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Re: panic: xpq_flush_cache, err -22

On Fri, Aug 03, 2012 at 01:42:55AM +0000, Emmanuel Dreyfus wrote:
> On Thu, Aug 02, 2012 at 10:26:44PM +0200, Manuel Bouyer wrote:
> > OK, so domUs are not allowed to flush the cache. Now we need to find what
> > causes this cross-call.
> > Watching what calls xc_lowpri() could help, but I'm not sure it's
> > called with xpq_flush_cache() directly. There may be an intermediate 
> > function
> > with a tail-call to xpq_flush_cache ...
> I found what changed since my previous successful usage of puffs on this
> VM: modular kernel. Reverting to a monolithic kernel works around the
> problem. I am not sure I ever ran puffs as a module on i386, therefore
> it may be not a regression.

That probably explains it: plain i386 modules won't work with a Xen
kernel, as the ABI is different.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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