On Thu, Jul 22, 2010 at 05:37:16PM +1000, Neil Brown wrote:

I suspect that problem is that "do_sync" and "do_barriers" in
drivers/md/raid1.c are still 'bool' and should now be 'unsigned long'.

I'm not sure how wide '_Bool' is, but I'm guess it isn't wide enough.

Could you please try changing ever 'bool' in that file to 'unsigned long'
and see if that fixes it?

Yes, that fixes it.  We even had someone sending that fix a while ago,
but it seems it's not applied to Jens' tree yet and I can't find it
anymore either right now.