Re: [uml-user] Not able to give 384M to guest.

[Juraj H. <ju...@pr...>]

Am Dienstag, den 27.12.2005, 18:13 +0100 schrieb Blaisorblade:
> On Tuesday 27 December 2005 16:55, M. Feenstra wrote:
> > Hi,
> 
> > I'm experimenting with UML and have 2 UML guests running on a host with
> > 1024M of memory. If I give the UML guests 128M of memory all is fine. If I
> > give it 384 (or even 256) the UML guest boots until "VFS: Mounted root
> > (ext2 filesystem) readonly." and then freezes.. no oops.. nothing.. only
> > thing I can do is kill it.
> 
> > I have read in the archive a simular topic in october of this year but
> > didn't find the answer to this issue.
> 
> > I run a debian UML kernel       : 2.4.26-3um on the guest
> 
> > I run a home-patched skas kernel: 2.6.12.6-skas3-v9-pre7 on the host
> > (debian)
> 
> > The debian UML kernel is build using this settings for "General Setup" (so
> > no HIGHMEM for example):
> 
> > I set the value /proc/sys/vm/max_map_count to 262144 (should allow to 1G
> > guests right?).
> Yes.
> 
> > Any hints on this item???
> 
> Using a more recent kernel, disabling TT mode (which helps for big amounts of 
> memory, but only on recent enough kernels - >= around 2.6.9, IIRC), enabling 
> static linking.

Why did I have to figure that out for myself???