Lua and signals

[Bernd Eggink <monoped@...>]

Hi,

I wonder if signal handling (as in luaposix) is supposed to work in any 
situation. Or are there limitations, preconditions etc.(on Linux)?

I'm asking because I have a program where signal() simply doesn't work. 
After putting

	local P = require "posix"
	P.signal(P.SIGUSR1, function() print("signal") end)

at the beginning of the program, I expect the command "kill -s USR1 
$pid" to print "signal", but instead the program exits immediately. This 
even happens when the signal handling function is completely empty.

The program in question is pretty complex. However, in simple test 
programs signal() works as expected.

Any ideas what could prevent signal() from working correctly?

Greetings,
Bernd