On Wed, Jun 20, 2018 at 08:07:31AM -0700, Dave Hansen wrote:
> On 06/13/2018 05:45 PM, Ram Pai wrote:
> > --- a/tools/testing/selftests/vm/protection_keys.c
> > +++ b/tools/testing/selftests/vm/protection_keys.c
> > @@ -577,7 +577,8 @@ int sys_pkey_free(unsigned long pkey)
> > int ret =
On 06/13/2018 05:45 PM, Ram Pai wrote:
> --- a/tools/testing/selftests/vm/protection_keys.c
> +++ b/tools/testing/selftests/vm/protection_keys.c
> @@ -577,7 +577,8 @@ int sys_pkey_free(unsigned long pkey)
> int ret = syscall(SYS_pkey_free, pkey);
>
> if (!ret)
> -
When a key is freed, the key is no more effective.
Clear the bits corresponding to the pkey in the shadow
register. Otherwise it will carry some spurious bits
which can trigger false-positive asserts.
cc: Dave Hansen
cc: Florian Weimer
Signed-off-by: Ram Pai
---