[v13,2/8] x86: kdump: make the lower bound of crash kernel reservation consistent
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Message ID 20201031074437.168008-3-chenzhou10@huawei.com
State New
Headers show
Series
  • support reserving crashkernel above 4G on arm64 kdump
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Commit Message

Chen Zhou Oct. 31, 2020, 7:44 a.m. UTC
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@redhat.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Tested-by: John Donnelly <John.p.donnelly@oracle.com>
---
 arch/x86/kernel/setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index bf373422dc8a..d1599449a001 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -444,7 +444,7 @@  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);
 	if (!low_base) {
 		pr_err("Cannot reserve %ldMB crashkernel low memory, please try smaller size.\n",
 		       (unsigned long)(low_size >> 20));