Re: [PATCH v14 02/11] x86: kdump: make the lower bound of crash kernel reservation consistent

[Baoquan He]

On 01/30/21 at 03:10pm, Chen Zhou wrote:
> The lower bounds of crash kernel reservation and crash kernel low
> reservation are different, use the consistent value CRASH_ALIGN.
> 
> Suggested-by: Dave Young <dyoung@xxxxxxxxxx>
> Signed-off-by: Chen Zhou <chenzhou10@xxxxxxxxxx>
> Tested-by: John Donnelly <John.p.donnelly@xxxxxxxxxx>
> ---
>  arch/x86/kernel/setup.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
> index da769845597d..27470479e4a3 100644
> --- a/arch/x86/kernel/setup.c
> +++ b/arch/x86/kernel/setup.c
> @@ -439,7 +439,8 @@ static int __init reserve_crashkernel_low(void)
>  			return 0;
>  	}
>  
> -	low_base = memblock_phys_alloc_range(low_size, CRASH_ALIGN, 0, CRASH_ADDR_LOW_MAX);
> +	low_base = memblock_phys_alloc_range(low_size, CRASH_ALIGN, CRASH_ALIGN,
> +			CRASH_ADDR_LOW_MAX);

Acked-by: Baoquan He <bhe@xxxxxxxxxx>

>  	if (!low_base) {
>  		pr_err("Cannot reserve %ldMB crashkernel low memory, please try smaller size.\n",
>  		       (unsigned long)(low_size >> 20));
> -- 
> 2.20.1
>