Fast model boot failure with Linux next-20250312

[Naresh Kamboju]

On Wed, 19 Mar 2025 at 20:25, Mark Rutland <mark.rutland at arm.com> wrote:
>
> On Wed, Mar 19, 2025 at 08:07:47PM +0530, Naresh Kamboju wrote:
> > Regressions on the arm64 Fast Model (FVP-AEMvA) caused boot failures starting
> > with Linux next-20250312 and persisting through next-20250319.
> >
> > First seen on the next-20250312
> >  Good: next-20250311
> >  Bad:  next-20250312 .. next-20250319
> >
> > Regressions found on FVP:
> >  - boot
> >
> > Regression Analysis:
> >  - New regression? Yes
> >  - Reproducible? Yes
> >
> > Boot regression: Fast model boot failure with Linux next-20250312
> > Reported-by: Linux Kernel Functional Testing <lkft at linaro.org>
> >
> > Anders bisected this to this commit id,
> >
> > # first bad commit:
> >   [858c7bfcb35e1100b58bb63c9f562d86e09418d9]
> >   arm64/boot: Enable EL2 requirements for FEAT_PMUv3p9
> >
> > NOTE:
> >   LKFT is currently running FVP Fast Models version 11.24.
> >   Planned upgrade to the Fast Models version 11.28 in this sprint.
>
> What firmware (and version therof) are you running within the model?

Fast Models [11.24.11 (Nov 29 2023)]
Booting Trusted Firmware
BL1: v2.9(release):v2.9.0
BL2: v2.9(release):v2.9.0
BL31: v2.9(release):v2.9.0
UEFI firmware (version  built at 22:31:25 on May 26 2023)
UEFI v2.70 (EDK II, 0x00010000)

We need to update the firmware version at our end.

>
> For example, if the EL3 firmware lacks support for FEAT_FGT2 or
> FEAT_PMUv3p9, the kernel will trap to EL3 early during boot and die.
>
> It would be really helpful if you could capture that in the report in
> future.
>
> Mark.
>
> >
> > ## Boot log
> >   <No crash log on the console>
> >
> > ## Source
> > * Kernel version: 6.14.0-rc7
> > * Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> > * Git sha: ff7f9b199e3f4cc7d61df5a9a26a7cbb5c1492e6
> > * Git describe: next-20250319
> > * Project details:
> > https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250319
> > * DUT: arm64 Fast Model (FVP-AEMvA)
> > * Toolchains: gcc-13 and clang-20
> >
> > ## Build
> > * Build log: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250319/testrun/27675691/suite/boot/test/gcc-13-lkftconfig/log
> > * Build history:
> > https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250319/testrun/27675685/suite/boot/test/gcc-13-lkftconfig/history/
> > * Build details:
> > https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250319/testrun/27675691/suite/boot/test/gcc-13-lkftconfig/
> > * Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2uX2EtC2pQdmVZ7ccoyhoi01Yy0/
> > * Kernel config:
> > https://storage.tuxsuite.com/public/linaro/lkft/builds/2uX2EtC2pQdmVZ7ccoyhoi01Yy0/config
> >
> > --
> > Linaro LKFT
> > https://lkft.linaro.org
> >

- Naresh