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System crashed when flapping the port which has ospfv3 adjacency.

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TitleSystem crashed when flapping the port which has ospfv3 adjacency.
Symptoms
System crashed when flapping the port which has ospfv3 adjacency.
Following messages are seen in logs:
03/09/2017 20:18:15.51 <Warn:EPM.UnexpctRebootDtect> Booting after System Failure.
03/09/2017 20:18:15.33 <Noti:EPM.wd_warm_reset> Changing to watchdog warm reset mode
System-dump collected:
-> show debug system-dump    
===============================================
	    Switch system dump information
===============================================
core_dump_info storage: 8/3072 used [EMPTY]
failure: kernel oops
reason: Oops
time: Thu Mar  9 20:13:44 2017
$0 : z0=0000000000000000 at=000000001000dce0 v0=a80000004ee6b8c8 v1=a80000003a241728
$4 : a0=a80000003a241728 a1=0000000000000001 a2=0000000000000000 a3=0000000000000000
$8 : t0=0000000000000000 t1=ffffffff8067bec8 t2=0000000000003940 t3=0000000000000020
$12: t4=0000000000000000 t5=ffffffff80391dcc t6=00000000000006c0 t7=0000000000000000
$16: s0=a80000002e86b840 s1=0000000000160000 s2=a80000002e86b860 s3=0000000000000000
$20: s4=0000000000000000 s5=0000000000000001 s6=0000000000000000 s7=0000000057f4f1d2
$24: t8=0000000000000000 t9=8000000000000000
$28: gp=ffffffff80e48000 sp=ffffffff80e4bc80 s8=0000000000000012 ra=ffffffff8023f85c
Hi : 0000000000000000
Lo : 0000000000a2d730
epc   : a80000004ee6b8c8 <not available> Tainted: P          
Status: 1000dce2
Cause : 1080000c
Environment
  • EXOS 15.x, 16.1
  • All EXOS platorms
  • OSPFv3
Cause
The root cause of the issue is the product defect xos0065746.
Resolution
Upgrade to the following or newer releases:
16.1.4.2-patch1-3
16.1.3.6-patch8-1
Additional notes

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