mv /sbin/swapoff /sbin/swapoff.real
cat >/sbin/swapoff
#!/bin/sh
/sbin/swapoff.real
/sbin/wipeswap
^D
chmod +x /sbin/swapoff
Any system that doesn't consider this fail-safe enough, shouldn't rely on
this zeroing operation even if performed by the kernel. See the URL I
posted in this thread about encrypted swap.
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