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Resolves: bz 247989

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This commit is contained in:
Neil Horman 2007-07-17 12:53:10 +00:00
parent 7f77e7dcbb
commit bc0be2538f
2 changed files with 66 additions and 1 deletions
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60
kexec-tools-1.101-x86-add_buffer_retry.patch Normal file
View File

@ -0,0 +1,60 @@
--- kexec-tools-1.101/kexec/arch/i386/crashdump-x86.c.orig 2007-07-17 08:33:59.000000000 -0400
+++ kexec-tools-1.101/kexec/arch/i386/crashdump-x86.c 2007-07-17 08:34:13.000000000 -0400
@@ -663,6 +663,7 @@ int load_crashdump_segments(struct kexec
int nr_ranges, align = 1024;
long int nr_cpus = 0;
struct memory_range *mem_range, *memmap_p;
+ int i;
if (get_crash_memory_ranges(&mem_range, &nr_ranges) < 0)
return -1;
@@ -720,8 +721,13 @@ int load_crashdump_segments(struct kexec
* elf core header segment to 16K to avoid being placed in such gaps.
* This is a makeshift solution until it is fixed in kernel.
*/
- elfcorehdr = add_buffer(info, tmp, sz, 16*1024, align, min_base,
- max_addr, -1);
+ for (i=0;i<KEXEC_MAX_SEGMENTS;i++) {
+ if ((memmap_p[i].start == 0) &&
+ (memmap_p[i].end == 0))
+ break;
+ }
+ elfcorehdr = add_buffer(info, tmp, sz, 16*1024, align, min_base,
+ memmap_p[i-1].end, -1);
dfprintf(stdout, "Created elf header segment at 0x%lx\n", elfcorehdr);
if (delete_memmap(memmap_p, elfcorehdr, sz) < 0)
return -1;
--- kexec-tools-1.101/kexec/kexec.c.orig 2007-07-17 08:34:00.000000000 -0400
+++ kexec-tools-1.101/kexec/kexec.c 2007-07-17 08:34:13.000000000 -0400
@@ -327,6 +327,7 @@ unsigned long add_buffer(struct kexec_in
unsigned long base;
int result;
int pagesize;
+ int i;
result = sort_segments(info);
if (result < 0) {
@@ -336,11 +337,22 @@ unsigned long add_buffer(struct kexec_in
/* Round memsz up to a multiple of pagesize */
pagesize = getpagesize();
memsz = (memsz + (pagesize - 1)) & ~(pagesize - 1);
-
+retry:
base = locate_hole(info, memsz, buf_align, buf_min, buf_max, buf_end);
if (base == ULONG_MAX) {
die("locate_hole failed\n");
}
+
+ for (i = 0; i < info->nr_segments; i++) {
+ if ((base < (info->segment[i].mem + info->segment[i].memsz)) &&
+ ((base+memsz) > info->segment[i].mem)) {
+ /*
+ *we have an overlap, bump down buf_max
+ */
+ buf_max = (unsigned long)info->segment[i].mem;
+ goto retry;
+ }
+ }
add_segment(info, buf, bufsz, base, memsz);
return base;

7
kexec-tools.spec
View File

@ -1,6 +1,6 @@
Name: kexec-tools
Version: 1.101
Release: 73%{?dist}
Release: 74%{?dist}
License: GPL
Group: Applications/System
Summary: The kexec/kdump userspace component.
@ -88,6 +88,7 @@ Patch603: kexec-tools-1.101-page_h.patch
Patch604: kexec-tools-1.101-elf-format.patch
Patch605: kexec-tools-1.101-ifdown.patch
Patch606: kexec-tools-1.101-reloc-update.patch
Patch607: kexec-tools-1.101-x86-add_buffer_retry.patch
%description
kexec-tools provides /sbin/kexec binary that facilitates a new
@ -138,6 +139,7 @@ tar -z -x -v -f %{SOURCE9}
%patch604 -p1
%patch605 -p1
%patch606 -p1
%patch607 -p1
tar -z -x -v -f %{SOURCE13}
@ -250,6 +252,9 @@ rm -f %{_datadir}/firstboot/modules/firstboot_kdump.py
%doc kexec-kdump-howto.txt
%changelog
* Mon Jul 17 2007 Neil Horman <nhorman@redhat.com> - 1.101-74%{dist}
- Fix up add_buff to retry locate_hole on segment overlap (bz 247989)
* Mon Jul 09 2007 Neil Horman <nhorman@redhat.com> - 1.101-73%{dist}
- Fix up language files for kexec (bz 246508)