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Commit 7d41a8a4 authored by Yinghai Lu's avatar Yinghai Lu Committed by H. Peter Anvin
Browse files

x86, kdump: Remove crashkernel range find limit for 64bit 



Now kexeced kernel/ramdisk could be above 4g, so remove 896 limit for
64bit.

Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1359058816-7615-30-git-send-email-yinghai@kernel.org


Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
parent 595ad9af

arch/x86/kernel/setup.c

+1 −3
Original line number Original line Diff line number Diff line
@@ -501,13 +501,11 @@ static void __init memblock_x86_reserve_range_setup_data(void) 
/*

/*

 * Keep the crash kernel below this limit.  On 32 bits earlier kernels

 * Keep the crash kernel below this limit.  On 32 bits earlier kernels

 * would limit the kernel to the low 512 MiB due to mapping restrictions.

 * would limit the kernel to the low 512 MiB due to mapping restrictions.

 * On 64 bits, kexec-tools currently limits us to 896 MiB; increase this

 * limit once kexec-tools are fixed.

 */

 */

#ifdef CONFIG_X86_32

#ifdef CONFIG_X86_32

# define CRASH_KERNEL_ADDR_MAX	(512 << 20)

# define CRASH_KERNEL_ADDR_MAX	(512 << 20)

#else

#else

# define CRASH_KERNEL_ADDR_MAX	(896 << 20)

# define CRASH_KERNEL_ADDR_MAX	MAXMEM

#endif

#endif





static void __init reserve_crashkernel(void)

static void __init reserve_crashkernel(void)