linux-kernel - Re: [PATCH 08/12] x86/dumpstack: Pin the target stack in save_stack_trace

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Message-ID: <20160914145556.5whqcpzys7c23nib@treble>
Date:   Wed, 14 Sep 2016 09:55:56 -0500
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     x86@...nel.org, Borislav Petkov <bp@...en8.de>,
        linux-kernel@...r.kernel.org, Brian Gerst <brgerst@...il.com>,
        Jann Horn <jann@...jh.net>
Subject: Re: [PATCH 08/12] x86/dumpstack: Pin the target stack in
 save_stack_trace_tsk()

On Tue, Sep 13, 2016 at 02:29:28PM -0700, Andy Lutomirski wrote:
> This will prevent a crash if the target task dies before or while
> dumping its stack once we start freeing task stacks early.
> 
> Signed-off-by: Andy Lutomirski <luto@...nel.org>

Do we need a similar patch for show_stack()?

-- 
Josh