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

From: Oleg Nesterov
Date: Sun Feb 05 2012 - 14:39:01 EST

Damn. Sorry for noise...

On 02/05, Oleg Nesterov wrote:
> +int force_sig_info(int sig, struct siginfo *info, struct task_struct *t)
> +{
> + 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.


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