# lsof | grep /proc/acpi/event esd 3999 notting 34r REG 0,3 0 4026532088 /proc/acpi/event WTF?
Hmm, I don't see it opening /proc/acpi/event in the code anywhere. I'll ask upstream.
Doesn't seem to happen anymore in FC6, and this is an ancient bug, so I'll just close it.