On Monday, August 29, 2016 03:41:23 PM Borislav Petkov wrote: > On Mon, Aug 29, 2016 at 09:15:00AM +0200, Pavel Machek wrote: > > Sounds about as easy as hot unplugging arbitrary memory address. IOW > > "not easy". > > Regardless, forcibly panicking the system more is still the wrong > approach IMO.
Agreed. > Instead, I'd try to issue a big fat warning that BIOS corrupts E820 and > that the user should disable hibernation on that box and never ever > enable it again. > > After that, the kernel should *disable* hibernation for the current boot > so any further hibernation runs don't even happen. Maybe even taint > itself. Yes, taint the kernel when e820 mismatch is detected. It may be a good idea to start an emergency shutdown in that case too, but after getting to a point when it actually has a chance to work. Thanks, Rafael
