Subject: Re: ~3 hours old git tree: Virtual device lo asks to queue packet!

From: Patrick McHardy <[email-masked]>
Date: Thu, 19 Jul 2007 11:25:40 +0200

Arkadiusz Miskiewicz wrote:
> On Thursday 19 of July 2007, Patrick McHardy wrote:
> 
>>Arkadiusz Miskiewicz wrote:
>>
>>>I'm having problems with networking on recent git kernel.
>>>
>>>kernel logs tons of "Virtual device lo asks to queue packet!"
>>>and networking stops working correctly:
>>>
>>>CONFIG_NETDEVICES_MULTIQUEUE=y
>>
>>Does it go away if you disable this option?
> 
> 
> Yes, it goes away after disabling this.

I don't see a bug in the code itself, maybe the queue_mapping points
to an invalid subqueue. Could you please try this patch and post the
output?

diff --git a/net/core/dev.c b/net/core/dev.c
index 6357f54..f188ffa 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1605,7 +1605,8 @@ gso:
 			HARD_TX_UNLOCK(dev);
 			if (net_ratelimit())
 				printk(KERN_CRIT "Virtual device %s asks to "
-				       "queue packet!\n", dev->name);
+				       "queue packet subqueue %u!\n",
+				       dev->name, skb->queue_mapping);
 		} else {
 			/* Recursion is detected! It is possible,
 			 * unfortunately */