Re: [Xen-devel] [PATCH 1/3] x86: calculate precisely the memory needed by init_memory_mapping

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

stefano.stabellini@xxxxxxxxxxxxx writes ("[Xen-devel] [PATCH 1/3] x86: 
calculate precisely the memory needed by init_memory_mapping"):
> +     if (pgt_buf_end != pgt_buf_top)
> +             printk(KERN_DEBUG "initial kernel pagetable allocation wasted 
> %lx"
> +                             " pages\n", pgt_buf_top - pgt_buf_end);

If (due to a bug) pgt_buf_end > pgt_buf_top, this will printk a
message about wasting a negative number of pages, rather than
crashing.  Is there something else that will catch this case ?

Ian.

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