On Mar 9, 12:35 am, Fredrik Johansson <fredrik.johans...@gmail.com>
wrote:
> Hi,
>
> On my system, valgrind detects an invalid read in mpn_mul when the
> operands have certain sizes. For example, it happens when both operand
> lengths are 2601 limbs. I'm attaching a test .c program and valgrind
> output.
>
> I just re-ran "make check" to be sure no MPIR tests were failing.
> System is an Intel Pentium T4400, 64 bit Ubuntu, and MPIR compile
> flags included "-O2 -m64 -march=core2 -mtune=core2"
>
> Fredrik
>
> vlog.txt
> 5KViewDownload
>
> mpnbug.c
> < 1KViewDownload
Valgrind doesn't run on Windows so I cannot look into these issues.
But I have tried to use nedmalloc - a respected third party memoory
allocator - with MPIR on Windows and it too reports bad allocations
somewhere in large multiplies.
Is anyone who works on Linux going to look into this?
Brian
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