#11844: Race condition in building MPIR/yasm
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Reporter: vbraun | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.7.2
Component: packages | Keywords:
Work_issues: | Upstream: Workaround found; Bug reported
upstream.
Reviewer: | Author:
Merged: | Dependencies:
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Changes (by vbraun):
* priority: minor => major
Comment:
This is the mpir-1.2.2.p2.spkg from sage-4.7.2.alpha2. All versions of
Yasm have the bug.
You probably didn't trip over the yasm bug because you were using a file
system that allows you to open the same file multiple times for writing.
Then you don't get the segfault, but you may get corrupted output. If you
are extremely lucky gcc might even compile the clobbered output from re2c,
and you'd just get mathematically wrong results for integer arithmetic.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11844#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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