Hi Joe, On 26/04/2020 15.13, Joe D wrote:
> Regarding gdb , is there any additional steps to load the symbols or the > instruction on https://wiki.gnuradio.org/index.php/TutorialsDebugging will > suffice I'm not familiar with this tutorial, for gnuradio's symbols it should be enough to rebuild in "RelWithDebInfo" or "Debug" mode. rm CMakeCache.txt cmake -D CMAKE_BUILD_TYPE=RelWithDebInfo .. make clean make For debug symobols of external libraries you need to install their dbg or dbgsym packages: https://wiki.ubuntu.com/DebuggingProgramCrash https://wiki.debian.org/HowToGetABacktrace > > ==22123== Process terminating with default action of signal 11 (SIGSEGV): > dumping core > ==22123== Bad permissions for mapped region at address 0x104C66C0 > ==22123== at 0x13B1D604: ref (qlist.h:121) > ==22123== by 0x13B1D604: QList (qlist.h:121) > ==22123== by 0x13B1D604: QPrinterInfoPrivate (qprinterinfo_p.h:71) > ==22123== by 0x13B1D604: __static_initialization_and_destruction_0 > (qprinterinfo.cpp:35) > ==22123== by 0x13B1D604: _GLOBAL__sub_I_qprinterinfo.cpp > (qprinterinfo.cpp:163) > ==22123== by 0x4010732: call_init (dl-init.c:72) > ==22123== by 0x4010732: _dl_init (dl-init.c:119) > ==22123== by 0x40151FE: dl_open_worker (dl-open.c:522) > ==22123== by 0x4FA32DE: _dl_catch_exception (dl-error-skeleton.c:196) > ==22123== by 0x40147C9: _dl_open (dl-open.c:605) > ==22123== by 0x544CF95: dlopen_doit (dlopen.c:66) > ==22123== by 0x4FA32DE: _dl_catch_exception (dl-error-skeleton.c:196) > ==22123== by 0x4FA336E: _dl_catch_error (dl-error-skeleton.c:215) > ==22123== by 0x544D734: _dlerror_run (dlerror.c:162) > ==22123== by 0x544D050: dlopen@@GLIBC_2.2.5 (dlopen.c:87) > ==22123== by 0x5F7DBC: _PyImport_FindSharedFuncptr (in > /usr/bin/python3.6) > ==22123== by 0x5FB027: _PyImport_LoadDynamicModuleWithSpec (in > /usr/bin/python3.6) This looks like https://github.com/gnuradio/gnuradio/issues/3215 and https://github.com/gnuradio/gnuradio/issues/2895 If you have libqt4-dev installed on your system and you don't need it for something else you may try to uninstall it. Regards, Vasil