Thread (25 messages) 25 messages, 6 authors, 2021-12-13
STALE1633d REVIEWED: 1 (0M)
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[PATCH v16 02/11] x86: kdump: make the lower bound of crash kernel reservation consistent

From: Zhen Lei <hidden>
Date: 2021-11-23 12:49:35
Also in: kexec, linux-arm-kernel, linux-devicetree, lkml
Subsystem: the rest, x86 architecture (32-bit and 64-bit) · Maintainers: Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen

From: Chen Zhou <redacted>

The lower bounds of crash kernel reservation and crash kernel low
reservation are different, use the consistent value CRASH_ALIGN.

Suggested-by: Dave Young <redacted>
Signed-off-by: Chen Zhou <redacted>
Tested-by: John Donnelly <redacted>
---
 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 b7286d4c389dd33..a31352d8c404f6c 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -441,7 +441,8 @@ 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);
 	if (!low_base) {
 		pr_err("Cannot reserve %ldMB crashkernel low memory, please try smaller size.\n",
 		       (unsigned long)(low_size >> 20));
-- 
2.25.1
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