linux-kernel - Re: [PATCH] scripts/decode_stacktrace: warn when modpath is needed but is unset

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Date:   Mon, 15 Jun 2020 15:37:52 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Sasha Levin <sashal@...nel.org>
Cc:     Shuah Khan <skhan@...uxfoundation.org>,
        Konstantin Khlebnikov <koct9i@...il.com>,
        Joerg Roedel <jroedel@...e.de>,
        Andrew Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Takashi Iwai <tiwai@...e.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "the arch/x86 maintainers" <x86@...nel.org>
Subject: Re: [PATCH] scripts/decode_stacktrace: warn when modpath is needed
 but is unset

On Mon, Jun 15, 2020 at 3:24 PM Sasha Levin <sashal@...nel.org> wrote:
>
> When a user tries to parse a symbol located inside a module he must have
> modpath set. Otherwise, decode_stacktrace won't be able to parse the
> symbol correctly.
>
> Right now the failure is silent and easily missed by the user. What's
> worse is that by the time the user realizes what happened (or someone on
> LKML asks him to add the modpath and re-run), he might have already got
> rid of the vmlinux/modules.

Well, that looks straightforward.

Applied,

              Linus