#13211: Upgrade GAP to 4.5.6
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Reporter: kini | Owner:
tbd
Type: enhancement | Status:
needs_review
Priority: major | Milestone:
sage-5.5
Component: packages | Resolution:
Keywords: | Work issues:
Report Upstream: Completely fixed; Fix reported upstream | Reviewers:
Dmitrii Pasechnik
Authors: Volker Braun | Merged in:
Dependencies: #13123, #13579 | Stopgaps:
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Comment (by vbraun):
I still don't understand why you get EIO. This means something is
seriously foobared, no? When sage quits the other end of the pipe should
be closed, resulting in EPIPE.
My theory is the following: the Sage expect interface can use temporary
files to redirect stdin/out and this is where the problem lies. If you run
with `sage --nodotsage`, this temporary file is on `/tmp` (see
`SAGE_TMP_INTERFACE`). The tmpfs on sage.math has some bug that is
triggered when you put pressure on the virtual memory, when most of the
swap is locked in anonymous mmaps.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13211#comment:154>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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