[Lguest] lguest: unhandled trap

[Tiago Maluta]

--- On Sun, 10/19/08, Rusty Russell <rusty at rustcorp.com.au> wrote:

> > Hi,
> >
> > I'm using 2.6.27-05323-g26e9a39 and when I try to
> use lguest:
> >
> > ~#Documentation/lguest/lguest 128 vmlinux
> > lguest: unhandled trap 14 at 0xc0594f6a (0xff900000)
> 
> Yes, I found the same issue.  Does this fix it for you?
> 

Yes. This code fixed the problem.


> Subject: lguest: don't try DMI
> 
> dmi_scan_machine breaks under lguest; this is the simplest
> fix (though
> ugly).  Perhaps this hurts Xen too?
> 
> Error:
> 	lguest: unhandled trap 14 at 0xc04edeae (0xffa00000)
> 
> Signed-off-by: Rusty Russell <rusty at rustcorp.com.au>
> 
> diff -r 47449cd8e3d8 drivers/firmware/dmi_scan.c
> --- a/drivers/firmware/dmi_scan.c	Fri Oct 17 12:14:40 2008
> +1100
> +++ b/drivers/firmware/dmi_scan.c	Fri Oct 17 20:54:30 2008
> +1100
> @@ -369,6 +369,11 @@ void __init dmi_scan_machine(void)
>  	char __iomem *p, *q;
>  	int rc;
>  
> +#ifdef CONFIG_PARAVIRT
> +	if (strcmp(pv_info.name, "lguest") == 0)
> +		goto error;
> +#endif
> +
>  	if (efi_enabled) {
>  		if (efi.smbios == EFI_INVALID_TABLE_ADDR)
>  			goto error;

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