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Subject: Re: [RFC] [PATCH 2.6.37-rc5-tip 14/20] 14: uprobes: Handing int3
 and singlestep exception.
From: Peter Zijlstra <peterz@infradead.org>
To: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>, Steven Rostedt <rostedt@goodmis.org>,
        Linux-mm <linux-mm@vger.kernel.org>,
        Arnaldo Carvalho de Melo <acme@infradead.org>,
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        Jim Keniston <jkenisto@linux.vnet.ibm.com>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        Andi Kleen <andi@firstfloor.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
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Date: Tue, 25 Jan 2011 14:56:14 +0100
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On Thu, 2010-12-16 at 15:29 +0530, Srikar Dronamraju wrote:
> +       if (unlikely(!utask)) {
> +               utask = add_utask();
> +
> +               /* Failed to allocate utask for the current task. */
> +               BUG_ON(!utask);

That's not really sane...

> +               utask->state = UTASK_BP_HIT;
> +       }