emerging octave (v2.1.49) terminates due to gcc internal error at gendoc.cc Reproducible: Always Steps to Reproduce: 1. emerge octave Actual Results: making gendoc.cc g++ -O3 -march=i686 -o gendoc gendoc.cc -lz gendoc.cc: In function `int main()': gendoc.cc:987: internal error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://bugs.gentoo.org/> for instructions. make[4]: *** [gendoc] Error 1 make[4]: Leaving directory `/var/tmp/portage/octave-2.1.49/work/octave-2.1.49/src' make[3]: *** [src-DOCSTRINGS] Error 2 make[3]: Leaving directory `/var/tmp/portage/octave-2.1.49/work/octave-2.1.49/doc/interpreter' make[2]: *** [interpreter] Error 2 make[2]: Leaving directory `/var/tmp/portage/octave-2.1.49/work/octave-2.1.49/doc' make[1]: *** [doc] Error 2 make[1]: Leaving directory `/var/tmp/portage/octave-2.1.49/work/octave-2.1.49' make: *** [all] Error 2 !!! ERROR: app-sci/octave-2.1.49 failed. !!! Function src_compile, Line 46, Exitcode 2 !!! emake failed Expected Results: octave installed Portage 2.0.49-r3 (default-x86-1.4, gcc-3.2.3, glibc-2.3.2-r1, 2.4.20-gentoo-r6) ================================================================= System uname: 2.4.20-gentoo-r6 i686 AMD Athlon(tm) Processor ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-O3 -march=i686" CHOST="i686-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config /usr/kde/3/share/config /usr/X11R6/lib/X11/xkb /usr/kde/3.1/share/config /usr/share/config" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" CXXFLAGS="-O3 -march=i686" DISTDIR="/usr/portage/distfiles" FEATURES="sandbox ccache" GENTOO_MIRRORS="http://gentoo.oregonstate.edu http://distro.ibiblio.org/pub/Linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 oss apm avi crypt cups encode foomaticdb gif jpeg gnome libg++ mad mikmod mmx mpeg ncurses nls pdflib png quicktime spell truetype xml2 xmms xv zlib gtkhtml alsa gdbm berkdb slang readline arts tetex bonobo svga java mysql X sdl gpm tcpd pam libwww ssl perl python esd imlib oggvorbis gtk qt kde motif opengl mozilla"
Um, internal error? Try updating the gcc and try again? gcc-3.3.1 just went ~x86, you can try this one.. Also -O3 quite often makes the code larger and slower. You might want to consider "downgrading" your C[XX]FLAGS to -O2. George
I would rather wait a litle more before upgrading gcc. For the time being I managed to emerge octave 2.1.40, which is enough for what I am doing right now. I'll try -O2 if I got some time, just for an experiment.
Then you can try remerging your current version of gcc. It might have become "slightly" compromised (or more likely some libs might develop conflicts). And yea, I cannot reproduce this problem - neither with 3.2.3 nor with 3.3.1. I guess I'll have to close this bug with RESOLVED/INVALID for now. Please reopen it if you get anything more specific or if you learn of recurring failures on some other system.. Few last minute thoughts: 1. gcc segfaulting might indicate hardware malfunction (overheating most likely, usually triggered at the point of most intense calculations). You may try emerging this version again and see if this happens at the same point, then cd to the build dir and issue manual make to see if it segfaults right away or performs a bit more compilation.. 2. I already mentioned -O3 => -O2 in C[XX]FLAGS. You can try playing with -march as well. Try setting it to athlon, as you have this processor? Or to i586 for just this compilation. George
