I don't think it's related to signals, whole system freezes - Ctrl-Alt-F1 (switch to root console), Ctrl-Alt-Del, screen, mouse. Nothing works. Mouse does not move, screen does not update. For example if you turn on/off laptop charger or terminate wifi, charger/wifi icon will not update. It's reproducible on real hardware and on Virtual box VM (of course only guest system freezes), and confirmed by Ubuntu team member.

In reply to Re^2: Perl Deep Recursion locks up modern linuxes? by vsespb
in thread Perl Deep Recursion locks up modern linuxes? by vsespb

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