Re: [Xen-devel] freebsd domu 14, bad address

[Derek Murray <Derek.Murray@xxxxxxxxxxxx>]

On 27 Feb 2007, at 14:30, Mark Williamson wrote:

> I can't quite see why the traceback that the logs show would  
> actually be
> occurring - maybe someone who has more familiarity with the code  
> can provide
> some insight?  Any clues off the top of your head?
From a quick glance through the privcmd driver (in linux-2.6-xen- 
sparse/drivers/xen/privcmd/privcmd.c ) it seems that an error 14  
(EFAULT) is returned by the privcmd ioctl when there is a problem on  
carrying out a copy_from_user() of the arguments to the ioctl.
This ioctl is wrapped by the xc_map_foreign_*, do_privcmd and  
do_xen_hypercall functions in tools/libxc/xc_linux.c . Another  
possibility is in the evtchn driver (in linux-2.6-xen-sparse/drivers/ 
xen/evtchn/evtchn.c ), in which the evtchn_read, _write and _ioctl  
functions can also return -EFAULT. This functions are also wrapped by  
functions in xc_linux.c.
Hope this helps.

Regards,

Derek Murray.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel