linux-kernel - Re: [PATCH] improve_stack: make stack dump output useful again

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Message-ID: <CA+55aFzzDDNLc3NzDSJ1q3ctyVJK9FXyCUxzBwQeoUHR94BLnA@mail.gmail.com>
Date:	Mon, 17 Mar 2014 12:49:04 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Sasha Levin <sasha.levin@...cle.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] improve_stack: make stack dump output useful again

On Mon, Mar 17, 2014 at 12:31 PM, Sasha Levin <sasha.levin@...cle.com> wrote:
>
> What about duplicate symbol names? Without the full hex address we lose
> the ability to correctly translate from symbol name to file/line.

Yeah, and we should strive to avoid that issue.

The thing is, think about address randomization. We can pretty much
assume that is going to be the standard behavior due to it being
really cheap (just a trivial boot time cost), and helping some
security issues.

So we might have a few ambiguous cases, that's still better than the
alternative.

                Linus
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