#14055: Fix sage-cleaner
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Reporter: jdemeyer | Owner: leif
Type: defect | Status: needs_review
Priority: critical | Milestone: sage-5.10
Component: scripts | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers: John
Palmieri, Leif Leonhardy, Volker Braun
Authors: Jeroen Demeyer, Volker Braun | Merged in:
Dependencies: | Stopgaps:
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Comment (by nbruin):
Replying to [comment:102 vbraun]:
> For the record, we build ECL with `--disable-threads` so it shouldn't
have any multithread support. It does link with pthreads, though perhaps
boehmgc needs that.
OK, good.
> I don't think the sage-cleaner has anything to do with the problem.
So perhaps this should go on a different ticket then?
> The new doctest framework seems to be the only thing that uses SIGCHLD
in the Sage library.
I took a quick look at
[http://sourceforge.net/p/ecls/ecl/ci/master/tree/src/c/unixint.d
unixint.d] and it seems ECL does install a handler for SIGCHLD. Perhaps
you're just unlucky that the SIGCHLD gets delivered at a very inopportune
moment when ECL hasn't quite finished setting up its handlers? Or are we
just sloppy in how we change handlers? The handler they use is defined in
[http://sourceforge.net/p/ecls/ecl/ci/master/tree/src/c/unixsys.d
unixsys.d] as `si::wait-for-all-processes`.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14055#comment:103>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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