.
That's my fault.
The paths to the shader files were hardcoded as absolute paths.
Look for:
readFile( "/home/matias/Projects/MesaRing0Bug/src/VertexShader_vs.glsl", data,
FILE_BUF );
and:
readFile( "/home/matias/Projects/MesaRing0Bug/src/PixelShader_ps.glsl", data,
FILE_BUF );
Change the hardcoded paths, and try again. Sorry about that.
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https://bugs.freedesktop.org/show_bug.cgi?id=97524
Nicolai Hähnle <nhaehnle@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
QA Contact|dri-devel@lists.freedesktop |mesa-dev@lists.freedesktop.
|.org |org
Component|Drivers/Gallium/radeonsi |Mesa core
Assignee|dri-devel@lists.freedesktop |mesa-dev@lists.freedesktop.
|.org |org
--- Comment #10 from Nicolai Hähnle <nhaehnle@gmail.com> ---
I can reproduce this now. It really seems like this should be fixed in Mesa
main, though: there is already code that checks for this condition when it
affects a single program stage (in _mesa_update_shader_textures_used) and when
it affects a SSO pipeline (in _mesa_sampler_uniforms_pipeline_are_valid). This
code needs to be hooked into the non-SSO case as well.
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