Segmentation fault (core dumped) while running tesseract

[cricket1]

• I followed instructions to compile tesseract from https://github.com/tesseract-ocr/tesseract/wiki/Compiling#Compilation

• I try running tesseract I get Segmentation fault (core dumped)

• gdb logs
  (gdb) run
  Starting program: /usr/local/bin/tesseract
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
STRING::string (this=this@entry=0x7ffff7dc9a78 <debug_file+24>) at strngs.cpp:203
203 if (header->used_ == 0)
(gdb) bt
#0 STRING::string (this=this@entry=0x7ffff7dc9a78 <debug_file+24>) at strngs.cpp:203
#1 0x00007ffff7873e41 in string (this=0x7ffff7dc9a60 <debug_file>) at params.h:203
#2 tprintf_internal (format=format@entry=0x7ffff789ad32 "Found AVX\n") at tprintf.cpp:60
#3 0x00007ffff77f2661 in SIMDDetect::SIMDDetect (this=) at simddetect.cpp:63
#4 0x00007ffff7dea10a in call_init (l=, argc=argc@entry=1,
argv=argv@entry=0x7fffffffdb18, env=env@entry=0x7fffffffdb28) at dl-init.c:78
#5 0x00007ffff7dea1f3 in call_init (env=, argv=, argc=,
l=) at dl-init.c:36
#6 _dl_init (main_map=0x7ffff7ffe1c8, argc=1, argv=0x7fffffffdb18, env=0x7fffffffdb28) at dl-init.c:126
#7 0x00007ffff7ddb30a in _dl_start_user () from /lib64/ld-linux-x86-64.so.2
#8 0x0000000000000001 in ?? ()
#9 0x00007fffffffdecb in ?? ()
#10 0x0000000000000000 in ?? ()

• Any clue why this is happening ?

[stweil]

How did you run Tesseract (which command line options, which image)?

[stweil]

I can reproduce the problem. It only happens when Tesseract is built with a shared library (libtesseract.so). The crash occurs because the constructor of the global variable debug_file was not called at the time when SIMDDetect::SIMDDetect is executed. For the moment, removing the tprintf statements in arch/simddetect.cpp helps.

[stweil]

Fixed with pull request #625.

[cricket1]

No issues seen now

[Shreeshrii]

Messages only shown now when asking for version and not for each image. Thanks!

 tesseract -v
tesseract 4.00.00alpha-238-ge6ccfb2
 leptonica-1.74
  libjpeg 8d (libjpeg-turbo 1.3.0) : libpng 1.2.50 : libtiff 4.0.3 : zlib 1.2.8

 Found AVX
 Found SSE

tesseract san001.jpg san001.tst -l san
Tesseract Open Source OCR Engine v4.00.00alpha-238-ge6ccfb2 with Leptonica