Re: [PATCH] add additional symbols to /sys/kernel/vmcoreinfo datafor ppc(64)

From: Neil Horman
Date: Sun Oct 19 2008 - 20:34:41 EST


Hey Vivek, as promised, a corrected patch

The makdumpdile dump filtering program, in some modes of operation needs
the node_data and/or contig_page_data symbols to function properly. These
symbols are missing from the powerpc kernel. This patch adds those symbols in
properly. Tested successfully by myself and the reporter.

Regards
Neil

Signed-off-by: Neil Horman <nhorman@xxxxxxxxxxxxx>


machine_kexec.c | 8 ++++++++
1 file changed, 8 insertions(+)


diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index aab7688..5d51e75 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -44,6 +44,14 @@ void machine_kexec_cleanup(struct kimage *image)
ppc_md.machine_kexec_cleanup(image);
}

+void arch_crash_save_vmcoreinfo(void)
+{
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+ VMCOREINFO_SYMBOL(node_data);
+ VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
+#endif
+}
+
/*
* Do not allocate memory (or fail in any way) in machine_kexec().
* We are past the point of no return, committed to rebooting now.
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