linux-kernel - Re: Crash on armv7-a using KASAN

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Message-ID: <CACRpkda-Hey3PJe1SuCLZs35QNT22dnMc1HWd1UnZ-iec5xXGw@mail.gmail.com>
Date: Tue, 15 Oct 2024 16:40:24 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Mark Rutland <mark.rutland@....com>
Cc: Clement LE GOFFIC <clement.legoffic@...s.st.com>, Russell King <linux@...linux.org.uk>, 
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>, Kees Cook <kees@...nel.org>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, Mark Brown <broonie@...nel.org>, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	Ard Biesheuvel <ardb@...nel.org>, linux-stm32@...md-mailman.stormreply.com, 
	Antonio Borneo <antonio.borneo@...s.st.com>
Subject: Re: Crash on armv7-a using KASAN

On Tue, Oct 15, 2024 at 4:00 PM Mark Rutland <mark.rutland@....com> wrote:

> > I am trying to reproduce it and failing :/
> > (Using Torvald's HEAD)
(...)
> I used a config per Clement's instructions, i.e.
>
> | [mark@...rids:~/src/linux]% git checkout v6.12-rc3
> | HEAD is now at 8e929cb546ee4 Linux 6.12-rc3
> | [mark@...rids:~/src/linux]% git clean -qfdx
> | [mark@...rids:~/src/linux]% echo 'CONFIG_KASAN=y' > arch/arm/configs/fragment-kasan.config
> | [mark@...rids:~/src/linux]% usekorg 14.2.0 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- vexpress_defconfig fragment-kasan.config

OK I got the crash, now also with my build scripts.

Dunno what I did wrong...

Yours,
Linus Walleij