Comment 13 for bug 1055534

I've started seeing this problem with the most recent kernel(3.8.0-19), even when swap is turned off.

For example, when resuming from suspend, kwapd0 will start using 99-100% if CPU according to top, even though the reported swap usage is 0.

running swapoff -a has no effect, and the only way to stop kswapd0 from consuming all CPU is to close any process that is currently using a lot of RAM (for example Firefox).

It is currently so bad that at times the entire computer is unusable as kswapd0 is thrashing the disk, blocking all other IO (shell, TTY, UI)and I am currently investigating ways to physically prevent the process from ever starting.