[RFC PATCH 8/9] powerpc/configs/skiroot: Disable xmon default & enable reboot on panic

[Joel Stanley]

On Thu, 16 Jan 2020 at 01:48, Michael Ellerman <mpe at ellerman.id.au> wrote:
>
> If the skiroot kernel crashes we don't want it sitting at an xmon
> prompt forever. Instead it's more helpful to reboot and bring the
> boot loader back up, and if the crash was transient we can then boot
> successfully.
>
> Similarly if we panic we should reboot, with a short timeout in case
> someone is watching the console.
>
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Acked-by: Joel Stanley <joel at jms.id.au>

> ---
>  arch/powerpc/configs/skiroot_defconfig | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/configs/skiroot_defconfig b/arch/powerpc/configs/skiroot_defconfig
> index bd661a9a9410..12c96c8b0c1d 100644
> --- a/arch/powerpc/configs/skiroot_defconfig
> +++ b/arch/powerpc/configs/skiroot_defconfig
> @@ -29,6 +29,7 @@ CONFIG_ALTIVEC=y
>  CONFIG_VSX=y
>  CONFIG_NR_CPUS=2048
>  CONFIG_CPU_LITTLE_ENDIAN=y
> +CONFIG_PANIC_TIMEOUT=30
>  # CONFIG_PPC_VAS is not set
>  # CONFIG_PPC_PSERIES is not set
>  # CONFIG_PPC_OF_BOOT_TRAMPOLINE is not set
> @@ -293,6 +294,7 @@ CONFIG_LIBCRC32C=y
>  CONFIG_PRINTK_TIME=y
>  CONFIG_MAGIC_SYSRQ=y
>  CONFIG_DEBUG_STACKOVERFLOW=y
> +CONFIG_PANIC_ON_OOPS=y
>  CONFIG_SOFTLOCKUP_DETECTOR=y
>  CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
>  CONFIG_HARDLOCKUP_DETECTOR=y
> @@ -301,5 +303,4 @@ CONFIG_WQ_WATCHDOG=y
>  # CONFIG_SCHED_DEBUG is not set
>  # CONFIG_FTRACE is not set
>  CONFIG_XMON=y
> -CONFIG_XMON_DEFAULT=y
>  # CONFIG_RUNTIME_TESTING_MENU is not set
> --
> 2.21.1
>