On Tue, Dec 14, 2021 at 5:38 PM Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > > @@ -124,6 +125,7 @@ choice > > config INIT_STACK_ALL_ZERO > > bool "zero-init everything (strongest and safest)" > > depends on CC_HAS_AUTO_VAR_INIT_ZERO > > + depends on !KMSAN > > So this means KMSAN is a developer debugging feature only and should > never be turned on on a real device/server that has users? 100% correct. KMSAN is way slower than KASAN, it also eats 2/3 of your memory to store the metadata. I thought it was sort of self-evident, but I can surely mention this explicitly in the cover letter.
