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[Toan <615053@xxxxxxxxxxxxxxxxxx>]

I am affected by this bug on an HP 705 MT Server.  It however, uses a
boardcom 6257 chipset.  The bug that I am experiencing is not
recoverable, had to reboot the system to get network online again.

If anyone here needs more info, please let me know.

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Title:
  tg3 network disconnects during high usage

Status in linux package in Ubuntu:
  Incomplete
Status in Debian GNU/Linux:
  New

Bug description:
  Binary package hint: linux-generic

  During periods of high volume network traffic the tg3 module drops
  out/in repeatedly.

  Aug  8 10:46:04 repos kernel: [  296.226367] tg3: eth1: Link is down.
  Aug  8 10:46:06 repos kernel: [  298.757874] tg3: eth1: Link is up at 1000 Mbps, full duplex.
  Aug  8 10:46:06 repos kernel: [  298.757881] tg3: eth1: Flow control is on for TX and on for RX.
  Aug  8 10:46:18 repos kernel: [  310.227127] tg3: eth1: Link is down.
  Aug  8 10:46:20 repos kernel: [  312.796360] tg3: eth1: Link is up at 1000 Mbps, full duplex.
  Aug  8 10:46:20 repos kernel: [  312.796367] tg3: eth1: Flow control is on for TX and on for RX.
  Aug  8 10:46:31 repos kernel: [  323.818955] tg3: eth1: Link is down.
  Aug  8 10:46:34 repos kernel: [  326.177056] tg3: eth1: Link is up at 1000 Mbps, full duplex.
  Aug  8 10:46:34 repos kernel: [  326.177062] tg3: eth1: Flow control is on for TX and on for RX.
  Aug  8 10:46:54 repos kernel: [  346.834385] tg3: eth1: Link is down.
  Aug  8 10:46:57 repos kernel: [  349.258010] tg3: eth1: Link is up at 1000 Mbps, full duplex.
  Aug  8 10:46:57 repos kernel: [  349.258016] tg3: eth1: Flow control is on for TX and on for RX.
  Aug  8 10:47:13 repos kernel: [  365.228754] tg3: eth1: Link is down.
  Aug  8 10:47:15 repos kernel: [  367.671012] tg3: eth1: Link is up at 1000 Mbps, full duplex.
  Aug  8 10:47:15 repos kernel: [  367.671018] tg3: eth1: Flow control is on for TX and on for RX.
  Aug  8 10:47:26 repos kernel: [  378.229198] tg3: eth1: Link is down.
  Aug  8 10:47:28 repos kernel: [  380.674225] tg3: eth1: Link is up at 1000 Mbps, full duplex.
  Aug  8 10:47:28 repos kernel: [  380.674231] tg3: eth1: Flow control is on for TX and on for RX.

  lspci snippet:
  02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express (rev 11)
  03:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express (rev 11)

  dmesg snippet:
  [    1.009868] eth0: Tigon3 [partno(BCM95721) rev 4101] (PCI Express) MAC address 00:17:a4:eb:4d:1f
  [    1.009871] eth0: attached PHY is 5750 (10/100/1000Base-T Ethernet) (WireSpeed[1])
  [    1.009874] eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
  [    1.009876] eth0: dma_rwctrl[76180000] dma_mask[64-bit]
  [    1.029156] eth1: Tigon3 [partno(BCM95721) rev 4101] (PCI Express) MAC address 00:17:a4:eb:4d:1e
  [    1.029160] eth1: attached PHY is 5750 (10/100/1000Base-T Ethernet) (WireSpeed[1])
  [    1.029162] eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1]
  [    1.029165] eth1: dma_rwctrl[76180000] dma_mask[64-bit]

  uname -a:
  Linux repos 2.6.32-24-generic #38-Ubuntu SMP Mon Jul 5 09:22:14 UTC 2010 i686 GNU/Linux

  I have confirmed this bug with every Broadcom NetXtreme based server I
  have, and is completely repeatable by saturating the network link for
  more than a few seconds.

  This might not be a tg3 bug, it is possible it is a known firmware
  bug.  Broadcom does not issue firmware fixes to the public, instead
  they rely on vender's to roll them out.

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