Bug found in nightbuilds
tg at gmplib.org
Sat Feb 15 10:29:16 UTC 2014
We currently have many spurious failures flagged in red at
<https://gmplib.org/devel/tm-date.html>, mainly due to hardware errors
with the system `biko'.
But the `hark' failure looks real:
hark$ cd /var/tmp/gmp-obj/hark-stat-64
hark$ GMP_CHECK_RANDOMIZE=3526906869 tests/mpn/t-div
/home/tege/prec/gmp-snap/tests/mpn/t-div.c:486: GNU MP assertion failed: qp[nn-1] == qran1
This is an emulated machine, I can reproduce this also on real hardware.
I suspect this is a new bug, and that the error is in the test code. It
seems to happen for many seeds, around one in 25, for s390. If the bug
were old it'd had happened before.
Please let this list know if you want to work on this bug. The hark
system is available to those with account at gmplib.org.
Please encrypt, key id 0xC8601622
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