Commit:     d3938204468dccae16be0099a2abf53db4ed0505
Parent:     a531a141089714efe39eca89593524fdf05104f2
Author:     Thomas Gleixner <[EMAIL PROTECTED]>
AuthorDate: Wed Nov 28 15:52:56 2007 +0100
Committer:  Ingo Molnar <[EMAIL PROTECTED]>
CommitDate: Wed Nov 28 15:52:56 2007 +0100

    softlockup: fix false positives on CONFIG_NOHZ
    David Miller reported soft lockup false-positives that trigger
    on NOHZ due to CPUs idling for more than 10 seconds.
    The solution is touch the softlockup watchdog when we return from
    idle. (by definition we are not 'locked up' when we were idle)

    Reported-by: David Miller <[EMAIL PROTECTED]>
    Signed-off-by: Thomas Gleixner <[EMAIL PROTECTED]>
    Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
 kernel/time/tick-sched.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 27a2338..cb89fa8 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -133,6 +133,8 @@ void tick_nohz_update_jiffies(void)
        if (!ts->tick_stopped)
+       touch_softlockup_watchdog();
        cpu_clear(cpu, nohz_cpu_mask);
        now = ktime_get();
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