[Octave-bug-tracker] [bug #30477] "help" command hangs because SIGCHLD handler is not async-signal-safe

[anonymous]

Follow-up Comment #11, bug #30477 (project octave):

Addition to my comment 10.  I get results that are consistent
with Dimitri's in comment #7.  It appears that builtin
functions are more likely to work the first time, and after
the first help that works it continues to work.  It is
some, but not all,  help <function found in file...>, that
fail on first use of help.  This does suggest that the
analysis in comment #8 is relevant.

If all else fails, a possible "solution" might be to do a
fake "help sin" (or something equivalent) during initialization.

Better would be to discover what it is about the first successful
use that makes subsequent uses work.  It seems likely that this
is connected with malloc use somehow.

Michael Godfrey
p.s. Sorry that I included the "bt" inline below. I should have
     attached it.

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