[Xen-devel] [PATCH v2 2/2] Xen/timer: Process softirq during dumping timer info

[Lan Tianyu <tianyu.lan@xxxxxxxxx>]

Dumping timer info may run for a long time on the huge machine with
a lot of physical cpus. To avoid triggering NMI watchdog, add
process_pending_softirqs() in the loop of dumping timer info.

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Signed-off-by: Lan Tianyu <tianyu.lan@xxxxxxxxx>
---
 xen/common/timer.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/xen/common/timer.c b/xen/common/timer.c
index 29a60a9..ab6bca0 100644
--- a/xen/common/timer.c
+++ b/xen/common/timer.c
@@ -530,6 +530,7 @@ static void dump_timerq(unsigned char key)
     {
         ts = &per_cpu(timers, i);
 
+        process_pending_softirqs();
         printk("CPU%02d:\n", i);
         spin_lock_irqsave(&ts->lock, flags);
         for ( j = 1; j <= GET_HEAP_SIZE(ts->heap); j++ )
-- 
1.7.1


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel