This is a note to let you know that I've just added the patch titled
powerpc/kdump64: Don't reference freed memory as pacas
to the 2.6.39-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-kdump64-don-t-reference-freed-memory-as-pacas.patch
and it can be found in the queue-2.6.39 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From bd9e5eefecb3d69018bb95796298019d309cbec8 Mon Sep 17 00:00:00 2001
From: Milton Miller <[email protected]>
Date: Tue, 10 May 2011 19:28:41 +0000
Subject: powerpc/kdump64: Don't reference freed memory as pacas
From: Milton Miller <[email protected]>
commit bd9e5eefecb3d69018bb95796298019d309cbec8 upstream.
Starting with 1426d5a3bd07589534286375998c0c8c6fdc5260 (powerpc:
Dynamically allocate pacas) the space for pacas beyond cpu_possible
is freed, but we failed to update the loop in crash.c.
Since c1854e00727f50f7ac99e98d26ece04c087ef785 (powerpc: Set nr_cpu_ids
early and use it to free PACAs) the number of pacas allocated is
always nr_cpu_ids.
Signed-off-by: Milton Miller <[email protected]>
Signed-off-by: Benjamin Herrenschmidt <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/powerpc/kernel/crash.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -170,7 +170,7 @@ static void crash_kexec_wait_realmode(in
int i;
msecs = 10000;
- for (i=0; i < NR_CPUS && msecs > 0; i++) {
+ for (i=0; i < nr_cpu_ids && msecs > 0; i++) {
if (i == cpu)
continue;
Patches currently in stable-queue which might be from [email protected] are
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