[Beignet] opencv_test_imgproc crashs when test OCL_Imgproc/HoughLines.RealImage/0

[yan.wang at linux.intel.com]

Done.

> Sure. I will try again and file it.
>
>> I just tried on my IVB machine, and it could be reproduced easily, just
>> need
>> to unset the environment variable.
>> And this is a platform independent issue. The backend is just a
>> compiler.
>> The compiler could complain warnings or
>> errors but should never crash. If you met a crash in gcc or clang
>> internal,
>> no matter which source code it was compiling,
>> it's definitely a compiler bug.
>>
>> If possible, please submit this bug to fd.o. Thanks for reporting this.
>>
>>> -----Original Message-----
>>> From: Beignet [mailto:beignet-bounces at lists.freedesktop.org] On Behalf
>>> Of
>>> yan.wang at linux.intel.com
>>> Sent: Thursday, October 23, 2014 5:05 PM
>>> To: Zhigang Gong
>>> Cc: yan.wang at linux.intel.com; beignet at lists.freedesktop.org
>>> Subject: Re: [Beignet] opencv_test_imgproc crashs when test
>>> OCL_Imgproc/HoughLines.RealImage/0
>>>
>>> I am not sure whether it is platform issue. So far I have only Baytail
>>> T
>> platform
>>> no others. The assertion will not be hit now. Still need me submit bug?
>>> I
>> could
>>> do it.
>>>
>>> It may be the bug of OpenCL implementation of opecv hough lines for
>>> fail
>> case.
>>> Need more investigation.
>>>
>>> > Yan,
>>> >
>>> > No matter you set or not set the test data. It should never crash
>>> > beignet in such an assertion. That's the point. Anyway, we will look
>> into it.
>>> >
>>> > On Thu, Oct 23, 2014 at 01:40:28AM -0700, yan.wang at linux.intel.com
>>> wrote:
>>> >> My previous mail may misunderstand you. Sorry.
>>> >> After I cloned opencv_extra git and set path rightly, this assertion
>>> >> will not be hit But 1 case of 8 will failed because dst size should
>>> >> be 1x60 and is 1x61 in fact. I am trying to debug it. The other 7
>>> >> cases passed.
>>> >>
>>> >>
>>> >> > Yan,
>>> >> >
>>> >> > It's still an valid bug. Beignet should never hit such an
>>> assertion
>>> >> > if everything works well. Could you open a bug on fd.o for beignet
>>> >> module?
>>> >> > You may need to specify the git-hash of the beignet and the opencv
>>> >> > you
>>> >> are
>>> >> > using. And you need to specify that don't set the opencv test data
>>> >> > environment variable to reproduce it.
>>> >> >
>>> >> > Thanks,
>>> >> > Zhigang Gong.
>>> >> >
>>> >> > On Thu, Oct 23, 2014 at 01:16:13AM -0700, yan.wang at linux.intel.com
>>> >> wrote:
>>> >> >> After cloned related test data, it will not crashed.
>>> >> >> Sorry.
>>> >> >>
>>> >> >> > Hi, All,
>>> >> >> >   This case will crash as the following:
>>> >> >> >   [ RUN      ] OCL_Imgproc/HoughLines.RealImage/0
>>> >> >> > ASSERTION FAILED: defIt != bbIt->second->end() && defIt->second
>>> >> >> > !=
>>> >> >> NULL
>>> >> >> >   at file /home/yanwang/beignet/backend/src/ir/value.cpp,
>>> >> >> > function gbe::ir::LiveOutSet::RegDefSet&
>>> >> gbe::ir::LiveOutSet::getDefSet(const
>>> >> >> > gbe::ir::BasicBlock*, gbe::ir::Register), line 91
>>> >> >> >   Thanks.
>>> >> >> >
>>> >> >> > Yan Wang
>>> >> >> > _______________________________________________
>>> >> >> > Beignet mailing list
>>> >> >> > Beignet at lists.freedesktop.org
>>> >> >> > http://lists.freedesktop.org/mailman/listinfo/beignet
>>> >> >> >
>>> >> >>
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