Re: [PATCH] x86_64: reserve crashkernel bootmem before reserve dma32 bootmem

[Joe Jin <joe.jin@oracle.com>]

Yinghai, thanks!


On 2008-07-14 10:16, Yinghai Lu wrote:
> From: Joe Jin <joe.jin@oracle.com>
> 
> Before reserve_crashkernel, dma32_reserve_bootmem would reserve 128M memory.
> this cuased crashkernel end address must less than 64M or start address must
> more than 192M except crashkernel memory reserved before dma32 memory reserved.
> 
> Signed-off-by: Joe Jin <joe.jin@oracle.com>
> Acked-by: Yinghai Lu <yhlu.kernel@gmail.com>
> Acked-by: Ingo Molnar <mingo@elte.hu>
> 
> 
> ---
>  arch/x86/kernel/setup_64.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> Index: linux-2.6/arch/x86/kernel/setup_64.c
> ===================================================================
> --- linux-2.6.orig/arch/x86/kernel/setup_64.c
> +++ linux-2.6/arch/x86/kernel/setup_64.c
> @@ -444,8 +444,6 @@ void __init setup_arch(char **cmdline_p)
>  	contig_initmem_init(0, end_pfn);
>  #endif
>  
> -	dma32_reserve_bootmem();
> -
>  #ifdef CONFIG_ACPI_SLEEP
>  	/*
>  	 * Reserve low memory region for sleep support.
> @@ -486,6 +484,8 @@ void __init setup_arch(char **cmdline_p)
>  #endif
>  	reserve_crashkernel();
>  
> +	dma32_reserve_bootmem();
> +
>  	reserve_ibft_region();
>  
>  	paging_init();