Qemu v9.0.2: Boot failed qemu-arm with Linux next-20241017 tag.

[Alex Bennée]

Naresh Kamboju <naresh.kamboju at linaro.org> writes:

> The QEMU-ARMv7 boot has failed with the Linux next-20241017 tag.
> The boot log is incomplete, and no kernel crash was detected.
> However, the system did not proceed far enough to reach the login prompt.
>
> Please find the incomplete boot log links below for your reference.
> The Qemu version is 9.0.2.
> The arm devices TI beaglebone x15 boot pass.
>
> This is always reproducible.
> First seen on Linux next-20241017 tag.
>   Good: next-20241016
>   Bad: next-20241017
>
> qemu-armv7:
>   boot:
>     * clang-19-lkftconfig
>     * gcc-13-lkftconfig
>     * clang-nightly-lkftconfig
>
> Reported-by: Linux Kernel Functional Testing <lkft at linaro.org>
>
> Boot log:
> -------
> [    0.000000] Booting Linux on physical CPU 0x0
> [    0.000000] Linux version 6.12.0-rc3-next-20241017
> (tuxmake at tuxmake) (arm-linux-gnueabihf-gcc (Debian 13.3.0-5) 13.3.0,
> GNU ld (GNU Binutils for Debian) 2.43.1) #1 SMP @1729156545
> [    0.000000] CPU: ARMv7 Processor [414fc0f0] revision 0 (ARMv7), cr=10c5387d
> [    0.000000] CPU: div instructions available: patching division code
> [    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
> [    0.000000] OF: fdt: Machine model: linux,dummy-virt
> [    0.000000] random: crng init done
> [    0.000000] earlycon: pl11 at MMIO 0x09000000 (options '')
> [    0.000000] printk: legacy bootconsole [pl11] enabled
> [    0.000000] Memory policy: Data cache writealloc
> [    0.000000] efi: UEFI not found.
> [    0.000000] cma: Size (0x04000000) of region at 0x00000000 exceeds
> limit (0x00000000)
> [    0.000000] cma: Failed to reserve 64 MiB on node -1

Is this a highmem related thing. Passing -m 2G allows it to get further
and 4G is obviously at the limit of 32 bit?

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro