On Tue, Jan 08, 2013 at 12:21:12AM +0100, Dimitry Andric wrote: > On 2013-01-06 17:03, Stefan Farfeleder wrote: > > On Sun, Jan 06, 2013 at 03:59:59PM +0100, Dimitry Andric wrote: > ... > > The bug also affects ports software, e.g., I also experienced strange > > rtorrent segfaults that are now gone. > > Can you please try the attached patch, which is a very horrid, atrocious > hack, and will only work for amd64. Then rebuild libgcc with clang, and > please try if this fixes at least some of the crashes... > > This is at least the direction I'm looking at. It seems that in some > cases with __builtin_eh_return(), llvm does not see that registers can > be clobbered, and it doesn't save and restore them. > > After a lot of splitting up of unwind-dw2.c, I arrived at _Unwind_Resume > which when compiled by clang caused the crashes, but when compiled by > gcc ran OK.
Hi Dimitry, your patch seems to work just fine. No crashes whatsoever so far. Thank you. Stefan _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
