On Fri, Jul 24, 2015 at 02:19:20AM +0200, Michelle Sullivan wrote:
> Glen Barber wrote:
> >
> > ZFS on i386 requires KSTACK_PAGES=4 in the kernel configuration to work
> > properly, as noted in the 10.1-RELEASE errata (and release notes, if
> > I remember correctly).
> >
> > We cannot set KSTACK_PAGES=4 in GENERIC by default, as it is too
> > disruptive.  
> 
> Why?
> 

Because it takes resources away from userland threads.

> > If you are using ZFS on i386, you *must* build your own
> > kernel for this.  It is otherwise unsupported by default.
> >   
> Why is zfs on i386 so hard?  Why is it even in the GENERIC kernel if
> it's unsupported?
> 

It is not in GENERIC by default.  You have to specifically kldload(8)
zfs.ko.

Glen

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