* Dave Hansen: > On 10/11/2018 08:15 AM, Yu-cheng Yu wrote: >> Create a guard area between VMAs to detect memory corruption. > > This is a pretty major change that has a bunch of end-user implications. > It's not dependent on any debugging options and can't be turned on/off > by individual apps, at runtime, or even at boot. > > Its connection to this series is also tenuous and not spelled out in the > exceptionally terse changelog. I agree. We did have application failures due to the introduction of the stack gap, so this change is likely to cause failures when applied to existing mappings as well.