Sun Fire[TM] 12K/15K/E20K/E25K, Rio External Loopback Test failure (Doc ID 1017539.1)

Last updated on MARCH 30, 2016

Applies to:

Sun Fire 12K Server - Version All Versions and later
Sun Fire 15K Server - Version All Versions and later
Sun Fire E20K Server - Version All Versions and later
Sun Fire E25K Server - Version All Versions and later
All Platforms

Symptoms

After an upgrade to System Management Services 1.5 or higher, you may see a "Rio External Loopback Test failure" reported on one or several HsPCI[+] IO board during Hpost (level >= 16).

Example:

Man Ether IO7 Rio External Loopback Test failure
Rio External Loopback Test Man Ether IO7 results
Post attempted to loopback 8 packets of 128 bytes between the
IO board and the SC.
The test failed after exhausting all 8 retries.
There were 9 hard failures, either a non data error occurred
or no packets were received by the IO board.
There were 0 failures where one or more of the packets was not
fully transferred.
The most packets transferred in any attempt was 0 and those
packets contained 0 bytes in error.
The mand driver reported that it received 0 packets and echoed 0
packets back, with 0 errors in and 0 errors out.
Man Ether Hub IO7 reports:
0       collision-free packets from the SC
1       collisions from the SC
72      collision-free packets from the IO board
0       collisions from the IO board
73      collision-free packets from the network
1       collisions on the interface
FAIL Man Ether IO7: EpiRIOR1_sc_tfunc(): Test FAILED
Primary service FRU is Slot IO7.
Secondary service FRU is EXB EX7, Current main SC, or the logic centerplane.
INTERNAL: xcpdn_parse_devname(Man Ether IO7) returns -1
[...]
I/O_Brds:         IOC  P1/Bus/Adapt   IOC  P0/Bus/Adapt
Slot  Gen  Type   P1   B1/10 B0/10    P0   B1/eb10 B0/10  (e=ENet, b=BBC)
IO07:  P   hsPCI   P    p _p  p _p     P    p fP_p  p _p

Cause

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