https://bugs.kde.org/show_bug.cgi?id=391251
--- Comment #9 from NSLW <lukasz.wojnilow...@gmail.com> --- (In reply to José Pekkarinen from comment #8) > $ gcc -v > Using built-in specs. > COLLECT_GCC=gcc > COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/6.4.0/lto-wrapper > Target: x86_64-pc-linux-gnu > Configured with: > /var/tmp/portage/sys-devel/gcc-6.4.0-r1/work/gcc-6.4.0/configure > --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr > --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/6.4.0 > --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/6.4.0/include > --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/6.4.0 > --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/6.4.0/man > --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/6.4.0/info > --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/6.4.0/include/g++-v6 > --with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/6.4.0/python > --enable-languages=c,c++,fortran --enable-obsolete --enable-secureplt > --disable-werror --with-system-zlib --enable-nls --without-included-gettext > --enable-checking=release --with-bugurl=https://bugs.gentoo.org/ > --with-pkgversion='Gentoo 6.4.0-r1 p1.3' --disable-esp > --enable-libstdcxx-time --enable-shared --enable-threads=posix > --enable-__cxa_atexit --enable-clocale=gnu --enable-multilib > --with-multilib-list=m32,m64 --disable-altivec --disable-fixed-point > --enable-targets=all --disable-libgcj --enable-libgomp --disable-libmudflap > --disable-libssp --disable-libcilkrts --disable-libmpx > --enable-vtable-verify --enable-libvtv --enable-lto --without-isl > --enable-libsanitizer --enable-default-pie --enable-default-ssp > Thread model: posix > gcc version 6.4.0 (Gentoo 6.4.0-r1 p1.3) > > $ grep CFLAGS /etc/portage/make.conf > CFLAGS="-O2 -march=skylake -mtune=skylake -fomit-frame-pointer -pipe" > CXXFLAGS="${CFLAGS}" > > I assume the ebuild is building for release, but I cannot tell, ebuild > doesn't > light anything about it. I don't know anything about ebuild, but I believe your builds are heavily optimized by the use of "-mtune=skylake". I assume, it's the cause of your issues. For the start, could you try to set CFLAGS and CXXFLAGS to "-Og -g" and see if you still can reproduce the crash? -- You are receiving this mail because: You are the assignee for the bug.