From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
Linus Walleij <linus.walleij@linaro.org>,
kasan-dev <kasan-dev@googlegroups.com>,
syzkaller <syzkaller@googlegroups.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
Hailong Liu <liu.hailong6@zte.com.cn>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: Arm + KASAN + syzbot
Date: Tue, 19 Jan 2021 11:13:19 +0000 [thread overview]
Message-ID: <20210119111319.GH1551@shell.armlinux.org.uk> (raw)
In-Reply-To: <CACT4Y+Yyw6zohheKtfPsmggKURhZopF+fVuB6dshJREsVz8ehQ@mail.gmail.com>
On Tue, Jan 19, 2021 at 12:05:01PM +0100, Dmitry Vyukov wrote:
> But I also spied this in your makefile:
>
> config-earlydebug: config-base
> $(CURDIR)/scripts/config --file $(config_file) \
> --enable DEBUG_LL \
> --enable EARLY_PRINTK \
> --enable DEBUG_VEXPRESS_UART0_RS1 \
>
> With these configs, qemu prints something more useful:
>
> pulseaudio: set_sink_input_volume() failed
> pulseaudio: Reason: Invalid argument
> pulseaudio: set_sink_input_mute() failed
> pulseaudio: Reason: Invalid argument
> Error: invalid dtb and unrecognized/unsupported machine ID
> r1=0x000008e0, r2=0x00000000
> Available machine support:
> ID (hex) NAME
> ffffffff Generic DT based system
> ffffffff Samsung Exynos (Flattened Device Tree)
> ffffffff Hisilicon Hi3620 (Flattened Device Tree)
> ffffffff ARM-Versatile Express
> Please check your kernel config and/or bootloader.
>
>
> What does this mean? And is this affected by KASAN?... I do specify
> the ARM-Versatile Express machine...
>
> Can it be too large kernel size which is not supported/properly
> diagnosed by qemu/kernel?
It means that your kernel only supports DT platforms, but there was
no DT passed to the kernel (r2 is the pointer to DT). Consequently
the kernel has no idea what hardware it is running on.
I don't use qemu very much, so I can't suggest anything.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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next prev parent reply other threads:[~2021-01-19 11:14 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-18 16:31 Arm + KASAN + syzbot Dmitry Vyukov
2021-01-19 8:36 ` Krzysztof Kozlowski
2021-01-19 8:46 ` Linus Walleij
2021-01-19 10:04 ` Dmitry Vyukov
2021-01-19 10:17 ` Linus Walleij
2021-01-19 10:23 ` Dmitry Vyukov
2021-01-19 10:28 ` Linus Walleij
2021-01-19 10:53 ` Dmitry Vyukov
2021-01-19 11:05 ` Dmitry Vyukov
2021-01-19 11:13 ` Russell King - ARM Linux admin [this message]
2021-01-19 11:17 ` Dmitry Vyukov
2021-01-19 11:43 ` Russell King - ARM Linux admin
2021-01-19 12:05 ` Dmitry Vyukov
2021-01-19 12:36 ` Russell King - ARM Linux admin
2021-01-19 18:57 ` Dmitry Vyukov
2021-01-19 19:48 ` Russell King - ARM Linux admin
2021-01-21 13:14 ` Russell King - ARM Linux admin
2021-01-21 13:49 ` Dmitry Vyukov
2021-01-21 14:04 ` Arnd Bergmann
2021-01-21 13:59 ` Dmitry Vyukov
2021-01-21 14:52 ` Linus Walleij
2021-01-26 21:24 ` Dmitry Vyukov
2021-01-27 8:24 ` Linus Walleij
2021-01-27 9:39 ` Dmitry Vyukov
2021-01-27 9:57 ` Linus Walleij
2021-01-27 10:12 ` Dmitry Vyukov
2021-01-27 10:19 ` Russell King - ARM Linux admin
2021-03-11 10:54 ` Dmitry Vyukov
2021-03-11 13:42 ` Russell King - ARM Linux admin
2021-03-11 18:05 ` Dmitry Vyukov
2021-03-11 13:55 ` Linus Walleij
2021-03-11 14:09 ` Russell King - ARM Linux admin
2021-03-11 14:37 ` Linus Walleij
2021-03-11 14:55 ` Arnd Bergmann
2021-03-11 18:08 ` Dmitry Vyukov
2021-03-15 14:01 ` Linus Walleij
2021-03-15 19:03 ` Russell King - ARM Linux admin
2021-01-19 13:22 ` Linus Walleij
2021-01-19 8:41 ` Linus Walleij
2021-01-19 8:43 ` Linus Walleij
2021-01-19 10:18 ` Dmitry Vyukov
2021-01-19 10:27 ` Linus Walleij
2021-01-19 10:36 ` Dmitry Vyukov
2021-01-19 10:03 ` Mark Rutland
2021-01-19 10:34 ` Dmitry Vyukov
2021-01-19 10:55 ` Russell King - ARM Linux admin
2021-01-19 13:00 ` Mark Rutland
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