Re: alarm_signal_handler is called too frequently

[Richard Stallman]

    so popup_get_selection is not used for the non-toolkit build at all.

That means item 3 is not a real problem.  That is good.

    > 2. However, popup_get_selection is called inside BLOCK_INPUT, and it
    > calls timer_check, which can call Lisp code.  This seems to be a bug.

I still think that is a real problem.

    It craches, but directly at start before any interaction.  Disabling the
    toolbar (./emacs -q -xrm '*toolBar: 0') makes it start OK, but it does 
    not
    crash on any popup menu.

1. If it does not crash with popup menus, that could be because no
timer was running.  Were there any timers that should have run?  Maybe
something else disables the running of timers from
popup_get_selection.  In that case, there is no bug here, but the code
to check timers is misleading.

2. Is popup_get_selection used, the way you compiled Emacs?

3. Can you debug the crash that does happen?  I think anything that
causes a crash with this patch has the potential to cause crashes
occasionally even without this patch.