Hi,
i was using valgrind / callgrind to analyse the performance of the functions
in intel H264 decoder. I was using valgrind / callgrind for this purpose. when
i use valgrind and run the h264 decoder the process terminating with default
action of signal 4 (SIGILL)
==16008== Illegal opcode at address 0x9F4F04A
==16008== at 0x9F4F04A: ??? (in
/home/amehrotra/views/amehrotra_brody_DCA-ENG-2.1_NSNTweaks_11_2/dca/build/inst/gstreamer/lib/gstreamer-0.10/libdcadec_h264.so)
==16008== by 0x9E7944E: y8_ippiFilterDeblockingChroma_VerEdge_H264_8u_C1IR
(in
/home/amehrotra/views/amehrotra_brody_DCA-ENG-2.1_NSNTweaks_11_2/dca/build/inst/gstreamer/lib/gstreamer-0.10/libdcadec_h264.so)
Attaching the full trace for reference. Although the problem looks very
specific to my intel ipp libraries Any help would be appreciated :
regards
Abhishek
.................................................................................................................................................................
Running gst-launch under Valgrind/callgrind!
==16008== Callgrind, a call-graph generating cache profiler
==16008== Copyright (C) 2002-2010, and GNU GPL'd, by Josef Weidendorfer et al.
==16008== Using Valgrind-3.6.0 and LibVEX; rerun with -h for copyright info
==16008== Command: ./inst/gstreamer/bin/gst-launch-0.10 --gst-debug=*:0 filesrc
location=/home/amehrotra/2_22712.ts ! mpegtsdemux ! dcadec_h264 iNumThreads=1 !
fakesink
==16008==
==16008== For interactive control, run 'callgrind_control -h'.
(gst-launch-0.10:16009): GStreamer-WARNING **: Failed to load plugin
'/home/amehrotra/views/amehrotra_brody_DCA-ENG-2.1_NSNTweaks_11_2/dca/../dca/build/inst/gstreamer/lib//libintlc.so':
/home/amehrotra/views/amehrotra_brody_DCA-ENG-2.1_NSNTweaks_11_2/dca/../dca/build/inst/gstreamer/lib//libintlc.so:
file too short
(gst-launch-0.10:16009): GStreamer-WARNING **: Failed to load plugin
'/home/amehrotra/views/amehrotra_brody_DCA-ENG-2.1_NSNTweaks_11_2/dca/../dca/build/inst/gstreamer/lib//libsvml.so':
/home/amehrotra/views/amehrotra_brody_DCA-ENG-2.1_NSNTweaks_11_2/dca/../dca/build/inst/gstreamer/lib//libsvml.so:
undefined symbol: __intel_cpu_indicator
==16009==
==16009== Events : Ir
==16009== Collected : 158904319
==16009==
==16009== I refs: 158,904,319
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
vex amd64->IR: unhandled instruction bytes: 0x49 0xF 0xFC 0x6B 0x10 0xF
==16008== valgrind: Unrecognised instruction at address 0x9f4f04a.
==16008== Your program just tried to execute an instruction that Valgrind
==16008== did not recognise. There are two possible reasons for this.
==16008== 1. Your program has a bug and erroneously jumped to a non-code
==16008== location. If you are running Memcheck and you just saw a
==16008== warning about a bad jump, it's probably your program's fault.
==16008== 2. The instruction is legitimate but Valgrind doesn't handle it,
==16008== i.e. it's Valgrind's fault. If you think this is the case or
==16008== you are not sure, please let us know and we'll try to fix it.
==16008== Either way, Valgrind will now raise a SIGILL signal which will
==16008== probably kill your program.
==16008==
==16008== Process terminating with default action of signal 4 (SIGILL)
==16008== Illegal opcode at address 0x9F4F04A
==16008== at 0x9F4F04A: ??? (in
/home/amehrotra/views/amehrotra_brody_DCA-ENG-2.1_NSNTweaks_11_2/dca/build/inst/gstreamer/lib/gstreamer-0.10/libdcadec_h264.so)
==16008== by 0x9E7944E: y8_ippiFilterDeblockingChroma_VerEdge_H264_8u_C1IR
(in
/home/amehrotra/views/amehrotra_brody_DCA-ENG-2.1_NSNTweaks_11_2/dca/build/inst/gstreamer/lib/gstreamer-0.10/libdcadec_h264.so)
==16008== by 0x9CDE5D7: UMC::H264SegmentDecoder::DeblockChroma420(unsigned
int, UMC::DeblockingParameters*) (umc_h264_segment_decoder_deblocking.cpp:446)
==16008== by 0x9CDFAA1:
UMC::H264SegmentDecoder::DeblockMacroblockISlice(int)
(umc_h264_segment_decoder_deblocking.cpp:186)
==16008== by 0x9CDFDA4: UMC::H264SegmentDecoder::DeblockSegment(int, int)
(umc_h264_segment_decoder_deblocking.cpp:121)
==16008== by 0x9C2D8D5: UMC::H264SegmentDecoder::DeblockSlice(int, int&)
(umc_h264_segment_decoder.cpp:81)
==16008== by 0x9C1D529:
UMC::H264SegmentDecoderMultiThreaded::ProcessSegment()
(umc_h264_segment_decoder_mt.cpp:210)
==16008== by 0x9C00F45: UMC::TaskSupplier::RunDecoding(UMC::MediaData*,
UMC::MediaData*, bool) (umc_h264_task_supplier.cpp:3175)
==16008== by 0x9C02669: UMC::TaskSupplier::AddSource(UMC::MediaData*&,
UMC::MediaData*) (umc_h264_task_supplier.cpp:2334)
==16008== by 0x9BFB074: UMC::H264VideoDecoder::ParseFrame(UMC::MediaData*,
UMC::MediaData*) (umc_h264_dec_decode_pic.cpp:268)
==16008== by 0x9BFB16B: UMC::H264VideoDecoder::GetFrame(UMC::MediaData*,
UMC::MediaData*) (umc_h264_dec_decode_pic.cpp:216)
==16008== by 0x9BF9428: dcah264_dec_chain (in
/home/amehrotra/views/amehrotra_brody_DCA-ENG-2.1_NSNTweaks_11_2/dca/build/inst/gstreamer/lib/gstreamer-0.10/libdcadec_h264.so)
==16008==
==16008== Events : Ir
==16008== Collected : 257134093
==16008==
==16008== I refs: 257,134,093
./runGSTCallGrind.sh: line 14: 16008 Killed valgrind
--tool=callgrind --separate-threads=no --compress-strings=no
--callgrind-out-file=gst_callgrind_eai_false_%p.out
./inst/gstreamer/bin/gst-launch-0.10 --gst-debug=*:0 filesrc
location=/home/amehrotra/2_22712.ts ! mpegtsdemux ! dcadec_h264 iNumThreads=1 !
fakesink
-rwxr--r-- 1 amehrotra clearusr 1408588 Apr 3 23:16
gst_callgrind_eai_false_25680.out
-rwxr--r-- 1 amehrotra clearusr 322598 Apr 3 23:16
gst_callgrind_eai_false_25677.out
-rwxr--r-- 1 amehrotra clearusr 3321857 Apr 3 23:18
gst_callgrind_eai_false_25749.out
-rwxr--r-- 1 amehrotra clearusr 714650 Apr 3 23:18
gst_callgrind_eai_false_25748.out
-rwxr--r-- 1 amehrotra clearusr 489636 Apr 3 23:18
gst_callgrind_eai_false_25755.out
-rwxr--r-- 1 amehrotra clearusr 1515272 Apr 4 00:07
gst_callgrind_eai_false_25754.out
-rw------- 1 amehrotra clearusr 439716 Jun 19 21:14
gst_callgrind_eai_false_15990.out
-rw------- 1 amehrotra clearusr 889884 Jun 19 21:14
gst_callgrind_eai_false_15988.out
-rw------- 1 amehrotra clearusr 438328 Jun 19 21:16
gst_callgrind_eai_false_16009.out
-rw------- 1 amehrotra clearusr 1553565 Jun 19 21:16
gst_callgrind_eai_false_16008.out
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