From: Andi Kleen <[EMAIL PROTECTED]>
Date: Sat, 21 Jul 2007 09:49:22 +0200
> Since -git15 (probably David's merge) I see a lot of
>
> Virtual device lo asks to queue packet!
> Virtual device lo asks to queue packet!
> Virtual device lo asks to queue packet!
> Virtual device lo asks to queue packet!
> Virtual device lo asks to queue packet!
> Virtual device lo asks to queue packet!
>
> during a LTP run on a nfsroot system
Yes I have a fix pending in my tree for this.
commit 31ce72a6b1c7635259cf522459539c0611f2c50c
Author: Patrick McHardy <[EMAIL PROTECTED]>
Date: Fri Jul 20 19:45:45 2007 -0700
[NET]: Fix loopback crashes when multiqueue is enabled.
From: Patrick McHardy <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9820ca1..4a616d7 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -575,7 +575,7 @@ struct net_device
/* The TX queue control structures */
unsigned int egress_subqueue_count;
- struct net_device_subqueue egress_subqueue[0];
+ struct net_device_subqueue egress_subqueue[1];
};
#define to_net_dev(d) container_of(d, struct net_device, dev)
diff --git a/net/core/dev.c b/net/core/dev.c
index 38212c3..ee40355 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3624,7 +3624,7 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const
char *name,
/* ensure 32-byte alignment of both the device and private area */
alloc_size = (sizeof(*dev) + NETDEV_ALIGN_CONST +
- (sizeof(struct net_device_subqueue) * queue_count)) &
+ (sizeof(struct net_device_subqueue) * (queue_count - 1))) &
~NETDEV_ALIGN_CONST;
alloc_size += sizeof_priv + NETDEV_ALIGN_CONST;
@@ -3642,7 +3642,7 @@ struct net_device *alloc_netdev_mq(int sizeof_priv, const
char *name,
dev->priv = ((char *)dev +
((sizeof(struct net_device) +
(sizeof(struct net_device_subqueue) *
- queue_count) + NETDEV_ALIGN_CONST)
+ (queue_count - 1)) + NETDEV_ALIGN_CONST)
& ~NETDEV_ALIGN_CONST));
}
-
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