[Beignet] [drm] stuck on render ring

[Ernst Lenzer]

Thanks for your reply. The screen freezes for about 5 seconds, then the errors show up. I tried running "echo -n 0 > /sys/module/i915/parameters/enable_hangcheck" before executing "pyrit selfcheck", but that freezes the screen until reboot (I waited about 10 minutes). So it looks like it must be a different issue.


On Sunday, 19 October 2014, 12:55, Yichao Yu <yyc1992 at gmail.com> wrote:
 


On Sat, Oct 18, 2014 at 11:33 AM, Ernst Lenzer <ernstlenzer at yahoo.com> wrote:
> I'm trying to use pyrit with OpenCL extension with an Intel 4600 using
> Beignet. I'm running Debian Jessie, Kernel 3.16, pyrit 0.8.1-1 from the
> official Debian repositories and ran "echo 0 >
> /sys/module/i915/parameters/enable_cmd_parser" to avoid the known bug with
> kernel 3.16. "pyrit selftest" produces the following error in the terminal:
>
>>>>>>>>>>>>>>>>>
> Exception in thread OpenCL-Device 'Intel(R) HD Graphics Haswell M':
> Traceback (most recent call last):
>   File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
>     self.run()
>   File "/usr/lib/python2.7/dist-packages/cpyrit/cpyrit.py", line 113, in run
>     self._testComputeFunction(101)
>   File "/usr/lib/python2.7/dist-packages/cpyrit/cpyrit.py", line 103, in
> _testComputeFunction
>     raise ValueError("Test-vector does not result in correct PMK.")
> ValueError: Test-vector does not result in correct PMK.
>
> Exception in thread CPU-Core (SSE2):
> Traceback (most recent call last):
>   File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
>     self.run()
>   File "/usr/lib/python2.7/dist-packages/cpyrit/cpyrit.py", line 110, in run
>     essid, pwlist = self.queue._gather(self.buffersize, timeout=0.5)
>   File "/usr/lib/python2.7/dist-packages/cpyrit/cpyrit.py", line 632, in
> _gather
>     self._check_cores()
>   File "/usr/lib/python2.7/dist-packages/cpyrit/cpyrit.py", line 490, in
> _check_cores
>     raise SystemError("The core '%s' has died unexpectedly" % core)
> SystemError: The core 'OpenCL-Device 'Intel(R) HD Graphics Haswell M'' has
> died unexpectedly
>>>>>>>>>>>>>>>>>
>
> The following shows up in dmesg:
>
>>>>>>>>>>>>>>>>>
> [drm] stuck on render ring
> [drm] GPU HANG: ecode 0:0xfdddfffe, in pyrit [4016], reason: Ring hung,
> action: reset
>>>>>>>>>>>>>>>>>

How long does the kernel run? The output is slightly different but
maybe it is related to the GPU hang check issue[1].

[1] http://www.freedesktop.org/wiki/Software/Beignet/#knownissues


>
> Without Beignet pyrit works fine.
>
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