WARN with 3c905 boomerang NIC

From: Doug Nazar
Date: Sun Aug 22 2010 - 02:35:43 EST


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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