On Thu, 1 May 2014 01:14:37 +0900
Izumi Tsutsui <tsut...@ceres.dti.ne.jp> wrote:

> skrll@ wrote:
> > I'm still seeing issues with my cobalt, but I'll keep hunting.
> Probably all mips port MD bus_dma.c
> (in arc, cobalt, emips, ews4800mips, hpcmips, mipsco, pmax, sgimips)
> need the similar fix as mips/bus_dma.c rev 1.28.
> (only algor, evbmips and sbmips use mips/bus_dma.c)

Hmm, the data corruption when piping stuff between processes seems to
be gone, but I still see occasional corruption when accessing files, so
bus_dma is definitely a reasonable suspect.
On Loongson ( which uses mips/bus_dma.c IIRC ) I see corruption only
when writing via nfs, on sgimips it's apparently any file access, but
it takes a lot longer to trigger.

have fun

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