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

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Message-ID: <9aa82e51-8330-4be1-89ea-bcfadcecea29@linaro.org>
Date: Sun, 20 Oct 2024 11:47:05 -0700
From: Richard Henderson <richard.henderson@...aro.org>
To: Naresh Kamboju <naresh.kamboju@...aro.org>,
 open list <linux-kernel@...r.kernel.org>,
 Linux ARM <linux-arm-kernel@...ts.infradead.org>,
 lkft-triage@...ts.linaro.org, Linux Regressions
 <regressions@...ts.linux.dev>, qemu-devel@...gnu.org
Cc: Arnd Bergmann <arnd@...db.de>, Mark Brown <broonie@...nel.org>,
 Catalin Marinas <catalin.marinas@....com>,
 Aishwarya TCV <Aishwarya.TCV@....com>,
 Peter Maydell <peter.maydell@...aro.org>,
 Alex Bennée <alex.bennee@...aro.org>,
 Anders Roxell <anders.roxell@...aro.org>,
 Vincenzo Frascino <vincenzo.frascino@....com>,
 Thomas Gleixner <tglx@...utronix.de>,
 Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: Re: Qemu v9.0.2: Boot failed qemu-arm with Linux next-20241017 tag.

On 10/20/24 10:39, Naresh Kamboju wrote:
> On Fri, 18 Oct 2024 at 12:35, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
>>
>> 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
> 
> Anders bisected this boot regressions and found,
> # first bad commit:
>    [efe8419ae78d65e83edc31aad74b605c12e7d60c]
>      vdso: Introduce vdso/page.h
> 
> We are investigating the reason for boot failure due to this commit.

Probably fixed on qemu master with

commit 67d762e716a7127ecc114e9708254316dd521911
Author: Ard Biesheuvel <ardb@...nel.org>
Date:   Fri Sep 27 09:10:51 2024 +0200

     target/arm: Avoid target_ulong for physical address lookups

r~