Re: WARN in do_rt_tgsigqueueinfo()
From: Oleg Nesterov
Date: Thu May 15 2014 - 14:05:04 EST
On 05/15, Mateusz Guzik wrote:
>
> On Thu, May 15, 2014 at 11:54:15AM -0400, Dave Jones wrote:
> >
> > I'm of the opinion that a user-triggerable WARN is a bug, but aparently
> > not everyone else feels that way.
I didn't really like this WARN_ONCE() when I looked at the patch which
added it, but I didn't try to argue.
> imho warning sysadmins about userspace using deprecated stuff is fine as
> long as users are not able to spam the console with it.
Agreed,
> Warning reported here just looks scary and provides no information for
> sysadmins so I guess it hould be changed.
Again, agreed.
So imo we should either remove it, ot turn it into
pr_warn_once("something meaningful");
Oleg.
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