Comment 0 for bug 1631302

Revision history for this message
vsespb (vsespb) wrote : System becomes unresponsive when running code with deep-recursion under unprilileged user

In Ubuntu 16.04 if you run
perl -e 'sub x { x() }; x()'
(this commands does a deep recursion, eats all memory)

under non-root user

whole system becomes unresponsive, mouse, keyboard does not work. Screen does not update when you plug/unplug charger, for example. The only way to quit is to press power button and shut down machine.

Expected bahaviour: Ctrl-C, Ctrl-Alt-Del, Ctrl-Alt-F1, mouse, at least something should work.

Repsoduced on HP Pavilion 16, SSD with encryption, encrypted Swap. Reproduced by at least one another person with Ubuntu 16.04 with SSD.