From 0f7d83e85dbd5bb8032ebed7713edf59670fb074 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Mon, 21 Jul 2014 12:27:02 +0200 Subject: PM / Hibernate: Touch Soft Lockup Watchdog in rtree_next_node When a memory bitmap is fully populated on a large memory machine (several TB of RAM) it can take more than a minute to walk through all bits. This causes the soft lockup detector on these machine to report warnings. Avoid this by touching the soft lockup watchdog in the memory bitmap walking code. Signed-off-by: Joerg Roedel Signed-off-by: Rafael J. Wysocki --- kernel/power/snapshot.c | 1 + 1 file changed, 1 insertion(+) (limited to 'kernel/power/snapshot.c') diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index ab1998adb0a9..4fc5c32422b3 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c @@ -769,6 +769,7 @@ static bool rtree_next_node(struct memory_bitmap *bm) if (&bm->cur.node->list != &bm->cur.zone->leaves) { bm->cur.node_pfn += BM_BITS_PER_BLOCK; bm->cur.node_bit = 0; + touch_softlockup_watchdog(); return true; } -- cgit