On 16.03.2009 22:23, Michael Chan wrote:

On Sun, 2009-03-15 at 14:32 -0700, Andrew Morton wrote:

quoted

quoted

[784063.389142] tg3: eth0: transmit timed out, resetting
[784063.447106] tg3: DEBUG: MAC_TX_STATUS[ffffffff] MAC_RX_STATUS[ffffffff]
[784063.524104] tg3: DEBUG: RDMAC_STATUS[ffffffff] WDMAC_STATUS[ffffffff]

At the time of tx timeout, the registers all return 0xffffffff.  Does
the subsequent reset bring the device back?  If the device is brought
back, there should be a link up message and traffic should resume.  If
not, please provide lspci -vvvxxx on the eth0 device after the failure.

Attached, both after the crash (tg3.crashed) and after I reloaded the 
module (tg3.reloaded). Additional info, ifdown/ifup does not fix the 
situation, both take pretty long

# ifdown eth0
tg3: tg3_abort_hw timed out for eth0, TX_MODE_ENABLE will not clear 
MAC_TX_MODE=ffffffff
# ifup eth0
tg3 0000:03:04.0: irq 1272 for MSI/MSI-X
ADDRCONF(NETDEV_UP): eth0: link is not ready

and it stays dead.

# rmmod tg3
tg3 0000:03:04.1: PCI INT B disabled
tg3 0000:03:04.0: PCI INT A disabled
# modprobe tg3
tg3.c:v3.94 (August 14, 2008)
tg3 0000:03:04.0: enabling device (0000 -> 0002)
tg3 0000:03:04.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
eth0: Tigon3 [partno(N/A) rev 9003 PHY(5714)] (PCIX:133MHz:64-bit) 
10/100/1000Base-T Ethernet 00:21:5a:99:0a:28
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] WireSpeed[1] TSOcap[1]
eth0: dma_rwctrl[76148000] dma_mask[40-bit]
tg3 0000:03:04.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
eth1: Tigon3 [partno(N/A) rev 9003 PHY(5714)] (PCIX:133MHz:64-bit) 
10/100/1000Base-T Ethernet 00:21:5a:99:0a:29
eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] WireSpeed[1] TSOcap[1]
eth1: dma_rwctrl[76148000] dma_mask[40-bit]
# ifup eth0
ADDRCONF(NETDEV_UP): eth0: link is not ready
device eth0 entered promiscuous mode
tg3: eth0: Link is up at 100 Mbps, full duplex.
tg3: eth0: Flow control is off for TX and off for RX.
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

and I'm up and running again.

Also, when one ethernet port fails, does the other port (from the same
dual port device) function ok?

Still no clue about that, I need to find someone who can connect 
something there.

Bernhard