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ocfs2: Replace panic() with emergency_restart() when fencing 

We have noticed panic() hanging leading us to a situation in which
the node, while otherwise dead, is still disk heartbeating. This
leads to a hung cluster as the other nodes are waiting for this
node to stop disk heartbeating. This situation is only resolved
by power resetting the box.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Sunil Mushran 2007-04-17 13:53:38 -07:00 committed by Mark Fasheh
parent 5d262cc7dd
commit bebe6f120b
1 changed files with 4 additions and 1 deletions
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5
fs/ocfs2/cluster/quorum.c
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@ -46,6 +46,7 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/reboot.h>
#include "heartbeat.h"
#include "nodemanager.h"
@ -72,7 +73,9 @@ static void o2quo_fence_self(void)
/* panic spins with interrupts enabled. with preempt
* threads can still schedule, etc, etc */
o2hb_stop_all_regions();
panic("ocfs2 is very sorry to be fencing this system by panicing\n");
printk("ocfs2 is very sorry to be fencing this system by restarting\n");
emergency_restart();
}
/* Indicate that a timeout occured on a hearbeat region write. The