From: Justin Pettit <jpettit@nicira.com>
Date: Wed, 3 Mar 2010 20:48:15 +0000 (-0800)
Subject: brcompat: Print warning when kernel times out waiting for userspace
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca063bcd599bd00c4096628991529c16eb24d1b6;p=openvswitch

brcompat: Print warning when kernel times out waiting for userspace
---

diff --git a/datapath/brcompat.c b/datapath/brcompat.c
index 92fcecc2..b7fb6f87 100644
--- a/datapath/brcompat.c
+++ b/datapath/brcompat.c
@@ -485,8 +485,10 @@ static struct sk_buff *brc_send_command(struct sk_buff *request, struct nlattr *
 
 	/* Wait for reply. */
 	error = -ETIMEDOUT;
-	if (!wait_for_completion_timeout(&brc_done, BRC_TIMEOUT))
+	if (!wait_for_completion_timeout(&brc_done, BRC_TIMEOUT)) {
+		printk(KERN_WARNING "brcompat: timed out waiting for userspace\n");
 		goto error;
+    }
 
 	/* Grab reply. */
 	spin_lock_irqsave(&brc_lock, flags);