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authorKen'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>2008-10-18 20:28:30 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 08:52:40 -0700
commitacd99dbf54020f5c80b9aa2f2ea86f43cb285b02 (patch)
tree72af6a9e55be18f4fcbe4f17f8b0fe2d3c4af5ab /kernel
parentd9a9855d0b06ca6d6cc92596fedcc03f8512e062 (diff)
downloadlinux-linaro-acd99dbf54020f5c80b9aa2f2ea86f43cb285b02.tar.gz
kdump: add vmlist.addr to vmcoreinfo for x86 vmalloc translation.
Add the symbols 'vmlist' and offset 'vm_struct.addr' to the vmcoreinfo[1] data for i386 vmalloc translation. makedumpfile[2] needs VMALLOC_START value for distinguishing a vmalloc address or not, because it should choose suitable translation method. If applying this patch, makedumpfile will be able to take VMALLOC_START value from 'vmlist.addr'. vmcoreinfo[1]: The vmcoreinfo data has the minimum debugging information only for dump filtering. makedumpfile[2] uses it to distinguish unnecessary pages and creates a small dumpfile. makedumpfile[2]: dump filtering command https://sourceforge.net/projects/makedumpfile/ Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/kexec.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c
index aef265325cd..777ac458ac9 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1371,6 +1371,7 @@ static int __init crash_save_vmcoreinfo_init(void)
VMCOREINFO_SYMBOL(node_online_map);
VMCOREINFO_SYMBOL(swapper_pg_dir);
VMCOREINFO_SYMBOL(_stext);
+ VMCOREINFO_SYMBOL(vmlist);
#ifndef CONFIG_NEED_MULTIPLE_NODES
VMCOREINFO_SYMBOL(mem_map);
@@ -1406,6 +1407,7 @@ static int __init crash_save_vmcoreinfo_init(void)
VMCOREINFO_OFFSET(free_area, free_list);
VMCOREINFO_OFFSET(list_head, next);
VMCOREINFO_OFFSET(list_head, prev);
+ VMCOREINFO_OFFSET(vm_struct, addr);
VMCOREINFO_LENGTH(zone.free_area, MAX_ORDER);
VMCOREINFO_LENGTH(free_area.free_list, MIGRATE_TYPES);
VMCOREINFO_NUMBER(NR_FREE_PAGES);