Re: [linuxsh-shmedia-dev] SCSI status

[Richard C. <Ric...@su...>]

* Paul Mundt <le...@li...> [2003-06-30]:
> What about if you boot with the caches disabled? Does the same corruption
> persist?

I was starting to wonder about cache coherency myself.  Anyway following
your suggestion I've configured out the D$.  And here we have a smoking
gun.  Based on a very simple test

1. mke2fs
2. e2fsck
3. mount
4. cp file to partition
5. sync
6. umount
7. dumpe2fs (shows clean)
8. e2fsck -f

The wierd behaviour is gone.  I'm trying a larger test now, but I need
to go home ASAP so will probably need to finish it in the morning.

Anyway, it's looking like cache coherency around PCI DMA that might be
the problem?

-- 
Richard \\\ SuperH Core+Debug Architect /// .. At home ..
  P.    /// ric...@su...  ///  rc...@rc...
Curnow  \\\ http://www.superh.com/    ///  www.rc0.org.uk