Presumably it's somehow related to memory? What would
sudo cat /dev/urandom > /dev/mem
do? Trash all RAM? All non-kernel virtual memory? None of the above?
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It provides access to the system's physical memory. Here's some more info on what /dev/mem is. Yes -- it could cause all sorts of problems. A reboot should fix you, but bad things can happen very easily. Be careful! :-) |
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/dev/mem provides access to system physical memory, not virtual. The kernels virtual address space can be accessed using /dev/kmem. It's primarily used to access IO memory addresses related to peripheral hardware, like video adaptors. |
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dd if=/dev/urandom of=/dev/kmem bs=1 count=1 seek=$RANDOM– user3490 Sep 9 '12 at 12:14