[Bug target/66563] [4.9 Regression] ICE (segmentation fault) on sh4-linux-gnu

kkojima at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Sat Jun 20 12:29:00 GMT 2015


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66563

--- Comment #19 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to John Paul Adrian Glaubitz from comment #18)
> You seem to be on to something here as, in fact, mpfr had problems
> previously when built with "make check" [1]:

I see many segfaults and bus errors in [1].  Clearly this mpfr
is problematic to use in compiler.  It might show some other
problem of the compiler which was used to build mpfr, though I
have no experience for such failures.  Anyway your current mpfr
looks broken and should be replaced with the sane one.

> Assuming that mpfr would be the origin of this, would this also explain the
> segmentation faults in the recently compiled systemd package? Because
> apparently the systemd binaries crash because gcc has produced broken code
> here. Could it be possible that the compiler made some float calculation
> which gave a weird result, embedded that into systemd which in turns
> segfaults?

There is too little information to say something and there are
many possibilities, I think.



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