Looks like the issue is from #pragma omp parallel for num_threads(kNumThreads) at https://github.com/tesseract-ocr/tesseract/blob/master/lstm/fullyconnected.cpp#L140
anyone more familiar with openMP know a possible reason for a seg fault there? On Tuesday, April 10, 2018 at 7:29:31 AM UTC-5, Kalven Schraut wrote: > > I am attempting to use tesseract's API in my project and everything works > as expected on ubuntu when running the code, but I am receiving a seg fault > when I moved everything over to an alpine docker container. > > The backtrace from the segfault: > #0 0x00007ffff2c4a50a in ?? () from /usr/lib/libgomp.so.1 > #1 0x00007ffff2c45d02 in GOMP_parallel () from /usr/lib/libgomp.so.1 > #2 0x00007ffff492cfea in tesseract::FullyConnected::Forward > (this=0x5555577dbb20, debug=<optimized out>, input=..., > input_transpose=<optimized out>, > scratch=0x5555577f9fc8, output=0x55555877b6a0) at > fullyconnected.cpp:140 > #3 0x00007ffff49598ff in tesseract::Series::Forward (this=0x555557803f60, > debug=<optimized out>, input=..., input_transpose=<optimized out>, > scratch=0x5555577f9fc8, output=0x55555877b6a0) at series.cpp:123 > #4 0x00007ffff49598ff in tesseract::Series::Forward (this=0x555557803d60, > debug=<optimized out>, input=..., input_transpose=<optimized out>, > scratch=0x5555577f9fc8, output=0x7fffffffc380) at series.cpp:123 > #5 0x00007ffff493b8ce in tesseract::LSTMRecognizer::RecognizeLine > (this=this@entry=0x5555577f9c80, image_data=..., invert=invert@entry=true, > debug=debug@entry=false, re_invert=re_invert@entry=false, > upside_down=upside_down@entry=false, scale_factor=0x7fffffffc35c, > inputs=0x7fffffffc410, > outputs=0x7fffffffc380) at lstmrecognizer.cpp:256 > #6 0x00007ffff493c4d0 in tesseract::LSTMRecognizer::RecognizeLine > (this=0x5555577f9c80, image_data=..., invert=invert@entry=true, debug=false, > worst_dict_cert=worst_dict_cert@entry=-3.5714285373687744, > line_box=..., words=words@entry=0x7fffffffc600) at lstmrecognizer.cpp:190 > #7 0x00007ffff480978f in tesseract::Tesseract::LSTMRecognizeWord > (this=this@entry=0x555557782420, block=..., row=row@entry=0x55555861c2e0, > word=<optimized out>, > words=words@entry=0x7fffffffc600) at linerec.cpp:241 > #8 0x00007ffff47ef729 in tesseract::Tesseract::classify_word_pass1 > (this=0x555557782420, word_data=..., in_word=0x5555585bd4e0, > out_words=0x7fffffffc600) > at control.cpp:1373 > #9 0x00007ffff47f09a5 in tesseract::Tesseract::RetryWithLanguage > (this=0x555557782420, word_data=..., recognizer=<optimized out>, > debug=debug@entry=false, > in_word=0x5555585bd4e0, best_words=0x7fffffffc6e0) at control.cpp:898 > #10 0x00007ffff47f113b in tesseract::Tesseract::classify_word_and_language > (this=this@entry=0x555557782420, pass_n=pass_n@entry=1, > pr_it=pr_it@entry=0x7fffffffc850, > word_data=word_data@entry=0x55555863ac08) at control.cpp:1314 > #11 0x00007ffff47f463c in tesseract::Tesseract::RecogAllWordsPassN > (this=this@entry=0x555557782420, pass_n=pass_n@entry=1, > monitor=monitor@entry=0x0, > pr_it=pr_it@entry=0x7fffffffc850, words=words@entry=0x7fffffffc830) at > control.cpp:265 > #12 0x00007ffff47f612d in tesseract::Tesseract::recog_all_words > (this=0x555557782420, page_res=0x5555585d6160, monitor=monitor@entry=0x0, > target_word_box=target_word_box@entry=0x0, > word_config=word_config@entry=0x0, dopasses=dopasses@entry=0) at > control.cpp:352 > > I first tried installing the tesseract-git package in alpine where I > noticed the issue so I just finished compiling the master branch of > tesseract-ocr and I am still receiving the seg fault. > > Also my compiled version of tesseract runs fine through the CLI. > > I am lost as to what else could be the problem and would appreciate any > help/direction on how to solve this issue. > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/bc2f9ce7-d0db-457d-be0d-98777fe47284%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
