Attachment 299065 Details for Bug 434927 – revised patch to restrict location of elfcorehdr to crash dump memory region

[patch] revised patch to restrict location of elfcorehdr to crash dump memory region

kexec.patch (text/plain), 1.07 KB, created by Neil Horman on 2008-03-25 20:12:53 UTC

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Creator: Neil Horman

Created: 2008-03-25 20:12:53 UTC

Size: 1.07 KB

patch

obsolete

>--- kexec-tools-testing-20070330/kexec/arch/ia64/crashdump-ia64.c.orig	2007-03-30 00:34:36.000000000 -0400
>+++ kexec-tools-testing-20070330/kexec/arch/ia64/crashdump-ia64.c	2008-03-25 15:57:45.000000000 -0400
>@@ -218,6 +218,7 @@
> 	struct memory_range *mem_range;
> 	int nr_ranges;
> 	unsigned long sz;
>+	unsigned long hole_base;
> 	size_t size;
> 	void *tmp;
> 	if (info->kexec_flags & KEXEC_ON_CRASH ) {
>@@ -230,12 +231,14 @@
> 						       crash_memory_range,
> 						       nr_ranges,
> 						       &tmp, &sz,
>-						       EFI_PAGE_SIZE) < 0)
>+						       ELF_CORE_HEADER_ALIGN) < 0)
> 				return -1;
>-
>+			hole_base = locate_hole(info, (sz + EFI_PAGE_SIZE), 
>+						EFI_PAGE_SIZE, crash_memory_range[0].start, crash_memory_range[nr_ranges-1].end, -1);
>+			/* be conservative and find a hole that has 4k left at the end */  
> 			elfcorehdr = add_buffer(info, tmp, sz, sz,
> 						EFI_PAGE_SIZE, min_base,
>-						max_addr, -1);
>+						hole_base+sz+EFI_PAGE_SIZE, -1);
> 			loaded_segments[loaded_segments_num].start = elfcorehdr;
> 			loaded_segments[loaded_segments_num].end = elfcorehdr +
> 								   sz;

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