Re: [next] arm: Internal error: Oops: 5 PC is at __read_once_word_nocheck

[Naresh Kamboju]

Hi Ard and Russell,

The boot test pass on linux next-20220310 tag with  KASAN=y on BeagleBoard x15
device. but LTP cve tests reproduced the reported kernel crash  [1].
>From the available historical data I can confirm that this is an
intermittent issue on
BeagleBoard x15 devices.

OTOH, the kernel crash is always reproducible on qemu-arm with KASAN=y
while booting which has been known to fail for a long time.

>From the Ardb tree I have boot tested qemu-arm with KASAN=y the reported
kernel crash is always reproducible.

The build steps [3] and extra Kconfigs.

- Naresh
[1] https://lkft.validation.linaro.org/scheduler/job/4701310
[2] https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/log/
[3] https://builds.tuxbuild.com/2661dIAPUjE2DMJvye91He2gus0/tuxmake_reproducer.sh