linux-kernel - next-20250407: qemu_x86_64 clang-20, clang-nightly no console log but gcc-13 boot pass

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Message-ID: <CA+G9fYt4VVa3kUDR+ze05xM+fRmMBVfbBTsypUq5oOpAfuzjfg@mail.gmail.com>
Date: Mon, 7 Apr 2025 17:15:55 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: open list <linux-kernel@...r.kernel.org>, clang-built-linux <llvm@...ts.linux.dev>, 
	Linux Regressions <regressions@...ts.linux.dev>, lkft-triage@...ts.linaro.org
Cc: Nathan Chancellor <nathan@...nel.org>, Dan Carpenter <dan.carpenter@...aro.org>, 
	Arnd Bergmann <arnd@...db.de>, Anders Roxell <anders.roxell@...aro.org>
Subject: next-20250407: qemu_x86_64 clang-20, clang-nightly no console log but
 gcc-13 boot pass

Regressions on qemu-x86_64 with clang-20 and clang-nightly on the
Linux next-20250407 and no console output.

The gcc-13 builds boot pass on qemu-x86_64.

First seen on the next-20250407.
Bad: next-20250407
Good:next-20250404

* qemu-x86_64, boot
 - boot/clang-20-lkftconfig
 - boot/clang-20-lkftconfig-compat
 - boot/clang-nightly-lkftconfig

Regression Analysis:
- New regression? Yes
- Reproducibility? Yes

Boot regression: qemu_x86_64 clang-20, clang-nightly no console log
Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

## Boot log
<no console output>

Clang-20 versions:
  "name": "clang",
  "version": "20.1.2",
  "version_full": "Debian clang version 20.1.2
(++20250330123306+5ba194972878-1~exp1~20250330003423.94)"

Clang-nightly versions:
  "name": "clang",
  "version": "21.0.0",
  "version_full": "Debian clang version 21.0.0
(++20250402105505+c57b9c233a87-1~exp1~20250402225526.1363)"

qemu-system-x86:
   installed at version: 9.2.2+ds-1+b2

## Source
* Kernel version: 6.15.0-rc1-next-20250407
* Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
* Git sha: 2bdde620f7f2bff2ff1cb7dc166859eaa0c78a7c
* Git describe: 6.15.0-rc1-next-20250407
* Project details:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250407/

## Test
* Test log: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250407/testrun/27930289/suite/boot/test/clang-20-lkftconfig/log
* Test details:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250407/testrun/27930289/suite/boot/test/clang-20-lkftconfig/details/
* Test history:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250407/testrun/27930289/suite/boot/test/clang-20-lkftconfig/history/
* Test history:
https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250407/testrun/27930138/suite/boot/test/clang-nightly-lkftconfig/history/
* Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2vNpFdnHoEolEu77VmTYD8bmuBd/
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2vNpFdnHoEolEu77VmTYD8bmuBd/config

--
Linaro LKFT
https://lkft.linaro.org