On Sat, 5 Apr 2025 at 05:58, Nathan Chancellor nathan@kernel.org wrote:
On Thu, Apr 03, 2025 at 04:17:44PM +0530, Naresh Kamboju wrote:
I’ve re-run the tests to validate the boot behavior on the Rock Pi 4 board with different Clang nightly versions and the latest mainline kernel.
The combination using clang-nightly:20250319 successfully booted the Rock Pi 4 board. However, the combination using clang-nightly:20250401 failed to boot the same board.
"name": "clang", "version": "21.0.0", "version_full": "Debian clang version 21.0.0 (++20250401112529+290d7b82cb5d-1~exp1~20250401112547.1360)"
Reference:
Thank you for verifying. Do you test with clang-20 and if so, are tests at that same revision passing? I want to make sure this is an LLVM regression before trying to get into figuring out how to bisect with your setup. Another way to do that is to see if clang-nightly boots are failing on the stable branches, which would point to Linux not being at fault.
clang-nightly boot failed with stable-rc 6.12, 6.13 and 6.14 and mainline and next on following devices and virtual platforms. - dragonboard-410c - dragonboard-845c - rk3399-rock-pi-4b - Juno-r2 - e850-96 - FVP (Fast Models Fixed Virtual Platforms)
Boot Test links, - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.... - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.... - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12....
Lore link, - https://lore.kernel.org/all/CA+G9fYve7+nXJNoV48TksXoMeVjgJuP8Gs=+1br+Qur1DPW...
Cheers, Nathan