Re: [patch] lockdep: fix possible races while disabling lock-debugging

From: Ingo Molnar
Date: Mon Dec 11 2006 - 02:25:04 EST



* Jarek Poplawski <jarkao2@xxxxx> wrote:

> > @@ -567,12 +601,10 @@ static noinline int print_circular_bug_t
> > if (debug_locks_silent)
> > return 0;
> >
> > - /* hash_lock unlocked by the header */
> > - __raw_spin_lock(&hash_lock);
> > this.class = check_source->class;
> > if (!save_trace(&this.trace))
> > return 0;
> > - __raw_spin_unlock(&hash_lock);
> > +
>
> IMHO lock is needed here for save_trace.

indeed. I'll do a fix for this.

Ingo
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