Date:	Thu, 01 Oct 2009 10:34:28 +0200
From:	Jesper Dangaard Brouer <jdb@...x.dk>
To:	Michael Chan <mchan@...adcom.com>,
	Matt Carlson <mcarlson@...adcom.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	sander.contrib@...il.com, "David S. Miller" <davem@...emloft.net>
Subject: tg3: bug report, driver freeze (transmit timed out), ifdown+ifup
	makes interface work again


A friend of mine is experiencing problems with his tg3 based NIC.  He is
experiencing the net stops working (transmit timed out), and he hade to
access the console to get it working again.

Kernel: 2.6.26-2-686 (standard Debian package)
OS: Debian Lenny 5.0 (all upgrades)

Ethernet controller: Broadcom Corporation NetXtreme BCM5700 Gigabit Ethernet (rev 12)
 Subsystem: Dell Broadcom BCM5700
 eth1: Tigon3 [partno(none) rev 7102 PHY(5401)]

Is this a known issue? (If so what kernel is it fixed in... that I can
make him test...)

Cite:
According to the kernel log the tg3 driver tries to reset it self.
However, even though it looks like the interface is up, it is not!

A manuel ifdown eth1 && ifup eth1 does the trick.

According to my rtorrent I had used about 4GB of traffic (combined
down/up)..  so a qualified guess could be a 32-bit limitation in the
tg3-driver?


Server specs:
 DELL PowerEdge 2550
 2 GB Ram
 2x1 Ghz Pentium III (Coppermine)


Sep 30 11:45:46 samurai kernel: [1145615.063992] NETDEV WATCHDOG: eth1: transmit timed out
Sep 30 11:45:46 samurai kernel: [1145615.064028] tg3: eth1: transmit timed out, resetting
Sep 30 11:45:46 samurai kernel: [1145615.064052] tg3: DEBUG: MAC_TX_STATUS[00000008] MAC_RX_STATUS[00000008]
Sep 30 11:45:46 samurai kernel: [1145615.064078] tg3: DEBUG: RDMAC_STATUS[00000000] WDMAC_STATUS[00000000]
Sep 30 11:45:46 samurai kernel: [1145615.064119] ------------[ cut here]------------
Sep 30 11:45:46 samurai kernel: [1145615.064141] WARNING: at net/sched/sch_generic.c:222 dev_watchdog+0x8f/0xdc()
Sep 30 11:45:46 samurai kernel: [1145615.064174] Modules linked in: iptable_mangle iptable_nat nf_nat ipt_LOG nf_conntrack_ip
v4 xt_state nf_conntrack xt_tcpudp iptable_filter ip_tables x_tables ipv6 dm_snapshot dm_mirror dm_log dm_mod loop parport_pc
 parport evdev psmouse snd_pcm snd_timer snd soundcore snd_page_alloc serio_raw pcspkr shpchp pci_hotplug i2c_piix4 i2c_core
button sworks_agp agpgart dcdbas ext3 jbd mbcache sg sd_mod ide_cd_mod cdrom ide_pci_generic serverworks ide_core floppy aacr
aid aic7xxx scsi_transport_spi ata_generic e100 ohci_hcd libata scsi_mod dock tg3 usbcore 8139cp 8139too mii thermal processo
r fan thermal_sys [last unloaded: scsi_wait_scan]
Sep 30 11:45:46 samurai kernel: [1145615.064517] Pid: 0, comm: swapper Not tainted 2.6.26-2-686 #1
Sep 30 11:45:46 samurai kernel: [1145615.064549]  [<c01225f3>] warn_on_slowpath+0x40/0x66
Sep 30 11:45:46 samurai kernel: [1145615.064594]  [<c0119160>] hrtick_start_fair+0xeb/0x12c
Sep 30 11:45:46 samurai kernel: [1145615.064635]  [<c0118926>] enqueue_task+0x52/0x5d
Sep 30 11:45:46 samurai kernel: [1145615.064663]  [<c011894c>] activate_task+0x1b/0x26
Sep 30 11:45:46 samurai kernel: [1145615.064690]  [<c011b6f3>] try_to_wake_up+0xe8/0xf1
Sep 30 11:45:46 samurai kernel: [1145615.064723]  [<c01319a9>] autoremove_wake_function+0xd/0x2d
Sep 30 11:45:46 samurai kernel: [1145615.064760]  [<c01184d1>] __wake_up_common+0x2e/0x58
Sep 30 11:45:46 samurai kernel: [1145615.064792]  [<c011a6bb>] __wake_up+0x29/0x39
Sep 30 11:45:46 samurai kernel: [1145615.064822]  [<c012f11f>] insert_work+0x58/0x5c
Sep 30 11:45:46 samurai kernel: [1145615.064849]  [<c012f40d>] __queue_work+0x1c/0x28
Sep 30 11:45:46 samurai kernel: [1145615.064876]  [<c012f468>] queue_work+0x33/0x3c
Sep 30 11:45:46 samurai kernel: [1145615.064903]  [<c0267035>] dev_watchdog+0x8f/0xdc
Sep 30 11:45:46 samurai kernel: [1145615.064930]  [<c01296d4>] run_timer_softirq+0x11a/0x17c
Sep 30 11:45:46 samurai kernel: [1145615.064960]  [<c0266fa6>] dev_watchdog+0x0/0xdc
Sep 30 11:45:46 samurai kernel: [1145615.064993]  [<c01265f5>] __do_softirq+0x66/0xd3
Sep 30 11:45:46 samurai kernel: [1145615.065022]  [<c01266a7>] do_softirq+0x45/0x53
Sep 30 11:45:46 samurai kernel: [1145615.065047]  [<c012695e>] irq_exit+0x35/0x67
Sep 30 11:45:46 samurai kernel: [1145615.065070]  [<c01101c9>] smp_apic_timer_interrupt+0x6b/0x76
Sep 30 11:45:46 samurai kernel: [1145615.065098]  [<c0102656>] default_idle+0x0/0x53
Sep 30 11:45:46 samurai kernel: [1145615.065127]  [<c0104364>] apic_timer_interrupt+0x28/0x30
Sep 30 11:45:46 samurai kernel: [1145615.065156]  [<c0102656>] default_idle+0x0/0x53
Sep 30 11:45:46 samurai kernel: [1145615.065189]  [<c0114d78>] native_safe_halt+0x2/0x3
Sep 30 11:45:46 samurai kernel: [1145615.065225]  [<c0102683>] default_idle+0x2d/0x53
Sep 30 11:45:46 samurai kernel: [1145615.065250]  [<c01025ce>] cpu_idle+0xab/0xcb
Sep 30 11:45:46 samurai kernel: [1145615.065291]  =======================
Sep 30 11:45:46 samurai kernel: [1145615.065311] ---[ end trace 0dbb94f68d53053b ]---
Sep 30 11:45:46 samurai kernel: [1145615.457820] tg3: tg3_stop_block timed out, ofs=2c00 enable_bit=2
Sep 30 11:45:46 samurai kernel: [1145615.557909] tg3: tg3_stop_block timed out, ofs=3400 enable_bit=2
Sep 30 11:45:46 samurai kernel: [1145615.657903] tg3: tg3_stop_block timed out, ofs=2400 enable_bit=2
Sep 30 11:45:46 samurai kernel: [1145615.758203] tg3: tg3_stop_block timed out, ofs=1800 enable_bit=2
Sep 30 11:45:47 samurai kernel: [1145615.858203] tg3: tg3_stop_block timed out, ofs=c00 enable_bit=2
Sep 30 11:45:47 samurai kernel: [1145615.958203] tg3: tg3_stop_block timed out, ofs=4800 enable_bit=2
Sep 30 11:45:47 samurai kernel: [1145616.089213] tg3: eth1: Link is down.
Sep 30 11:45:49 samurai kernel: [1145618.565251] tg3: eth1: Link is up at 100 Mbps, full duplex.
Sep 30 11:45:49 samurai kernel: [1145618.565288] tg3: eth1: Flow control is off for TX and off for RX.

Sep 30 14:02:09 samurai kernel: [1154721.802641] NETDEV WATCHDOG: eth1: transmit timed out
Sep 30 14:02:09 samurai kernel: [1154721.802679] tg3: eth1: transmit timed out, resetting
Sep 30 14:02:09 samurai kernel: [1154721.802702] tg3: DEBUG: MAC_TX_STATUS[00000008] MAC_RX_STATUS[00000008]
Sep 30 14:02:09 samurai kernel: [1154721.802729] tg3: DEBUG: RDMAC_STATUS[00000000] WDMAC_STATUS[00000000]
Sep 30 14:02:09 samurai kernel: [1154721.974663] tg3: tg3_stop_block timed out, ofs=1800 enable_bit=2
Sep 30 14:02:09 samurai kernel: [1154722.078613] tg3: tg3_stop_block timed out, ofs=4800 enable_bit=2
Sep 30 14:02:09 samurai kernel: [1154722.206614] tg3: eth1: Link is down.
Sep 30 14:02:11 samurai kernel: [1154724.209290] tg3: eth1: Link is up at 100 Mbps, full duplex.
Sep 30 14:02:11 samurai kernel: [1154724.209328] tg3: eth1: Flow control is off for TX and off for RX.

-- 
Med venlig hilsen / Best regards
  Jesper Brouer
  ComX Networks A/S
  Linux Network developer
  Cand. Scient Datalog / MSc.
  Author of http://adsl-optimizer.dk
  LinkedIn: http://www.linkedin.com/in/brouer

lspci -vvv
01:08.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5700 Gigabit Ethernet (rev 12)
        Subsystem: Dell Broadcom BCM5700
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 32 (16000ns min), Cache Line Size: 32 bytes
        Interrupt: pin A routed to IRQ 17
        Region 0: Memory at feb00000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [40] PCI-X non-bridge device
                Command: DPERE- ERO- RBC=512 OST=1
                Status: Dev=ff:1f.1 64bit+ 133MHz+ SCD- USC- DC=simple DMMRBC=512 DMOST=1 DMCRS=8 RSCEM- 266MHz- 533MHz-
        Capabilities: [48] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=1 PME-
        Capabilities: [50] Vital Product Data <?>
        Capabilities: [58] Message Signalled Interrupts: Mask- 64bit+ Queue=0/3 Enable-
                Address: da6771daee5b44a4  Data: 889a
        Kernel driver in use: tg3
        Kernel modules: tg3


ethtool -i eth1:
driver: tg3
version: 3.92.1
firmware-version:
bus-info: 0000:01:08.0

Sep 18 22:34:19 samurai kernel: [ 4.707217] eth1: Tigon3 [partno(none) rev 7102 PHY(5401)] (PCI:66MHz:64-bit) 10/100/1000B
ase-T Ethernet 00:06:5b:39:d3:4a
Sep 18 22:34:19 samurai kernel: [ 4.707217] eth1: RXcsums[1] LinkChgREG[1] MIirq[1] ASF[0] WireSpeed[0] TSOcap[0]
Sep 18 22:34:19 samurai kernel: [ 4.707217] eth1: dma_rwctrl[76ff000f] dma_mask[64-bit]
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