Tracked down a system hang with ACPI on an Acer notebook (not specific to Acer, it appears to be a kernel bug, may be a mismatch between kernel and possibly buggy ACPI implementation). Discovered that some machines that offer a soft S5 (soft off) state don't appear to actually implement it. sigh.
Found a bug in aboot. msw tracked it down to aboot not knowing about changes to the ext2 filesystem. Helped fix it.
Made sawmill build on machines without X running by embedding Xvfb in the spec file. Had to search for available X displays carefully to avoid a race condition.