[Pkg-opencl-devel] Bug#781875: beignet: silently does nothing on large arrays

[Giuseppe Bilotta]

Hello,

I've finally had time to test the latest version in experimental
(1.0.2-2) and now every kernel invocation, regardless of arguments
counts and array sizes, fails with

drm_intel_gem_bo_context_exec() failed: Invalid argument

so I might be among the ones affected by the other bug you mention (I
run on 3.16.7-ckt9-2).

I do not have the workaround from #767148 enabled, at least I don't
remember ever enabling it.

sudo cat /sys/module/i915/parameters/enable_cmd_parser

returns 1.



On Fri, Apr 10, 2015 at 2:04 PM, Rebecca N. Palmer
<rebecca_palmer at zoho.com> wrote:
> Control: tags -1 pending
>
> This is now fixed upstream and in Alioth (
> https://anonscm.debian.org/cgit/pkg-opencl/beignet.git/log/ ).
>
> However, another recently-reported bug causes beignet to totally fail
> (appears in the platform list, but can't do any computations) on 3.15 and
> later kernels on at least some Haswell processors:
> http://lists.freedesktop.org/archives/beignet/2015-April/thread.html#5463
>
> Do you still have the workaround from #767148 enabled (which also avoids
> that bug but may be a security risk, to check run:
> sudo cat /sys/module/i915/parameters/enable_cmd_parser ), or is your
> processor just not affected?
>



-- 
Giuseppe "Oblomov" Bilotta