Gerd Hoffmann wrote:
> config is attached.
>
> It faults in fork syscall, down in pgd_walk(). It finds a pmd entry
> pointing to a machine page where the mfn_to_pfn translation returns -1
> aka 0xffffffff. Trying to find a struct page for that one doesn't work ...
>
Hm, that's interesting but curious. Hm, the mapping is in userspace?
How did userspace get a foreign/special mapping?
Is this the very first fork()? Nothing should be mapped down there at
all, so maybe there's a bug in initial pagetable setup.
J
