On Thu, 15 Jul 2021 at 23:27, Greg Kroah-Hartman gregkh@linuxfoundation.org wrote:

On Thu, Jul 15, 2021 at 11:22:52PM +0530, Naresh Kamboju wrote:

...

Results from Linaro’s test farm. Regression detected on arm and arm64 due to the following patch with CONFIG_CORESIGHT=y enabled,

coresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer() commit 5fae8a946ac2df879caf3f79a193d4766d00239b upstream.

Build error:

drivers/hwtracing/coresight/coresight-tmc-etf.c: In function 'tmc_update_etf_buffer': drivers/hwtracing/coresight/coresight-tmc-etf.c:477:33: error: 'CORESIGHT_BARRIER_PKT_SIZE' undeclared (first use in this function) 477 | if (lost && i < CORESIGHT_BARRIER_PKT_SIZE) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~

Reported-by: Linux Kernel Functional Testing lkft@linaro.org

ref: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc/-/jobs/1427834... https://builds.tuxbuild.com/1vMA3olyV9E6Yr1Ix0LWLlXinkv/

I have no idea what tree/branch/queue this report is from :(

Sorry, stable-rc 4.14.240-rc1.

c81cb98781af ("Linux 4.14.240-rc1") arm64 (defconfig+7) with gcc-11

steps to reproduce: ------------------------ # TuxMake is a command line tool and Python library that provides # portable and repeatable Linux kernel builds across a variety of # architectures, toolchains, kernel configurations, and make targets. # # TuxMake supports the concept of runtimes. # See https://docs.tuxmake.org/runtimes/, for that to work it requires # that you install podman or docker on your system. # # To install tuxmake on your system globally: # sudo pip3 install -U tuxmake # # See https://docs.tuxmake.org/ for complete documentation.

tuxmake --runtime podman --target-arch arm64 --toolchain gcc-11 --kconfig defconfig --kconfig-add https://builds.tuxbuild.com/1vMA3olyV9E6Yr1Ix0LWLlXinkv/config

- Naresh