Re: BUG: unable to handle kernel paging request in __switch_to

[David Hildenbrand]

> int main()
> {
>   int fd = open("/dev/kvm", 0x80102ul);
>   int vm = ioctl(fd, KVM_CREATE_VM, 0);
>   int  cpu = ioctl(vm, KVM_CREATE_VCPU, 4);

Not even a memory region :) So maybe the first memory access directly
triggers a fault?

>   ioctl(cpu, KVM_RUN, 0);
>   return 0;
> }
> 
> And, yes, this in fact triggers instant reboot of kernel (running in qemu).
> Am I missing something here?
> 
> +kvm maintainers, you can see full thread here:
> https://groups.google.com/forum/#!topic/syzkaller-bugs/_oveOKGm3jw
> 


-- 

Thanks,

David / dhildenb