Bug 88968

Summary:	Unit mouseover in World of Warcraft (wine, D3D) freezes up the entire system
Product:	Mesa	Reporter:	rubykuby
Component:	Drivers/Gallium/radeonsi	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED FIXED	QA Contact:	Default DRI bug account <dri-devel>
Severity:	normal
Priority:	medium
Version:	git
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description rubykuby 2015-02-04 15:55:56 UTC

I'm not sure if I selected all the right bug tracker things, or whether this is a Mesa or X11 bug.

I have an AMD Radeon HD 7950, which is practically identical to the R9 280. When running World of Warcraft in wine, everything works fine until I mouseover a unit. This mouseover should trigger a glow effect around the unit, but instead freezes up the entire system, forcing me to reboot.

This bug does not occur in standard Ubuntu 14.10. It does occur in Ubuntu 14.10 with the oibaf/graphics-drivers PPA added. It also occurs in Manjaro 0.9.

Ubuntu 14.10 versions:
libgl1-mesa-glx - 10.3.0-0ubuntu3
xserver-xorg-video-ati - 1:7.4.0-2ubuntu2

Oibaf versions:
mesa - 10.5~git1502040730.6fd4a6~gd~u 
xserver-xorg-video-ati - 1:7.5.99+git1501140731.c80ea1~gd~u

Manjaro 0.9 versions:
mesa - 10.4.3-1
xf86-video-ati - 1:7.5.0-1

This bug does not occur when turning on the OpenGL mode within WoW. This bug does not occur in the Catalyst drivers.

I do not know how to gather debug information, but I'd be glad to provide them if given instructions.

Comment 1 Michel Dänzer 2015-02-05 01:52:34 UTC

So it seems like it's a regression between Mesa 10.3 and 10.4. Any chance you could bisect between those?

Comment 2 rubykuby 2015-02-05 13:32:41 UTC

I'm going to need to know how to "bisect".

Comment 3 Michel Dänzer 2015-02-09 09:03:55 UTC

A web search for "git bisect howto" should get you started.

Comment 4 rubykuby 2015-02-11 20:57:52 UTC

Nailed down the bug to commit 1f6c0b55df9f3553b18062ad2c7e2dc021d4c731:

    radeonsi: set number of userdata SGPRs of GS copy shader to 4
    
    It only needs the constant buffer with clip planes and read-write resources
    for the GS->VS ring and streamout. That's 2 pointers.
    
    Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

The commit before that commit (68d36c0bb532987db27a596408e0326f20ca0365) does not crash and burn.

Used the following configure command for each build:

./autogen.sh --prefix=/usr/local \
               --sysconfdir=/etc \
               --with-dri-driverdir=/usr/lib/xorg/modules/dri \
               --with-gallium-drivers=r300,r600,radeonsi,nouveau,svga,swrast \
               --with-dri-drivers=i915,i965,r200,radeon,nouveau,swrast \
               --with-egl-platforms=x11,drm,wayland \
               --disable-xvmc \
               --enable-llvm-shared-libs \
               --enable-egl \
               --enable-gbm \
               --enable-gallium-llvm \
               --enable-shared-glapi \
               --enable-glx \
               --enable-glx-tls \
               --enable-dri \
               --enable-osmesa \
               --enable-gles1 \
               --enable-gles2 \
               --enable-texture-float \
               --enable-xa \
               --enable-vdpau \
               --enable-omx \
               --enable-nine \
               --enable-opencl \
               --enable-opencl-icd \
               --with-clang-libdir=/usr/lib

Followed by make and make install.

Running on Arch Linux currently, with the following package versions:

xorg-server - 1.16.4-1
xf86-video-ati - 1:7.5.0-1
linux - 3.18.6-1

Comment 5 rubykuby 2015-03-11 11:06:24 UTC

This bug is no longer reproducible on my system. Two variables have changed:

I'm now running Mesa 10.4.6 (small point update) & WoW has had an update to version 6.1.

Comment 6 Marek Olšák 2015-08-24 22:20:55 UTC

(In reply to rubykuby from comment #5)
> This bug is no longer reproducible on my system. Two variables have changed:
> 
> I'm now running Mesa 10.4.6 (small point update) & WoW has had an update to
> version 6.1.

So can I close this?

Comment 7 Marek Olšák 2015-08-24 22:21:31 UTC

Closing. Please reopen if you still get the freezes.

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