linux-kernel - RE: [sched] BUG: unable to handle kernel paging request at 093cd001

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Date:	Mon, 12 May 2014 11:52:04 +0200
From:	Vincent Guittot <vincent.guittot@...aro.org>
To:	jet.chen@...el.com
Cc:	mingo@...nel.org, fengguang.wu@...el.com,
	linux-ia64@...r.kernel.org, linux-s390@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Vincent Guittot <vincent.guittot@...aro.org>
Subject: RE: [sched] BUG: unable to handle kernel paging request at 093cd001

Hi,

Does this patch solve your issue ?

A null line is missing at the end of the array for NUMA case.
My test was passed thanks to a null data after the allocated array 

regards,
Vincent
---
 kernel/sched/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 4ea7b3f..941da33 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6232,7 +6232,7 @@ static void sched_init_numa(void)
 	}
 
 	/* Compute default topology size */
-	for (i = 0; sched_domain_topology[i].mask; i++);
+	for (i = 1; sched_domain_topology[i].mask; i++);
 
 	tl = kzalloc((i + level) *
 			sizeof(struct sched_domain_topology_level), GFP_KERNEL);
-- 
1.9.1

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