kicad-developers team mailing list archive

[Wayne Stambaugh <stambaughw@xxxxxxxxx>]

On 2/18/2015 11:11 AM, LordBlick wrote:
> In response to a message written on 18.02.2015, 16:43, from Mark Roszko:
>> When the segment fault causes gdb to stop (beofre you typed continue)
>> Can you use the command "backtrace"? That will print more useful
>> information on the path it took to crash.
> 
> (gdb) backtrace
> #0  0x00007ffff61006c8 in ?? () from /lib64/libgcc_s.so.1
> #1  0x00007ffff6101738 in _Unwind_Backtrace () from /lib64/libgcc_s.so.1
> #2  0x00007ffff5c24bd6 in backtrace () from /lib64/libc.so.6
> #3  0x00007ffff5b4cb01 in ?? () from /lib64/libc.so.6
> #4  0x00007ffff5ba179e in ?? () from /lib64/libc.so.6
> #5  0x00007ffff5c28277 in __fortify_fail () from /lib64/libc.so.6
> #6  0x00007ffff5c28240 in __stack_chk_fail () from /lib64/libc.so.6
> #7  0x00007fffd914e200 in VRML2_MODEL_PARSER::Load (this=0x37c2370,
> aFilename=..., aVrmlunits_to_3Dunits=<optimized out>)
>     at
> /usr/src/debug/kicad-sources-BZR.5430-main/3d-viewer/vrml_v2_modelparser.cpp:134

Perhaps this is a clue.  Why would gcc optimize out a valid code path?
Try rebuilding with gcc optimizations disabled.

> 
> #8  0x312d2c382c392c30 in ?? ()
> [Many of unresolved addresses excised…]
> #373 0x0000000000000000 in ?? ()
> 
> build prompt & flags:
> cd ~/rpm/BUILD/kicad-sources-BZR.5430-main/build/3d-viewer &&
> /usr/bin/x86_64-pld-linux-g++   -DHAVE_STDINT_H -DKICAD_KEEPCASE
> -DKICAD_SCRIPTING -DKICAD_SCRIPTING_MODULES -DKICAD_SCRIPTING_WXPYTHON
> -DPCBNEW -DUSE_OPENMP -DWXUSINGDLL -DWX_COMPATIBILITY
> -D_FILE_OFFSET_BITS=64 -D__WXGTK__ -DwxDEBUG_LEVEL=0 -Wall  -fopenmp
> -fPIC -Wno-unused-local-typedefs -Wno-strict-aliasing -pthread -O2
> -fwrapv -pipe -Wformat -Werror=format-security -gdwarf-4
> -fno-debug-types-section -fvar-tracking-assignments -g2
> -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector --param=ssp-buffer-size=4
> -fPIC -march=x86-64 -gdwarf-4 -fno-debug-types-section
> -fvar-tracking-assignments -g2  -DNDEBUG -DQT_NO_DEBUG
> -I~/rpm/BUILD/kicad-sources-BZR.5430-main/include
> -I~/rpm/BUILD/kicad-sources-BZR.5430-main/3d-viewer/. -isystem
> /usr/lib64/wx/include/gtk2-unicode-3.0 -isystem /usr/include/wx-3.0
> -I~/rpm/BUILD/kicad-sources-BZR.5430-main/3d-viewer/textures
> -I~/rpm/BUILD/kicad-sources-BZR.5430-main/3d-viewer/../pcbnew
> -I~/rpm/BUILD/kicad-sources-BZR.5430-main/3d-viewer/../polygon
> -I~/rpm/BUILD/kicad-sources-BZR.5430-main/build -I/usr/include/python2.7
> -I~/rpm/BUILD/kicad-sources-BZR.5430-main/scripting    -o
> CMakeFiles/3d-viewer.dir/vrml_v2_modelparser.cpp.o -c
> ~/rpm/BUILD/kicad-sources-BZR.5430-main/3d-viewer/vrml_v2_modelparser.cpp
>