The patch titled
softlockup debug
has been added to the -mm tree. Its filename is
softlockup-debug.patch
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------------------------------------------------------
Subject: softlockup debug
From: "Dmitry Adamushko" <dmitry.adamushko@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/softlockup.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN kernel/softlockup.c~softlockup-debug kernel/softlockup.c
--- a/kernel/softlockup.c~softlockup-debug
+++ a/kernel/softlockup.c
@@ -236,6 +236,7 @@ static int watchdog(void *__bind_cpu)
check_hung_uninterruptible_tasks(this_cpu);
}
+ printk(KERN_ERR "watchdog(cpu: %d) -- exit\n", this_cpu);
return 0;
}
@@ -289,6 +290,7 @@ cpu_callback(struct notifier_block *nfb,
case CPU_DEAD_FROZEN:
p = per_cpu(watchdog_task, hotcpu);
per_cpu(watchdog_task, hotcpu) = NULL;
+ printk(KERN_ERR "kthread_stop(watchdog on cpu: %d)\n", hotcpu);
kthread_stop(p);
break;
#endif /* CONFIG_HOTPLUG_CPU */
_
Patches currently in -mm which might be from dmitry.adamushko@xxxxxxxxx are
origin.patch
softlockup-debug.patch
-
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