Jean-Pierre Flori wrote: > > > On Monday, September 26, 2016 at 11:47:00 AM UTC+2, Jonathan Bober wrote: > > On Mon, Sep 26, 2016 at 9:44 AM, Dima Pasechnik <dim...@gmail.com > <javascript:>> wrote: > > > > On Monday, September 26, 2016 at 2:22:51 AM UTC, Jonathan Bober > wrote: > > I recompiled with gcc 6.1.0, and get the same segfault. I > did a ./sage -i gdb to get a better crash report, which is > attached. I don't know if it is useful. Also, it mentions > some gcc 5.1.0 paths, which seems odd. I don't know if that > indicates that something is broken on my end.
If in doubt, try building with '-mno-xop' in CFLAGS. AFAICT, *every* GCC version supporting Bulldozer+ is broken w.r.t. mixing AVX and XOP instructions (at higher optimization levels). (I haven't tried 6.x yet though IIRC; GMP-ECM 6.4 built with '-march=native -O3' was an example exposing this in the past, 7.x no longer does.) -leif > I am mostly guessing, but mentioning gcc 5.1.0 in the log does > sound to me as if your toolchain might be broken after update to > gcc 6.1 (perhaps it's debugging versions of libs...) > > > No, I think I was confused and used the wrong installation of sage > to produce that crash report. Maybe I typed sage instead of ./sage. > The correct crash report is attached now. > > The backtrace does not say much to me... > Maybe you could try to update openblas? our version is already outdated. > And hopefully this might have been fixed in a newer version (though I > did not find anything looking very related after a few google searches). > Just download the latest openblas tarball into upstream, edit > build/pkgs/openblas/package-version.txt to reflect the version change > and run sage --package fix-checksum openblas to update the checksum. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
