Hi Ralf, The unified cache code (c-r4k.c) does not set the waybit for MIPS32/MIPS64 processors. This patch needs to be applied to {mips,mips64}/mm/c-r4k.c in 2.4 and 2.5. Chris -- Chris Dearman The Fruit Farm, Ely Road voice +44 1223 706206 MIPS Technologies (UK) Chittering, Cambs, CB5 9PH fax +44 1223 706250