On Wed, Dec 13, 2017 at 09:56:32PM +0100, Matthieu Herrb wrote:
> On Mon, Nov 27, 2017 at 08:22:30PM +1100, Jonathan Gray wrote:
> > cd /usr/xenocara/lib
> > ftp https://mesa.freedesktop.org/archive/mesa-17.2.6.tar.gz
> > ftp http://jsg.id.au/mesa-update/mesa.diff.gz
> > tar zxf mesa-17.2.6.tar.gz
> > gunzip mesa.diff.gz
> > patch -p0 < mesa.diff
> > 
> > sed -i 's/mesa$/mesa-17.2.6/' Makefile
> > 
> > build xenocara as normal
> > 
> > Builds on at least amd64, i386, sparc64, armv7 and arm64.
> > 
> > I'm interested in reports from people who saw corruption on Intel
> > graphics during the brief period when Mesa 17.1.6 was in the tree.
> 
> Hi,
> 
> Works for me on my various intel and radeon based machines, including
> macppc (with r300). I wasn't seeing the corruption with 17.1.6 though.
> 
> I've also checked the it builds and that glxgears works (slowly as
> expected) on loongson.
> -- 
> Matthieu Herrb
>

Hi,

The last time the Mesa 17 update came up there was also an issue with
the newly introduced GLSL shader cache with pledge(2), which broke 3d
Accel/WebGL in chromium, at least on radeondrm(4).

Is this still an issue?

On Thu, Aug 24, 2017 at 09:14:53PM -0400, Bryan Steele wrote:
> It's the GPU Process that crashses, not chrome totally, so stuff
> doesn't feel as fast but otherwise works.. except WebGL.
> 
> With MESA_GLSL_CACHE_DISABLE
>
> Canvas: Hardware accelerated
> CheckerImaging: Disabled
> Flash: Hardware accelerated
> Flash Stage3D: Hardware accelerated
> Flash Stage3D Baseline profile: Hardware accelerated
> Compositing: Hardware accelerated
> Multiple Raster Threads: Enabled
> Native GpuMemoryBuffers: Software only. Hardware acceleration disabled
> Rasterization: Software only. Hardware acceleration disabled
> Video Decode: Hardware accelerated
> WebGL: Hardware accelerated
> WebGL2: Hardware accelerated
> 
> Without MESA_GLSL_CACHE_DISABLE
> 
> Canvas: Software only, hardware acceleration unavailable
> CheckerImaging: Disabled
> Flash: Software only, hardware acceleration unavailable
> Flash Stage3D: Software only, hardware acceleration unavailable
> Flash Stage3D Baseline profile: Software only, hardware acceleration
unavailable
> Compositing: Software only, hardware acceleration unavailable
> Multiple Raster Threads: Enabled
> Native GpuMemoryBuffers: Software only. Hardware acceleration disabled
> Rasterization: Software only, hardware acceleration unavailable
> Video Decode: Software only, hardware acceleration unavailable
> WebGL: Hardware accelerated but at reduced performance
> WebGL2: Unavailable
> 
> $ ktrace -di
>  73674 chrome   CALL  open(0x178f67579a80,0x10000<O_RDONLY|O_CLOEXEC>)
>  73674 chrome   NAMI
> "/home/brynet/.cache/mesa/de/4387ec406a27454794d3b16d24e\
>  73674 chrome   PLDG  open, "rpath", errno 1 Operation not permitted
>  98110 chrome   CALL  kill(73674,SIGKILL)
> 
> -Bryan.

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