Re: [PATCH v2] crash, powerpc: Default to CRASH_DUMP=n on PPC_BOOK3S_32

From: Michael Ellerman
Date: Wed Sep 18 2024 - 23:24:37 EST


Dave Vasilevsky <dave@xxxxxxxxxxxxx> writes:
> Fixes boot failures on 6.9 on PPC_BOOK3S_32 machines using
> Open Firmware. On these machines, the kernel refuses to boot
> from non-zero PHYSICAL_START, which occurs when CRASH_DUMP is on.
>
> Since most PPC_BOOK3S_32 machines boot via Open Firmware, it should
> default to off for them. Users booting via some other mechanism
> can still turn it on explicitly.
>
> Does not change the default on any other architectures for the
> time being.
>
> Signed-off-by: Dave Vasilevsky <dave@xxxxxxxxxxxxx>
> Reported-by: Reimar Döffinger <Reimar.Doeffinger@xxxxxx>
> Closes: https://lists.debian.org/debian-powerpc/2024/07/msg00001.html
> Fixes: 75bc255a7444 ("crash: clean up kdump related config items")
> ---
> arch/arm/Kconfig | 3 +++
> arch/arm64/Kconfig | 3 +++
> arch/loongarch/Kconfig | 3 +++
> arch/mips/Kconfig | 3 +++
> arch/powerpc/Kconfig | 4 ++++
> arch/riscv/Kconfig | 3 +++
> arch/s390/Kconfig | 3 +++
> arch/sh/Kconfig | 3 +++
> arch/x86/Kconfig | 3 +++
> kernel/Kconfig.kexec | 2 +-
> 10 files changed, 29 insertions(+), 1 deletion(-)

Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc)

cheers