Re: [uml-devel] problems with kernel-2.6.1(UML)

[BlaisorBlade <blaisorblade_spam@yahoo.it>]

Alle 23:18, domenica 21 marzo 2004, K Santhosh Kumar ha scritto:
> Host Kernel: 2.6.1-1.57skas3+mpls1custom
>
>
> UML configuration
> kernel    => linux-2.6.1
> uml-patch => uml-patch-2.6.1-1
Well, use kernel 2.6.4 and patch 2.6.4 and the problem 2 will go out by sure, 
problem 3 will maybe disappear and problem 1 could also.

About config: in your answer it can be useful to specify the command lines you 
use and the hardware on the host (at least CPU type and freq + RAM size)

> with root_fs   => root_fs.rh-7.2-full.pristine.20020312
> -------------------------------------
> 1) I am not able to create COW files
Say what you do *exactly* and we'll help you.

>         During the booting of virtual machine I get the
>   following  error, but it will not stuck.
stuck? 
>   Error: MM: mm:core: failed to acquire shared memory segment (Cannot
>   allocate memory): OS: No such file or directory  [FAILED]
>
>   PS: I can login to the terminals(xterms)  which are popped up and also
>       can connect to the network.

So what is the problem exactly? You get the "MM..." error only when you use 
COW? Or always? Anyhow, it seems that a service is failing to start. Identify 
which one is and tell us.

> with root_fs => root_fs.rh-9-full.pristine.20030724
> -----------------------------------
> 3) During the booting time the kernel stucks at
>
> 	----------------------
> 	802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
> 	All bugs added by David S. Miller <davem@redhat.com>
> 	 /dev/ubd/disc0: unknown partition table
> 	VFS: Mounted root (ext2 filesystem) readonly.
> 	Mounted devfs on /dev
> 	----------------------

Try loop-mounting the root_fs and renaming /lib/tls away. This is probably an 
issue with NPTL, if it happens starting from RH 9 root_fs.

-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729



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