From: Steven Rostedt Reverting the rcu swait patches fixed the boot problem. Then when I was looking at the revert itself, this stood out like a sore thumb. static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp) { - swait_wake(&rnp->nocb_gp_wq[rnp->completed & 0x1]); + wake_up_all(&rnp->nocb_gp_wq[rnp->completed & 0x1]); } See the problem there? Reviewed-by: Paul E. McKenney Signed-off-by: Steven Rostedt --- kernel/rcutree_plugin.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h index 684b762..dc0c4b2 100644 --- a/kernel/rcutree_plugin.h +++ b/kernel/rcutree_plugin.h @@ -2036,7 +2036,7 @@ static int rcu_nocb_needs_gp(struct rcu_state *rsp) */ static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp) { - swait_wake(&rnp->nocb_gp_wq[rnp->completed & 0x1]); + swait_wake_all(&rnp->nocb_gp_wq[rnp->completed & 0x1]); } /* -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/