Re: [PATCH RT 2/2 v4] preempt-rt/x86: Delay calling signals in int3

Damn. Sorry for noise...

On 02/05, Oleg Nesterov wrote:

+int force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
+{
+#ifdef CONFIG_PREEMPT_RT_FULL
+	if (in_atomic()) {
+		if (WARN_ON_ONCE(t != current))

This is certainly wrong in upstream kernel. It does use force_
this way although it shouldn't imho.

But _probably_ this is fine for rt? We are going to take the mutex,
we shouldn't do this in atomic context. But, once again, I do not
really know what in_atomic() means in rt.

Oleg.