On Fri, Jan 05, 2018 at 12:15:07PM +0000, Jamie Iles wrote: > Resending with Greg's correct email address. > > On Fri, Jan 05, 2018 at 12:11:14PM +0000, Jamie Iles wrote: > > Hi Greg, > > > > When booting a 4.4.y stable-rc kernel with a fairly minimal config and > > CONFIG_KASAN=y and "nopti" on the kernel command line, or v4.4.109, I > > get a load of KASAN spews as below. A bisect takes me back to > > 85d3700c744a11 (x86/mm: If INVPCID is available, use it to flush global > > mappings), but I think the real fix is to also add 69e0210fd01ff15 > > (x86/kasan: Clear kasan_zero_page after TLB flush) onto your branch to > > address these false positives. Again, nice find! I've queued this up as well, thanks. greg k-h