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Exception On Base Unit When "show tdr <port_#>" Run After TDR Test Started

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TitleException On Base Unit When "show tdr <port_#>" Run After TDR Test Started
Symptoms
  • TDR (time-domain reflectometer) started on a port from SSH connection
  • Displaying results of TDR test caused base unit to reboot with exception
ERS#tdr test 4/41
%WARNING: TDR test will impact the traffic flow.
Test Started
ERS#show tdr 4/41

Unit/Port           4/41
Port Status         Link up, 100MB, Full Duplex
NormalCableLength   24M
Pair1Status         Normal
Pair1Length         24M
Pair1Polarity       Error

======================
Data Access Exception
======================
bld version: 5.12.3.11 time: (19/Apr/19 10:07:39) view: (productio)
Exception time: 03/SEP/19 13:47:50
sysUpTime: 122 days, 21:38:26
Registers:

     R00      R01      R02      R03      R04      R05      R06      R07
00000053 092314d0 015d0a58 73697320 00000002 09231788 00000003 09231788
     R08      R09      R10      R11      R12      R13      R14      R15
037d554c 000002bf 0000000d 00000008 09231728 025c5c28 014cf0cc 00000000
     R16      R17      R18      R19      R20      R21      R22      R23
00000000 00000000 09231788 09231718 00000020 00000000 00000000 73697320
     R24      R25      R26      R27      R28      R29      R30      R31
00000000 02475cb2 00000000 00000073 00000000 ffffffff 00000073 09231521

LR 0x014ce200,  CTR  0x014ce1a8, MSR  0x0000b032, CR 0x88000448, XER 0x20000000

Exception type: Data Access
Task Name "tCliNum6"
  KrnlSt 0, IntCnt 0, TskLckCnt 0, DAR 0x73697320, PC 0x014b45e0, SP 0x092314d0
- Exception Stack Trace
  + PC 0x014b45e0
  + PC 0x0000001d
  + PC 0x014cf394
  + PC 0x00c69bd0
  + PC 0x01186c48
  + PC 0x00dedf7c
  + PC 0x00c73a8c
  + PC 0x00c7c1f8
  + PC 0x00c7aa9c
  + PC 0x00c7aa54
  + PC 0x00c7af78
  + PC 0x00c7b9dc
  + PC 0x00c60cf8
  + PC 0x010e59e4
  + PC 0x010ccab8
  + PC 0x010ccbf8
  + PC 0xeeeeeeee
= Total 288 Bytes =

 
Environment
  • ERS 4850GTS-PWR+
  • Release 5.12.3.011
Cause
Software defect ERS454800-3097
Resolution
Resolved in 5.12.5 release
Additional notes

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