[rhn-users] Net interface flap, Dell 2650, RH ES 3.0 2.4.21-15.ELsmp, Broadcom BCM5701

Tue May 25 08:51:09 UTC 2004

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Hi.
Do you force the full duplex in the modules.conf file?
You have to type these lines:

alias eth0 bcm5701
options bcm5701 auto_speed=0 full_duplex=1 line_speed=1000

Maila

Jed Donnelley wrote:
| I've been running RH ES 3.0 on a Dell 2650 server with for some time
| with a GigE interface
| with the Broadcom NetXtreme BCM5701 technology the tg3 driver, most
| recently with the
| 2.4.21-9.0.1.ELsmp kernel.  Last week I tried upgrading to the
| 2.4.21-15.ELsmp kernel.
| When I ran with that newer kernel the network interface on the box went
| into a loop of
| going up and down every few seconds.
|
| Here's what I believe is the relevant part of the message log:
|
| May 20 15:58:30 tsi kernel: Linux version 2.4.21-15.ELsmp
| (bhcompile at bugs.build.redhat.com) (gcc version 3.2.3 20030502 (Red Hat
| Linux 3.2.3-34)) #1 SMP Thu Apr 22 00:18:24 EDT 2004
| ...
| May 20 15:58:31 tsi kernel: Processors: 4
| May 20 15:58:31 tsi kernel: xAPIC support is present
| May 20 15:58:31 tsi kernel: Enabling APIC mode: Flat.^IUsing 3 I/O APICs
| May 20 15:58:31 tsi kernel: Kernel command line: ro root=/dev/md0
| May 20 15:58:31 tsi kernel: Initializing CPU#0
| May 20 15:58:31 tsi kernel: Detected 1993.566 MHz processor.
| <actually 2 hyperthreaded procesors>
| ...
| May 20 15:58:38 tsi kernel: eth0: Tigon3 [partno(BCM95701A10) rev 0105
| PHY(5701)] (PCIX:133MHz:64-bit) 10/100/1000BaseT Ethernet 00:06:5b:f8:0f:04
| May 20 15:58:38 tsi kernel: eth0: HostTXDS[0] RXcsums[1] LinkChgREG[1]
| MIirq[1] ASF[0] Split[0] WireSpeed[1] TSOcap[0]
| May 20 15:58:38 tsi kernel: eth1: Tigon3 [partno(BCM95701A10) rev 0105
| PHY(5701)] (PCIX:133MHz:64-bit) 10/100/1000BaseT Ethernet 00:06:5b:f8:0f:05
| May 20 15:58:38 tsi kernel: eth1: HostTXDS[0] RXcsums[1] LinkChgREG[1]
| MIirq[1] ASF[0] Split[0] WireSpeed[1] TSOcap[0]
| May 20 15:58:38 tsi kernel: ip_tables: (C) 2000-2002 Netfilter core team
| May 20 15:58:38 tsi kernel: ip_conntrack version 2.1 (8192 buckets,
| 65536 max) - 304 bytes per conntrack
| May 20 15:58:38 tsi kernel: tg3.c:v3.1 (April 3, 2004)
| May 20 15:58:38 tsi kernel: eth0: Tigon3 [partno(BCM95701A10) rev 0105
| PHY(5701)] (PCIX:133MHz:64-bit) 10/100/1000BaseT Ethernet 00:06:5b:f8:0f:04
| May 20 15:58:38 tsi kernel: eth0: HostTXDS[0] RXcsums[1] LinkChgREG[1]
| MIirq[1] ASF[0] Split[0] WireSpeed[1] TSOcap[0]
| May 20 15:58:38 tsi kernel: eth1: Tigon3 [partno(BCM95701A10) rev 0105
| PHY(5701)] (PCIX:133MHz:64-bit) 10/100/1000BaseT Ethernet 00:06:5b:f8:0f:05
| May 20 15:58:38 tsi kernel: eth1: HostTXDS[0] RXcsums[1] LinkChgREG[1]
| MIirq[1] ASF[0] Split[0] WireSpeed[1] TSOcap[0]
| May 20 15:58:38 tsi kernel: tg3: eth0: Link is up at 1000 Mbps, full
| duplex.
| May 20 15:58:38 tsi kernel: tg3: eth0: Flow control is on for TX and on
| for RX.
| May 20 15:58:38 tsi kernel: tg3: eth0: Link is down.
| May 20 15:58:38 tsi kernel: tg3: eth0: Link is up at 1000 Mbps, full
| duplex.
| May 20 15:58:38 tsi kernel: tg3: eth0: Flow control is on for TX and on
| for RX.
| ...
| May 20 15:58:43 tsi kernel: tg3: eth0: Link is down.
| ...
| May 20 15:58:46 tsi kernel: tg3: eth0: Link is up at 1000 Mbps, full
| duplex.
| May 20 15:58:46 tsi kernel: tg3: eth0: Flow control is on for TX and on
| for RX.
| ...
| May 20 15:58:58 tsi kernel: tg3: eth0: Link is down.
| May 20 15:59:01 tsi kernel: tg3: eth0: Link is up at 1000 Mbps, full
| duplex.
| May 20 15:59:01 tsi kernel: tg3: eth0: Flow control is on for TX and on
| for RX.
| May 20 15:59:02 tsi kernel: tg3: eth0: Link is down.
| May 20 15:59:05 tsi kernel: tg3: eth0: Link is up at 1000 Mbps, full
| duplex.
| May 20 15:59:05 tsi kernel: tg3: eth0: Flow control is on for TX and on
| for RX.
| etc.
|
| Here's the output from ethtool for the interface with the problem:
|
| Settings for eth0:
|         Supported ports: [ MII ]
|         Supported link modes:   10baseT/Half 10baseT/Full
|                                 100baseT/Half 100baseT/Full
|                                 1000baseT/Half 1000baseT/Full
|         Supports auto-negotiation: Yes
|         Advertised link modes:  10baseT/Half 10baseT/Full
|                                 100baseT/Half 100baseT/Full
|                                 1000baseT/Half 1000baseT/Full
|         Advertised auto-negotiation: Yes
|         Speed: 1000Mb/s
|         Duplex: Full
|         Port: Twisted Pair
|         PHYAD: 1
|         Transceiver: internal
|         Auto-negotiation: on
|         Supports Wake-on: g
|         Wake-on: d
|         Current message level: 0x000000ff (255)
|         Link detected: no
|
| With the older 2.4.21-9.0.1.ELsmp kernel I get the same output except
| that I get:
| ...
|         Link detected: yes
|
| with no flapping and with the interface up and functioning.
|
| Has anybody else seen a comparable problem with 2.4.21-15.EL or
| 2.4.21-15.WS
| with a GigE interface with the Broadcom NetXtreme BCM5701 using the tg3
| driver?
|
| I wonder if this problem is related to:
|
| http://www.redhat.com/archives/fedora-test-list/2004-April/msg01880.html
|
| ?  I'm open to any suggestions.  I certainly don't want a network interface
| problem blocking my kernel updates.
|
| --Jed http://www.nersc.gov/~jed/
|
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