Re: lguest over qemu

[Rusty Russell <rusty@rustcorp.com.au>]

On Sat, 2007-08-25 at 10:48 -0500, Eric Van Hensbergen wrote:
> On 7/11/07, Rusty Russell <rusty@rustcorp.com.au> wrote:
> > > always get this message (I have insisted with different virtual ram
> > > amounts):
> > >
> > >                     lguest: failed to get page 167304
> >
> > I did most of my development under qemu, so I don't think that's the
> > issue.  Can you send me your .config?
> >
> 
> I had a different problem which was when I was running a kernel with
> WDT's enabled, I was getting a:
>    lguest: bad page table entry
> 
> Both the advantechwdt and the alimi7101 WDT's were initializing and
> reporting I/O address 0x0443 already in use.
> 
> I removed the WDT's from the configuration and everything was fine.

Interesting.  Enabling them here gives the expected messages:

        WDT driver for Advantech single board computer initialising.
        advantechwdt: I/O address 0x0443 already in use
        advantechwdt: probe of advantechwdt failed with error -5
        alim7101_wdt: Steve Hill <steve@navaho.co.uk>.
        alim7101_wdt: ALi M7101 PMU not present - WDT not set
        
But it boots fine.

Perhaps it's a hardware difference (we do expose some of the host CPU
capabilities to the guest), or perhaps some other config difference
which is masking the problem?

Thanks,
Rusty.