Another possibility might be:
commit 11aad99af6ef629ff3b05d1c9f0936589b204316
Author: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed Feb 15 20:43:11 2012 +0000
atl1c: dont use highprio tx queue
But so far as I can see that's only going to have an effect if some
application is using SO_MARK.
Ben.
--
Ben Hutchings
Horngren's Observation:
Among economists, the real world is often a special case.
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 15 Feb 2012 20:43:11 +0000
Subject: [PATCH] atl1c: dont use highprio tx queue
commit 11aad99af6ef629ff3b05d1c9f0936589b204316 upstream.
This driver attempts to use two TX rings but lacks proper support :
1) IRQ handler only takes care of TX completion on first TX ring
2) the stop/start logic uses the legacy functions (for non multiqueue
drivers)
This means all packets witk skb mark set to 1 are sent through high
queue but are never cleaned and queue eventualy fills and block the
device, triggering the infamous "NETDEV WATCHDOG" message.
Lets use a single TX ring to fix the problem, this driver is not a real
multiqueue one yet.
Minimal fix for stable kernels.
Reported-by: Thomas Meyer <thomas@m3y3r.de>
Tested-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Jay Cliburn <jcliburn@gmail.com>
Cc: Chris Snook <chris.snook@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Adjust filename]
---
--- a/drivers/net/atl1c/atl1c_main.c
+++ b/drivers/net/atl1c/atl1c_main.c
@@ -2244,10 +2244,6 @@ static netdev_tx_t atl1c_xmit_frame(struct sk_buff *skb,
dev_info(&adapter->pdev->dev, "tx locked\n");
return NETDEV_TX_LOCKED;
}
- if (skb->mark == 0x01)
- type = atl1c_trans_high;
- else
- type = atl1c_trans_normal;
if (atl1c_tpd_avail(adapter, type) < tpd_req) {
/* no enough descriptor, just stop queue */
Attachment:
signature.asc
Description: This is a digitally signed message part