On Thu, Feb 11, 2016 at 05:16:00PM -0800, Andy Lutomirski wrote:
> fpu__drop(fpu);
> if (__copy_from_user(&fpu->state.xsave, buf_fx, state_size) ||
> __copy_from_user(&env, buf, sizeof(env))) {
> fpstate_init(&fpu->state);
> err = -1;
> } else {
> sanitize_restored_xstate(tsk, &env, xfeatures, fx_only);
> }
>
> fpu->fpstate_active = 1;
>
> <-- preempted right here
>From IRC:
<amluto> you could try sticking a schedule() right after that
fpu->fpstate_active = 1; line
> if (use_eager_fpu()) {
> preempt_disable();
> fpu__restore(fpu);
> preempt_enable();
Something for me to try when I get a chance.
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
