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cliMaster crashed with signal 6

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TitlecliMaster crashed with signal 6
Symptoms
If Xoff mode (ctrl + S) is used in telnet during "show tech-support all detail" execution for about 15mins, cliMaster crashed with signal 6.
Slot-2 Stack.1 # show debug system-dump slot 1
Please wait. Your command is being processed.

===============================================
            Slot-1 system dump information
===============================================
core_dump_info storage: 8/5120 used [EMPTY]
failure: process crash
time: Tue Nov  3 18:44:08 2015
process cliMaster
pid 1942
signal 6
$0 : z0=0000000000000000 at=0000000000000001 v0=0000000000000200 v1=0000000000000001
$4 : a0=0000000000c2fb54 a1=0000000000000080 a2=0000000000000002 a3=0000000000000001
$8 : t0=0000000000000001 t1=000000002d2d2d2d t2=0000000000000000 t3=0000000000000000
$12: t4=0000000020342c20 t5=00000000444d5f4d t6=0000000053475f43 t7=0000000000450000
$16: s0=0000000000c2fb54 s1=0000000000000080 s2=0000000000000000 s3=000000000045d890
$20: s4=0000000000c1edf0 s5=0000000000000000 s6=0000000000450000 s7=0000000000000000
$24: t8=000000000044e220 t9=000000002ab08928
$28: gp=000000002ab29020 sp=000000007fff67b0 s8=0000000000000538 ra=000000002ab01044
Hi : 0000000000000c00
Lo : 0000000000000000
epc   : 000000002ab08964    Tainted: P
Status: 00009cf3
Cause : 00800020
000000007fff67b0: 00c2fb54 00c2fb54 2ab29020 00000000 00000000 00000aff 2ab29020 00000068
000000007fff67d0: 00000001 2b38e510 0045d890 00c2fae8 00c2fb54 2b3987b8 00000008 00c1edf0
000000007fff67f0: 2b3f0e30 2ab29b48 0045d890 00000003 2b3f0e30 00000aff 2ab504f0 00cfd530
000000007fff6810: 0045d890 00450000 00000003 00409f00 00000000 00000067 00000032 7fff68ac
000000007fff6830: 00000298 00000068 00000033 00c1ec80 00000068 00000034 00c1edf0 0000006c
000000007fff6850: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
000000007fff6870: 00000000 00000000 0045d8d8 0045f834 00001f5c 0045de64 0045dcfa 01690034
000000007fff6890: 00000000 00000000 00000000 00000000 00000000 00000000 00003436 00000000
000000007fff68b0: 00000006 00000005 53746163 6b000000 00000000 00000000 00000000 00000000
000000007fff68d0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
000000007fff68f0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
000000007fff6910: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
000000007fff6930: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
000000007fff6950: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
000000007fff6970: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
000000007fff6990: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
log: ... 30:25:58 topo is ring but we're not blocking participant
log: <6>STM: 11930:25:58 topo is ring but we're not blocking participant
log: <7>{0}ledConfigSpeedMode: port 1:49 (bcm 0:49) uses 40G LED mode
log: <7>{0}ledConfigSpeedMode: port 1:53 (bcm 0:53) uses 40G LED mode
Environment
  • EXOS 21.1
  • All EXOS platforms where EXOS 21.1 can be installed.
Cause
The root cause is the software defect xos0063031
Resolution
Upgrade to EXOS version where xos0063031 is fixed.
Additional notes

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