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NIC went Down after Host Status Block Messages (Doc ID 2520545.1)

Last updated on JUNE 13, 2020

Applies to:

Oracle VM - Version 3.4.3 and later
Linux x86-64
Linux x86

Symptoms

- NIC port started flapping and next went down.


- logs in /var/log/messages are similar to:
Mar 8 21:33:40 <hostname> kernel: [46607980.843315] tg3 0000:02:00.0 em3: Link is up at 1000 Mbps, full duplex
Mar 8 21:33:40 <hostname> kernel: [46607980.843326] tg3 0000:02:00.0 em3: Flow control is off for TX and off for RX
Mar 8 21:33:40 <hostname> kernel: [46607980.843327] tg3 0000:02:00.0 em3: EEE is disabled
Mar 8 21:33:40 <hostname> kernel: [46607980.843396] 10f5fb75825: port 1(em3) entered forwarding state
Mar 8 21:33:40 <hostname> kernel: [46607980.843416] 10f5fb75825: port 1(em3) entered forwarding state
Mar 8 21:33:47 <hostname> kernel: [46607986.420137] tg3 0000:02:00.0 em3: transmit timed out, resetting
Mar 8 21:33:47 <hostname> kernel: [46607987.671795] tg3 0000:02:00.0 em3: 0x00000000: 0x165f14e4, 0x00100406, 0x02000000, 0x00800008
Mar 8 21:33:47 <hostname> kernel: [46607987.677612] tg3 0000:02:00.0 em3: 0x00000010: 0x9413000c, 0x00000000, 0x9414000c, 0x00000000
-----------------------------------------------------------<snip>-----------------------------------------------------------
Mar 8 21:33:47 <hostname> kernel: [46607987.833775] tg3 0000:02:00.0 em3: 0: Host status block [00000001:00000000:(0000:0000:0000):(0000:0000)]
Mar 8 21:33:47 <hostname> kernel: [46607987.834245] tg3 0000:02:00.0 em3: 0: NAPI info [00000000:00000000:(0001:0000:01ff):0000:(00c8:0000:0000:0000)]
-----------------------------------------------------------<snip>-----------------------------------------------------------
Mar 8 21:33:47 <hostname> kernel: [46607987.914713] tg3 0000:02:00.0 em3: Link is down
Mar 8 21:33:47 <hostname> kernel: [46607988.037623] 10f5fb75825: port 1(em3) entered disabled state

Cause

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In this Document
Symptoms
Cause
Solution


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