Hey all I am trying a simple hypercall between dom0 and Xen hypervisor (__hypercall2). I am passing arg to hypercall as pointer to a strucutre. As i increase the size of struct more then some fixed value say 16000bytes then machine reboots at following code code of copy_from_guest: const typeof(*(ptr)) *_s = (hnd).p; ............<= this location typeof(*(ptr)) *_d = (ptr); raw_copy_from_guest(_d, _s+(off), sizeof(*_d)*(nr)); i not getting the the reference of this .p element in hnd (which is basically a struct passed from dom0). any clue? or i am missing something? thanks for any help. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel