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SubjectRe: 2.6.23 WARNING: at kernel/softirq.c:139 local_bh_enable()
Simon, can you test this patch? I think it's the most straightforward
2.6.24 fix.

diff -r c60016ba6237 net/core/netpoll.c
--- a/net/core/netpoll.c Tue Nov 13 09:09:36 2007 -0800
+++ b/net/core/netpoll.c Fri Nov 23 13:10:28 2007 -0600
@@ -203,6 +203,12 @@ static void refill_skbs(void)
spin_unlock_irqrestore(&skb_pool.lock, flags);
}

+/* used to mark an skb as owned by netpoll */
+static void netpoll_skb_destroy(struct sk_buff *skb)
+{
+ return;
+}
+
static void zap_completion_queue(void)
{
unsigned long flags;
@@ -219,10 +225,12 @@ static void zap_completion_queue(void)
while (clist != NULL) {
struct sk_buff *skb = clist;
clist = clist->next;
- if (skb->destructor)
+ if (skb->destructor == netpoll_skb_destroy) {
+ skb->destructor = NULL;
+ __kfree_skb(skb);
+ }
+ else
dev_kfree_skb_any(skb); /* put this one back */
- else
- __kfree_skb(skb);
}
}

@@ -252,6 +260,7 @@ repeat:

atomic_set(&skb->users, 1);
skb_reserve(skb, reserve);
+ skb->destructor = netpoll_skb_destroy;
return skb;
}

--
Mathematics is the supreme nostalgia of our time.
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