Hello. Atsushi Nemoto wrote:
TX49 CPUs have a write buffer, so we need to select CPU_HAS_WB -- otherwise all Toshiba RBTX49xx kernels fail to build.
TX49 CPUs also have a SYNC instruction which flushes a write buffer. I think it is enough and wbflush() have been abused in arch/mips/tx4927/ and arch/mips/tx4938/ codes.
How about a patch? I needed the kernel up and running, so I came up with the obvious patch. I don't have no time to fix this assumed abuse. I should also note, that this patch wasn't enough to bring RBTX4938 kernel back to life since rbhma4500_defconfig is broken somewhere so the kernel doesn't output anything on the colsole). If I have some more time, I'll try to investigate what exactly was causing this (I have a working .config)...
WBR, Sergei