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authorKen'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>2007-10-16 23:27:27 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-17 08:42:54 -0700
commitfd59d231f81cb02870b9cf15f456a897f3669b4e (patch)
tree5713c13bd678774f1ba3c42bfff5008c1812deae /include/asm-ia64
parent0e647c04f665e9b3451a1ebe8252b38ffe0207c8 (diff)
Add vmcoreinfo
This patch set frees the restriction that makedumpfile users should install a vmlinux file (including the debugging information) into each system. makedumpfile command is the dump filtering feature for kdump. It creates a small dumpfile by filtering unnecessary pages for the analysis. To distinguish unnecessary pages, it needs a vmlinux file including the debugging information. These days, the debugging package becomes a huge file, and it is hard to install it into each system. To solve the problem, kdump developers discussed it at lkml and kexec-ml. As the result, we reached the conclusion that necessary information for dump filtering (called "vmcoreinfo") should be embedded into the first kernel file and it should be accessed through /proc/vmcore during the second kernel. (http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.0/1806.html) Dan Aloni created the patch set for the above implementation. (http://www.uwsg.iu.edu/hypermail/linux/kernel/0707.1/1053.html) And I updated it for multi architectures and memory models. (http://lists.infradead.org/pipermail/kexec/2007-August/000479.html) Signed-off-by: Dan Aloni <da-x@monatomic.org> Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Signed-off-by: Bernhard Walle <bwalle@suse.de> Signed-off-by: Daisuke Nishimura <nishimura@mxp.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 'include/asm-ia64')
-rw-r--r--include/asm-ia64/numa.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-ia64/numa.h b/include/asm-ia64/numa.h
index 7d5e2ccc37a0..6a8a27cfae3e 100644
--- a/include/asm-ia64/numa.h
+++ b/include/asm-ia64/numa.h
@@ -24,6 +24,7 @@
extern u16 cpu_to_node_map[NR_CPUS] __cacheline_aligned;
extern cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned;
+extern pg_data_t *pgdat_list[MAX_NUMNODES];
/* Stuff below this line could be architecture independent */