netdev - WARN with 3c905 boomerang NIC

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Date:	Sun, 22 Aug 2010 02:35:02 -0400
From:	Doug Nazar <nazard.lkml@...il.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org
Subject: WARN with 3c905 boomerang NIC

  Since de85d99eb7b595f6751550184b94c1e2f74a828b (netpoll: Fix RCU 
usage) I've been getting the follow warning:

Aug 20 22:33:26 dryad kernel: [   64.263065] ------------[ cut here 
]------------
Aug 20 22:33:26 dryad kernel: [   64.263089] WARNING: at 
/usr/src/linux/kernel/softirq.c:143 local_bh_enable+0x58/0x82()
Aug 20 22:33:26 dryad kernel: [   64.263095] Hardware name: OptiPlex GX240
Aug 20 22:33:26 dryad kernel: [   64.263099] Modules linked in: 
rpcsec_gss_krb5 softdog snd_intel8x0 snd_ac97_codec 8250_pnp ac97_bu
Aug 20 22:33:26 dryad kernel: [   64.263234] Pid: 5892, comm: 
runscript.sh Not tainted 2.6.36-rc1-00133-g47ade1d #43
Aug 20 22:33:26 dryad kernel: [   64.263238] Call Trace:
Aug 20 22:33:26 dryad kernel: [   64.263251]  [<c12a492e>] ? 
printk+0x18/0x1a
Aug 20 22:33:26 dryad kernel: [   64.263263]  [<c102a015>] 
warn_slowpath_common+0x67/0x8e
Aug 20 22:33:26 dryad kernel: [   64.263271]  [<c102ee76>] ? 
local_bh_enable+0x58/0x82
Aug 20 22:33:26 dryad kernel: [   64.263277]  [<c102ee76>] ? 
local_bh_enable+0x58/0x82
Aug 20 22:33:26 dryad kernel: [   64.263285]  [<c102a059>] 
warn_slowpath_null+0x1d/0x1f
Aug 20 22:33:26 dryad kernel: [   64.263292]  [<c102ee76>] 
local_bh_enable+0x58/0x82
Aug 20 22:33:26 dryad kernel: [   64.263301]  [<c12399e5>] 
netif_rx+0x14f/0x172
Aug 20 22:33:26 dryad kernel: [   64.263315]  [<e20e8f0f>] 
boomerang_rx+0x27a/0x42f [3c59x]
Aug 20 22:33:26 dryad kernel: [   64.263328]  [<c10a369b>] ? 
path_put+0x20/0x23
Aug 20 22:33:26 dryad kernel: [   64.263342]  [<e20eadfb>] 
boomerang_interrupt+0xd9/0x2b7 [3c59x]
Aug 20 22:33:26 dryad kernel: [   64.263361]  [<c105651c>] 
handle_IRQ_event+0x3e/0x13e
Aug 20 22:33:26 dryad kernel: [   64.263369]  [<c1057c6e>] 
handle_fasteoi_irq+0x3c/0x89
Aug 20 22:33:26 dryad kernel: [   64.263378]  [<c1004e58>] 
handle_irq+0x18/0x30
Aug 20 22:33:26 dryad kernel: [   64.263385]  [<c10048cb>] do_IRQ+0x34/0x97
Aug 20 22:33:26 dryad kernel: [   64.263392]  [<c10037a9>] 
common_interrupt+0x29/0x30
Aug 20 22:33:26 dryad kernel: [   64.263398] ---[ end trace 
511646352388ce9c ]---

The card is an:
02:0c.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] 
(rev 78)

Doug

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