On Tue, 17 Apr 2018, Dave Hansen wrote: > > These are _very_ lightly tested. I'm throwing them out there for > folks are looking for a fix. > > --- > > From: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> > > pageattr.c is not friendly when it encounters empty (zero) PTEs. The > kernel linear map is exempt from these checks, but kernel text is not. > This patch adds the code to also exempt kernel text from these checks. Bah. Changelogs should tell the WHY and not the WHAT > The proximate cause of these warnings was most likely an __init area > that spanned a 2MB page boundary that resulted in a "zero" PMD. This doesn't make any sense at all. Thanks, tglx
