After a while, the procstats fields will overflow the signed int field and the hd leds will be permanently on. Use long instead of int for these counters Gentoo original bug: https://bugs.gentoo.org/show_bug.cgi?id=325615
Upstream appears to be inactive. Last release in 2007. Hasn't responded to my emails regarding patches from Debian in over a year. Obtained from http://hules.free.fr/wmhdplop/wmhdplop-0.9.9.tar.gz.