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Message-ID: <ZxIotWFxJf8H9bYX@arm.com>
Date: Fri, 18 Oct 2024 10:21:57 +0100
From: Catalin Marinas <catalin.marinas@....com>
To: Naresh Kamboju <naresh.kamboju@...aro.org>
Cc: open list <linux-kernel@...r.kernel.org>,
	Linux ARM <linux-arm-kernel@...ts.infradead.org>,
	qemu-devel@...gnu.org, lkft-triage@...ts.linaro.org,
	Linux Regressions <regressions@...ts.linux.dev>,
	Mark Brown <broonie@...nel.org>,
	Alex Bennée <alex.bennee@...aro.org>,
	Peter Maydell <peter.maydell@...aro.org>,
	Anders Roxell <anders.roxell@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	Aishwarya TCV <aishwarya.tcv@....com>
Subject: Re: Qemu v9.0.2: Boot failed qemu-arm64 with Linux next-20241017 tag

On Fri, Oct 18, 2024 at 12:56:01PM +0530, Naresh Kamboju wrote:
> The QEMU-arm64 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 arm64 devices boot pass.
> 
> This is always reproducible.
> First seen on Linux next-20241017 tag.
>   Good: next-20241016
>   Bad: next-20241017
> 
> qemu-arm64-protected:
>   boot:
>     * clang-19-lkftconfig
>     * gcc-13-lkftconfig
>     * clang-nightly-lkftconfig
> 
> Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
> 
> Boot log:
> ---------
> [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x000f0510]
> [    0.000000] Linux version 6.12.0-rc3-next-20241017
> (tuxmake@...make) (Debian clang version 19.1.2
> (++20241001023520+d5498c39fe6a-1~exp1~20241001143639.51), Debian LLD
> 19.1.2) #1 SMP PREEMPT @1729156545
> [    0.000000] KASLR enabled
> [    0.000000] random: crng init done
> [    0.000000] Machine model: linux,dummy-virt
> [    0.000000] efi: UEFI not found.
> [    0.000000] Capping linear region to 51 bits for KVM in nVHE mode
> on LVA capable hardware.
> ...
> [    0.000000] Kernel command line: console=ttyAMA0,115200 rootwait
> root=/dev/vda debug verbose console_msg_format=syslog
> systemd.log_level=warning rw kvm-arm.mode=protected earlycon
> ...
> <6>[    0.305549] SME: maximum available vector length 256 bytes per vector
> <6>[    0.306214] SME: default vector length 32 bytes per vector
> **
> ERROR:target/arm/internals.h:923:regime_is_user: code should not be reached
> Bail out! ERROR:target/arm/internals.h:923:regime_is_user: code should
> not be reached
> <nothing after this>

Qemu bug. See this email from Peter:

https://lore.kernel.org/r/CAFEAcA8uJL1t2MDjaJL7u5oW4ns23_E+sk7987x4gAcs3dSZOw@mail.gmail.com

-- 
Catalin

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