Re: [Xen-devel] Bugs in mini-os on i386 architecture

[Grzegorz Milos <gm281@xxxxxxxxx>]

This is not a bug (it's a feature :) ).

As soon as console is initialised the output is no longer printed to the 
emergency console. It is available through the usual: xm console <dom_name>.
If you want to print something to the emergency console use newly 
defined function: xprintk.
Cheers
Gregor


> I am finding the same issues with x86_64 too. So I think this patch
> needs to go in. 
>
> Gregor, do you agree? I am also found that minios i386 and x86_64, now
> does not complete console_init() with the latest changeset
> 9364:22f1618cf57c. Any idea why this is happening? 
>
> Cheers,
> Aravindh
>
> xenbox:~/xen/xen-unstable/extras/mini-os # xm create -c domain_config 
> Using config file "domain_config".
> Started domain Mini-OS
> xenconsole: Could not read tty from store: No such file or directory
> Bootstrapping...
> Xen Minimal OS!
> start_info:   ffffffff00028000
>   nr_pages:   8192  shared_inf: 00faf000
>   pt_base:    ffffffff0002b000  mod_start:  0x0
>   mod_len:    0
>   flags:      0x0
>   cmd_line:   
> MM: Init
>   _text:        ffffffff00000000
>   _etext:       ffffffff0000c67a
>   _edata:       ffffffff0000de78
>   stack start:  ffffffff00014be0
>   _end:         ffffffff00017088
>   start_pfn:    33
>   max_pfn:      2000
> Mapping memory range 0xffffffff00400000 - 0xffffffff02000000
> MM: Initialise page allocator for
> ffffffff00041000(41000)-ffffffff02000000(2000000)
> MM: done
> Initialising timer interface
> Initialising console ...
>
>
>
> > -----Original Message-----
> > From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> > bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Melvin Anderson
> > Sent: Monday, March 20, 2006 10:18 AM
> > To: xen-devel@xxxxxxxxxxxxxxxxxxx
> > Subject: [Xen-devel] Bugs in mini-os on i386 architecture
> >
> > I have been trying to get mini-os to run on i386 architecture,
> > (xen-unstable.hg, 9325:1ecb7f1ddc79) but have hit problems:
> >
> > -- header file extras/mini-os/include/console.h is missing,
> >
> > -- type mismatch in extras/mini-os/xenbus/xenbus_xs.c causes compile
> >    to fail, and
> >
> > -- page fault occurs in extras/mini-os/mm.c because page directory
> table
> >    entries are set up incorrectly.  The array mmu_updates in
> > new_pt_frame()
> >    has zero entries, but should have at least 1 entry.
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