linux-kernel - Re: [PATCH] x86/nmi: fix use of unallocated cpumask_var

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Message-ID: <20141125143732.15d47029@gandalf.local.home>
Date:	Tue, 25 Nov 2014 14:37:32 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Sasha Levin <sasha.levin@...cle.com>
Cc:	jkosina@...e.cz, paulmck@...ux.vnet.ibm.com, pmladek@...e.cz,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/nmi: fix use of unallocated cpumask_var_t

On Tue, 25 Nov 2014 11:06:00 -0500
Sasha Levin <sasha.levin@...cle.com> wrote:

> Commit "x86/nmi: Perform a safe NMI stack trace on all CPUs" has introduced
> a cpumask_var_t variable:
> 
> 	+static cpumask_var_t printtrace_mask;
> 
> But never allocated it before using it, which caused a NULL ptr deref when
> trying to print the stack trace:

Thanks, I pulled this in and I'm running it under my test suite now.

-- Steve
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