Thanks Marcus and Vasil, you were spot on regarding Qt4 I still had residue of Qt4 packages, once these purged and GNURadio rebuilt , no more crashes with segmentation fault
Cheers Joe On Sun, Apr 26, 2020 at 10:56 PM Vasil Velichkov <vvvelich...@gmail.com> wrote: > 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 >
