Re: kern/39052: assertion "!ISSET(bp->b_cflags, BC_BUSY)" failed

[Andrew Doran <ad%netbsd.org@localhost>]

On Fri, Jun 27, 2008 at 05:14:27PM +0200, Manuel Bouyer wrote:

> It's not amr(4) or ld(4) either. I've now been able to reproduce it on
> a dom0 with a single wd(4) drive on ahcisata(4), and also with a
> GENERIC+DEBUG+DIAGNOSTIC+REALEXTMEM="130048" amd64 kernel. The key point seems
> to have the RAM set to 128MB. With bigger values, this problem doens't seem to
> happen. So it would be something that occurs when the buffer cache is under
> pressure, and is not related to any device or pseudo-device, or Xen.

Is it swapping to a file or to a partition?

Andrew