6.0.0 crash at high precision mul?

Vincent Lefevre vincent at vinc17.net
Thu Jun 5 12:07:39 UTC 2014

On 2014-06-05 12:43:33 +0200, Viktor Kletzhändler wrote:
> Thanks for the reply. There is a known problem with mpfr and
> thread-safety on this platform (my compiler does not support this
> sort of TLS). Sorry I forgot about that.
> However, I rebuilt gmp 6.0.0 with --enable-alloca=malloc-reentrant
> --disable-fft and now it _seems_ to work. The sin() test passes up
> to 5,000,000 bits.

If TLS is not supported, then there is no guarantee that the result
is correct (of course, it depends on the execution). But that's the
MPFR side...

Vincent Lefèvre <vincent at vinc17.net> - Web: <https://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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