On Wed, Aug 19, 2015 at 4:51 PM, Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx> wrote: > On 08/19/2015 03:14 PM, Linus Walleij wrote: >> Integrator/AP (ARMv5): >> >> This one mounted with an ARMv5 ARM926 tile. It boots nicely >> (but takes forever) with KASan and run all test cases (!) just like >> for the other platforms but before reaching userspace this happens: > > THREAD_SIZE hardcoded in act_mm macro. > > This hack should help: > > diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S > index c671f34..b1765f2 100644 > --- a/arch/arm/mm/proc-macros.S > +++ b/arch/arm/mm/proc-macros.S > @@ -32,6 +32,9 @@ > .macro act_mm, rd > bic \rd, sp, #8128 > bic \rd, \rd, #63 > +#ifdef CONFIG_KASAN > + bic \rd, \rd, #8192 > +#endif > ldr \rd, [\rd, #TI_TASK] > ldr \rd, [\rd, #TSK_ACTIVE_MM] > .endm Yes this work, thanks! I now get to userspace. Tested-by: Linus Walleij <linus.walleij@xxxxxxxxxx> I have compiled Trinity and running some stress on different boards. The ARMv7 seems to rather die from random nasty stuff from the syscall or OOM rather than any KASan-detected bugs, but I'll keep hammering at it a big. I have some odd patch I'll pass along. Yours, Linus Walleij -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>