* Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > > DPRINTK(ALT, "alt table %px, -> %px", start, end); > > + > > + /* > > + * In the case CONFIG_X86_5LEVEL=y, KASAN_SHADOW_START is defined using > > + * cpu_feature_enabled(X86_FEATURE_LA57) and is therefore patched here. > > + * During the process, KASAN becomes confused and triggers > > because of partial LA57 convertion .. Not all LA57 related sites are patched yet at this point, and KASAN sees a weird & broken mixture of LA48 and LA57 runtime semantics, right? Ie. as far as KASAN is concerned, the LA48 -> LA57 behavioral switchover must be atomic, but during the kernel code patching process it isn't. Thanks, Ingo
