[issue16560] Python sighandlers delayed for no reason

[Zdenek Pavlas]

Zdenek Pavlas added the comment:

> for example, if you call malloc() from within a signal handler, you can get a deadlock or a crash if the signal was received while the process was in the middle of an malloc() call.

Thanks, I see the problem.  malloc() implements locking (when threads are enabled), but does not mask signals.  When re-entered, this deadlocks.

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status: open -> closed

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<http://bugs.python.org/issue16560>
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