On 09/10/2018 02:19 PM, Gerald Pfeifer wrote: > On Mon, 10 Sep 2018, Martin Liška wrote: >> I can reproduce that locally in a KVM machine running FreeBSD test >> 10.4-RELEASE. I used gcc version 6.4.0 (FreeBSD Ports Collection) to >> build stage1 compiler and I can see Segfaults happening. > > Great, thanks for helping look into this, Martin! > >> Issue is that neither valgrind nor gdb work on the system. >> Valgrind has 2 PRs reported: >> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224878 >> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=228973 >> >> For the gdb I can't see any lines associated: > > Which gdb are you using? (`which gdb` and/or `gdb --version`?) > > If, as I assume, it is the old one in the system (GDB 6.1.1) it > may be worth a try installing the one from the ports/packages. > Something like `pkg add gdb`, which should bring in GDB 8.1.1.
Works for me! One needed to add --wrapper gdb81,--args. So now I see a nice back-trace. > >> Would be very handy to have at least one of these tools working. >> Gerald can you please help us with that? > > I believe the GDB route is the more promising one (also having looked > at the two PRs you found re valgrind on FreeBSD/i386). Quesiton is, > is it more of a GDB issue, or perhaps debugging information missing? > > Let me know what you find, I may be able to ask others, closer to the > FreeBSD toolchain for help. Sure, I'll debug that more now. Martin > > Gerald >
