zone(9) is broken on SMP?!

Jeff Roberson jroberson at chesapeake.net
Wed Nov 26 16:13:13 PST 2003


On Thu, 27 Nov 2003, Florian C. Smeets wrote:

> Max Laier wrote:
> > If I build attached kmod and kldload/-unload it on a GENERIC kernel w/
> > SMP & apic it'll error out:
> > "Zone was not empty (xx items).  Lost X pages of memory."
> >
> > This is on a p4 HTT, but seems reproducible on "proper" SMP systems as
> > well. UP systems don't show it however.
> >
> > Can somebody please try and report? Thanks!
>
> Yes this is reproducible on a real SMP system:
>
> bender kernel: Zone UMA test zone was not empty (65 items).  Lost 1
> pages of memory.

I'll look into this over the weekend thanks.

Cheers,
Jeff

>
> Regards,
> flo
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