6.0.0 crash at high precision mul?
vincent at vinc17.net
Thu Jun 5 12:21:49 UTC 2014
On 2014-06-05 14:10:29 +0200, Torbjörn Granlund wrote:
> Marc Glisse <marc.glisse at inria.fr> writes:
> Yes, better replace 65536 with something smaller in gmp-impl.h.
> That's 65536 bytes, or 8192 limbs on a 64-bit machine. It is not clear
> to me that this is a too high limit, not even for a system with tiny
> stack size defaults.
> Perhaps mpfr allocates some larger amount of stack before dropping into
MPFR also does allocations in the stack, with:
#define TMP_ALLOC(n) (MPFR_LIKELY ((n) < 16384) ? \
alloca (n) : mpfr_tmp_allocate (&tmp_marker, (n)))
This can occur recursively... Then I don't know whether this is
the cause of the crash.
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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