Re: WAPBL kernel assertion

[Antti Kantee <pooka%cs.hut.fi@localhost>]

On Sat Jan 08 2011 at 15:42:19 +0200, Antti Kantee wrote:
> On Sat Jan 08 2011 at 14:32:23 +0100, Manuel Bouyer wrote:
> > Hello,
> > on a NetBSD 5.1 Xen domU, I got:
> > panic: kernel diagnostic assertion "wl->wl_dealloccnt < wl->wl_dealloclim" 
> > failed: file "/home/builds/ab/netbsd-5/src/sys/kern/vfs_wapbl.c", line 1673
> > 
> > file system is clean (I forced a fsck). For now I'm running without wapbl.
> > Does this ring a bell to someone ?
> 
> Try including revs 1.27 and 1.28 of vfs_wapbl.c.  I can't recall the
> details anymore, but I remember the overflow was quite easy to trigger
> on a rump kernel.  Maybe the problem triggers easier in a virtual
> environment?

Actually, it probably triggers because Xen includes DIAGNOSTIC, and
elsewhere ... :(

-- 
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