Re: kvm-84 and guests with more than 3536 MB Ram?

[Lukas Kolbe <l-lists@einfachkaffee.de>]

Am Dienstag, den 24.03.2009, 17:04 +0100 schrieb Tomasz Chmielewski:
> Anthony Liguori schrieb:
> > Lukas Kolbe wrote:
> >> On Di, 2009-03-24 at 14:59 +0200, Avi Kivity wrote:
> >>  
> >>> Lukas Kolbe wrote:
> >>>    
> >>>> Hi!
> >>>>
> >>>> This is my first post here so please bear with me; we have a Debian
> >>>> Lenny system with kernel 2.6.28 and kvm-84, and can't start a guest 
> >>>> with
> >>>> more than 3536 MB Ram. With kvm-72 (the version lenny released with) we
> >>>> can use all 7GB that is intended for that guest.
> 
> (...)
> 
> >> qemu: loading initrd (0x781b93 bytes) at 0x000000007f87e000
> >> create_userspace_phys_mem: Invalid argument
> >> kvm_cpu_register_physical_memory: failed
> >>
> >> And back to the console. When I try the same with 3584MB, I can boot
> >> into the machine flawlessly.
> >>
> >> Sorry for getting the numbers wrong in the first mail - the actual
> >> problem starts at 3585MB Ram for the guest.
> >>
> >> If you can't reproduce it with yout 2.6.28 and kvm-84, I should possibly
> >> take this to the debian bugtracker ...
> >>   
> > 
> > kvm-72 is pretty old.  It used to be that we used phys_ram_base for 
> > loading kernel/initrds which would break when using > 3.5GB of memory.  
> > I wouldn't be surprised if that fix happened post kvm-72.
> 
> Doesn't he say that it did work for him with kvm-72, but does not with 
> kvm-84?

Exactly that :)
kvm-72 works like a charm, with the noted exception that it crashes
every now and than on our system (during heavy load), which was the
reason we tried 084 in the first place.

-- 
Lukas