linux-kernel - Re: [PATCH] arm:traps: Don't print stack or raw PC/LR values in backtraces

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Message-ID: <20201009081820.jargnmck6zfkzegx@linutronix.de>
Date:   Fri, 9 Oct 2020 10:18:20 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Russell King - ARM Linux admin <linux@...linux.org.uk>
Cc:     Xiaoming Ni <nixiaoming@...wei.com>, dima@...sta.com,
        will@...nel.org, jpoimboe@...hat.com, akpm@...ux-foundation.org,
        christian.brauner@...ntu.com, viro@...iv.linux.org.uk,
        ldufour@...ux.ibm.com, amanieu@...il.com, walken@...gle.com,
        ben.dooks@...ethink.co.uk, tglx@...utronix.de, mingo@...nel.org,
        vincent.whitchurch@...s.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, wangle6@...wei.com,
        luohaizheng@...wei.com
Subject: Re: [PATCH] arm:traps: Don't print stack or raw PC/LR values in
 backtraces

On 2020-10-09 09:08:50 [+0100], Russell King - ARM Linux admin wrote:
> I am really not happy about this - it hurts at least my ability to
> debug the kernel when people post oopses to the mailing list. If
> people wish to make the kernel harder to debug, and are prepared
> to be told "your kernel is undebuggable" then this patch is fine.

I haven't look at the patch but don't they keep/add the representation:
  PC: symbol+offset/size
  LR: symbol+offset/size

? This is needed at very least as a replacement for the missing address.

Sebastian