[Pkg-xen-devel] Bug#617421: Bug#617421: Bug#617421: xen-hypervisor-4.0-i386: can't migrate (or save/resume) lenny guests: BUG: recent printk recursion

[Ian Campbell]

On Wed, 2011-03-09 at 14:59 +0100, Ferenc Wagner wrote:
> Ian Campbell <ijc at hellion.org.uk> writes:
> 
> > On Wed, 2011-03-09 at 13:01 +0100, Ferenc Wagner wrote:
> >
> >> Ian Campbell <ijc at hellion.org.uk> writes:
> >> 
> >>> On Wed, 2011-03-09 at 11:51 +0100, Ferenc Wagner wrote:
> >>>
> >>>> Ian Campbell <ijc at hellion.org.uk> writes:
> >>>> 
> >>>>> On the other hand, the Xen enabled kernel in Lenny turned out to be a
> >>>>> bit of a disaster and I could well imagine that the new hypervisor/tools
> >>>>> are simply exposing a prexisting bug in that kernel.
> >>>> 
> >>>> It wasn't entirely explicit, but I don't use (and haven't ever used) the
> >>>> Xen-enabled lenny kernel: it was way too unstable for production use
> >>>> from the very beginning.  The guests I'm talking about run the latest
> >>>> linux-image-2.6.26-2-686-bigmem kernel (version 2.6.26-26lenny2),
> >>>> sporting upstream Xen domU support, and no dom0 support.
> >>>
> >>> Did pvops in 2.6.26 support migration? I must admit I thought it didn't
> >>> yet.
> >> 
> >> It apparently did... but it does not anymore. :(
> >
> > I can confirm that suspend/restore/migrate support was not added to the
> > mainline kernel until commit 0e91398f2a5d which first appeared in
> > 2.6.27-rc1.
> >
> > Not sure what you were testing before but it wasn't 2.6.26 ;-)
> 
> Didn't you port it to the lenny kernel?  I'm starting to remember...

Hrm, debian/patches/features/all/xen/tip-x86.patch seems to suggest
someone did (and I moved the patch so I guess I knew about it at one
point).

Ian.

-- 
Ian Campbell
Current Noise: Heaven & Hell - Breaking Into Heaven

I want to kill everyone here with a cute colorful Hydrogen Bomb!!