On Mon, 2004-12-06 at 10:11, Mark Wong wrote:
> > > eax: 2073096d ebx: 00000000 ecx: 2073096d edx: 2073096d
> > > esi: ffcae800 edi: 00008000 ebp: f747f3e0 esp: f750eea0
>
> c01669cf: 8b 00 mov (%eax),%eax
eax is pointing into userspace, and it got dereferenced. Looks like a
bad pfn_to_page(). Could be caused by a bogus page->section, too.
Adding something like
if(page < (struct page *)PAGE_OFFSET) {
printk("debugging...., pfn: page: etc...");
BUG();
}
to pfn_to_page() can usually get more interesting information out of
this kind of bug.
-- Dave
