linux-kernel - Re: [PATCH] ARM: drop experimental mark for ARM stack unwinding

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Message-ID: <20180811165728.GS30658@n2100.armlinux.org.uk>
Date:   Sat, 11 Aug 2018 17:57:28 +0100
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     Stefan Agner <stefan@...er.ch>
Cc:     catalin.marinas@....com, arnd@...db.de,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: drop experimental mark for ARM stack unwinding

On Sat, Aug 11, 2018 at 12:31:27PM +0200, Stefan Agner wrote:
> ARM stack unwinding is upstream since 2009 and has been proven
> working well. At this time it is the preferred stack unwinding
> support since it also supports Thumb 2. Do not scare people
> and drop the EXPERIMENTAL mark.

Actually, there are still cases where we're missing the annotations -
I've seen them in various oops dumps, but I forget where they are.
What I do remember is that they didn't seem trivial to fix at the
time, so it's still recommended that frame pointers are used if you
want to guarantee getting a debuggable oops dump.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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