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From 1ac3e4a570005707260ea3e74ac011bd926b168b Mon Sep 17 00:00:00 2001
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From: Lianbo Jiang <lijiang@redhat.com>
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Date: Thu, 6 Sep 2018 13:56:18 +0800
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Subject: [PATCH] kdump: fix an error that can not parse the e820 reserved
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region
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When kexec-tools load the kernel and initramfs for kdump, kexec-tools will
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read /proc/iomem and recreate the e820 ranges for kdump kernel. But it fails
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to parse the e820 reserved region, because the memcmp() is case sensitive
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when comparing the string. In fact, it may be "Reserved" or "reserved" in
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the /proc/iomem, so we have to fix these cases.
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Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
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Reviewed-by: Dave Young <dyoung@redhat.com>
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Signed-off-by: Simon Horman <horms@verge.net.au>
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---
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kexec/arch/i386/crashdump-x86.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/kexec/arch/i386/crashdump-x86.c b/kexec/arch/i386/crashdump-x86.c
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index 437e8a8..140f45b 100644
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--- a/kexec/arch/i386/crashdump-x86.c
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+++ b/kexec/arch/i386/crashdump-x86.c
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@@ -289,6 +289,8 @@ static int get_crash_memory_ranges(struct memory_range **range, int *ranges,
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type = RANGE_PMEM;
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} else if(memcmp(str,"reserved\n",9) == 0 ) {
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type = RANGE_RESERVED;
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+ } else if (memcmp(str, "Reserved\n", 9) == 0) {
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+ type = RANGE_RESERVED;
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} else if (memcmp(str, "GART\n", 5) == 0) {
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gart_start = start;
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gart_end = end;
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--
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2.17.1
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