#13211: Upgrade GAP to 4.5.6
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Reporter: kini | Owner:
tbd
Type: enhancement | Status:
needs_work
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 jdemeyer):
Replying to [comment:166 vbraun]:
> You'd still get a EPIPE if the process wasn't orphaned.
I doubt that pseudo-terminals can cause an EPIPE (at least in Linux).
Even if they would, you should also get a SIGPIPE signal, killing the
process.
> Also, the problem is that GAP is **not** segfaulting in some
circumstances when it is orphaned.
I would not say that this is the problem. There is a bug in GAP which may
or may not lead to a segfault. Relying that it will cause a segfault is
silly.
> The underlying problem is that the expect interfaces don't always clean
up processes before quitting Sage, hence leading to orphaned processes to
start with. Only after the process is orphaned you get EIO's.
True. So either we fix GAP or we fix the Sage interface, and preferably
both.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13211#comment:167>
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