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

On Mon, 7 Apr 2025 at 18:17, Naresh Kamboju naresh.kamboju@linaro.org wrote:

On Mon, 7 Apr 2025 at 17:15, Naresh Kamboju naresh.kamboju@linaro.org wrote:

...

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@linaro.org

Anders bisected this and found, # first bad commit: [cc34e658c6db493c1524077e95b42d478de58f2b] x86/boot: Move the early GDT/IDT setup code into startup/

Lore report link,

• https://lore.kernel.org/all/CA+G9fYt4VVa3kUDR+ze05xM+fRmMBVfbBTsypUq5oOpAfuz...

Thanks for the report. I'll look into this.