Comment 4 for bug 545334

Ai, happened again. fifth time now.
cat /var/log/kern.log | grep "Oct 7 23:19:24 hpserver":
Oct 7 23:19:24 hpserver kernel: [ 6371.040019] ------------[ cut here ]------------
Oct 7 23:19:24 hpserver kernel: [ 6371.040038] WARNING: at /build/buildd/linux-2.6.32/net/sched/sch_generic.c:261 dev_watchdog+0x262/0x270()
Oct 7 23:19:24 hpserver kernel: [ 6371.040044] Hardware name: HP dx5150 MT(EC923ET)
Oct 7 23:19:24 hpserver kernel: [ 6371.040048] NETDEV WATCHDOG: eth0 (tg3): transmit queue 0 timed out
Oct 7 23:19:24 hpserver kernel: [ 6371.040052] Modules linked in: xt_mac xt_MARK xt_mark nf_conntrack_ipv4 nf_defrag_ipv4 xt_CONNMARK nf_conntrack iptable_mangle ip_tables x_tables 8021q garp stp quota_v2 quota_tree fbcon tileblit font bitblit softcursor vga16fb vgastate radeon snd_atiixp ttm snd_ac97_codec drm_kms_helper ac97_bus drm snd_pcm i2c_algo_bit snd_timer psmouse ppdev snd i2c_piix4 lp shpchp parport_pc serio_raw edac_core soundcore parport edac_mce_amd snd_page_alloc k8temp raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq async_tx raid1 raid0 pata_atiixp tg3 sata_sil floppy multipath linear
Oct 7 23:19:24 hpserver kernel: [ 6371.040143] Pid: 0, comm: swapper Not tainted 2.6.32-25-server #44-Ubuntu
Oct 7 23:19:24 hpserver kernel: [ 6371.040147] Call Trace:
Oct 7 23:19:24 hpserver kernel: [ 6371.040152] <IRQ> [<ffffffff81065f4b>] warn_slowpath_common+0x7b/0xc0
Oct 7 23:19:24 hpserver kernel: [ 6371.040169] [<ffffffff81065ff1>] warn_slowpath_fmt+0x41/0x50
Oct 7 23:19:24 hpserver kernel: [ 6371.040177] [<ffffffff8148c452>] dev_watchdog+0x262/0x270
Oct 7 23:19:24 hpserver kernel: [ 6371.040186] [<ffffffff81019103>] ? native_sched_clock+0x13/0x60
Oct 7 23:19:24 hpserver kernel: [ 6371.040194] [<ffffffff8108a235>] ? sched_clock_local+0x25/0x90
Oct 7 23:19:24 hpserver kernel: [ 6371.040202] [<ffffffff8148c1f0>] ? dev_watchdog+0x0/0x270
Oct 7 23:19:24 hpserver kernel: [ 6371.040209] [<ffffffff8107668b>] run_timer_softirq+0x19b/0x340
Oct 7 23:19:24 hpserver kernel: [ 6371.040218] [<ffffffff810938f0>] ? tick_sched_timer+0x0/0xc0
Oct 7 23:19:24 hpserver kernel: [ 6371.040225] [<ffffffff8108e553>] ? ktime_get+0x63/0xe0
Oct 7 23:19:24 hpserver kernel: [ 6371.040233] [<ffffffff8106d487>] __do_softirq+0xb7/0x1e0
Oct 7 23:19:24 hpserver kernel: [ 6371.040240] [<ffffffff810934da>] ? tick_program_event+0x2a/0x30
Oct 7 23:19:24 hpserver kernel: [ 6371.040247] [<ffffffff810132ec>] call_softirq+0x1c/0x30
Oct 7 23:19:24 hpserver kernel: [ 6371.040254] [<ffffffff81014cb5>] do_softirq+0x65/0xa0
Oct 7 23:19:24 hpserver kernel: [ 6371.040260] [<ffffffff8106d325>] irq_exit+0x85/0x90
Oct 7 23:19:24 hpserver kernel: [ 6371.040268] [<ffffffff8155f321>] smp_apic_timer_interrupt+0x71/0x9c
Oct 7 23:19:24 hpserver kernel: [ 6371.040275] [<ffffffff81012cb3>] apic_timer_interrupt+0x13/0x20
Oct 7 23:19:24 hpserver kernel: [ 6371.040279] <EOI> [<ffffffff81037adb>] ? native_safe_halt+0xb/0x10
Oct 7 23:19:24 hpserver kernel: [ 6371.040293] [<ffffffff8101a6ad>] ? default_idle+0x3d/0x90
Oct 7 23:19:24 hpserver kernel: [ 6371.040301] [<ffffffff81010e63>] ? cpu_idle+0xb3/0x110
Oct 7 23:19:24 hpserver kernel: [ 6371.040308] [<ffffffff81541c1b>] ? rest_init+0x6b/0x80
Oct 7 23:19:24 hpserver kernel: [ 6371.040317] [<ffffffff8187edcc>] ? start_kernel+0x368/0x371
Oct 7 23:19:24 hpserver kernel: [ 6371.040324] [<ffffffff8187e33a>] ? x86_64_start_reservations+0x125/0x129
Oct 7 23:19:24 hpserver kernel: [ 6371.040331] [<ffffffff8187e438>] ? x86_64_start_kernel+0xfa/0x109
Oct 7 23:19:24 hpserver kernel: [ 6371.040337] ---[ end trace 1b1a9e948b28fbae ]---
Oct 7 23:19:24 hpserver kernel: [ 6371.040341] tg3: eth0: transmit timed out, resetting
Oct 7 23:19:24 hpserver kernel: [ 6371.040473] tg3: DEBUG: MAC_TX_STATUS[ffffffff] MAC_RX_STATUS[ffffffff]
Oct 7 23:19:24 hpserver kernel: [ 6371.040609] tg3: DEBUG: RDMAC_STATUS[ffffffff] WDMAC_STATUS[ffffffff]
Oct 7 23:19:24 hpserver kernel: [ 6371.141999] tg3: tg3_stop_block timed out, ofs=2c00 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6371.243352] tg3: tg3_stop_block timed out, ofs=2000 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6371.344694] tg3: tg3_stop_block timed out, ofs=2400 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6371.446043] tg3: tg3_stop_block timed out, ofs=2800 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6371.547385] tg3: tg3_stop_block timed out, ofs=3000 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6371.648735] tg3: tg3_stop_block timed out, ofs=1400 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6371.750080] tg3: tg3_stop_block timed out, ofs=1800 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6371.851429] tg3: tg3_stop_block timed out, ofs=c00 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6371.952773] tg3: tg3_stop_block timed out, ofs=4800 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6372.054121] tg3: tg3_stop_block timed out, ofs=1000 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6372.155464] tg3: tg3_stop_block timed out, ofs=1c00 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6372.256854] tg3: tg3_abort_hw timed out for eth0, TX_MODE_ENABLE will not clear MAC_TX_MODE=ffffffff
Oct 7 23:19:24 hpserver kernel: [ 6372.358269] tg3: tg3_stop_block timed out, ofs=3c00 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6372.459611] tg3: tg3_stop_block timed out, ofs=4c00 enable_bit=2
Oct 7 23:19:24 hpserver kernel: [ 6373.847052] tg3: eth0: No firmware running.
Oct 7 23:19:24 hpserver kernel: [ 6375.061957] tg3: tg3_abort_hw timed out for eth0, TX_MODE_ENABLE will not clear MAC_TX_MODE=ffffffff
Oct 7 23:19:24 hpserver kernel: [ 6388.621871] tg3: eth0: Link is down.

lspci | grep Ethernet:
02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet PCI Express (rev 20)