Re: [PATCH v2-RESEND] arm64/kexec: Fix missing extra range for crashkres_low.

From: Catalin Marinas
Date: Wed Aug 31 2022 - 06:26:57 EST


On Wed, Aug 31, 2022 at 10:49:30AM +0900, Yun Levi wrote:
> Like crashk_res, Calling crash_exclude_mem_range function with
> crashk_low_res area would need extra crash_mem range too.
>
> Add one more extra cmem slot in case of crashk_low_res is used.
>
> Signed-off-by: Levi Yun <ppbuk5246@xxxxxxxxx>
> Fixes: 944a45abfabc ("arm64: kdump: Reimplement crashkernel=X")
> Cc: stable@xxxxxxxxxxxxxxx

To be even more precise, it should be:

Cc: <stable@xxxxxxxxxxxxxxx> # 5.19.x

> Acked-by: Baoquan He <bhe@xxxxxxxxxx>
> Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> ---
> arch/arm64/kernel/machine_kexec_file.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/kernel/machine_kexec_file.c
> b/arch/arm64/kernel/machine_kexec_file.c
> index 889951291cc0..a11a6e14ba89 100644
> --- a/arch/arm64/kernel/machine_kexec_file.c
> +++ b/arch/arm64/kernel/machine_kexec_file.c
> @@ -47,7 +47,7 @@ static int prepare_elf_headers(void **addr, unsigned long *sz)
> u64 i;
> phys_addr_t start, end;
>
> - nr_ranges = 1; /* for exclusion of crashkernel region */
> + nr_ranges = 2; /* for exclusion of crashkernel region */
> for_each_mem_range(i, &start, &end)
> nr_ranges++;

Something happened to the whitespace here, so the patch can't be
applied.

--
Catalin