2008-12-12 09:35:39

by Miklos Szeredi

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Subject: [regression] uml is very slow on 2.6.28 host

When the UML boot gets to the userspace part it gets really really
slow. It takes about 20 times the normal time to fully boot. CPU
seems to be idle.

Guest version doesn't matter. Host version 2.6.27 was OK, latest git
is not OK. I'm running 32bit guest on 64bit host.

Anyone else experiencing this?

Thanks,
Miklos


2008-12-21 13:57:54

by Peter Zijlstra

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Subject: Re: [regression] uml is very slow on 2.6.28 host

On Fri, 2008-12-12 at 10:35 +0100, Miklos Szeredi wrote:
> When the UML boot gets to the userspace part it gets really really
> slow. It takes about 20 times the normal time to fully boot. CPU
> seems to be idle.
>
> Guest version doesn't matter. Host version 2.6.27 was OK, latest git
> is not OK. I'm running 32bit guest on 64bit host.

Does:

http://lkml.org/lkml/2008/12/16/40

help any?

2008-12-22 18:53:48

by Miklos Szeredi

[permalink] [raw]
Subject: Re: [regression] uml is very slow on 2.6.28 host

On Sun, 21 Dec 2008, Peter Zijlstra wrote:
> On Fri, 2008-12-12 at 10:35 +0100, Miklos Szeredi wrote:
> > When the UML boot gets to the userspace part it gets really really
> > slow. It takes about 20 times the normal time to fully boot. CPU
> > seems to be idle.
> >
> > Guest version doesn't matter. Host version 2.6.27 was OK, latest git
> > is not OK. I'm running 32bit guest on 64bit host.
>
> Does:
>
> http://lkml.org/lkml/2008/12/16/40
>
> help any?

Nope.

Thanks,
Miklos