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CPU Switchover During Access Policy Validation

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TitleCPU Switchover During Access Policy Validation
Symptoms
VSP 9012 chassis CP 1 crashed with a core dump resulting in CPU switch over from CP 1 to CP 2.

Below is the crash sequence
CP1 [05/28/18 10:02:55.274:UTC] 0x00270407 00000000 GlobalRouter SW ERROR Process cbcp-main.x (2670) died, exit status: uncaught signal: 11 (core dumped)

CP1 [05/28/18 10:02:55.274:UTC] 0x00270412 00000000 GlobalRouter SW INFO Saving core file in file: /intflash/coreFiles/1/core.1527501735.tMainTask.1.gz

CP1 [05/28/18 10:02:55.275:UTC] 0x00270417 00000000 GlobalRouter SW INFO Saving backtrace file in file: /intflash/coreFiles/1/backtrace.1527501738.tMainTask.1.2670

CP1 [05/28/18 10:02:55.275:UTC] 0x00270408 00000000 GlobalRouter SW ERROR Critical Process cbcp-main.x (2670) died

CP2 [05/28/18 10:02:55.673:UTC] 0x00010738 00000000 GlobalRouter HW ERROR Critical error encountered for slot:1, error: critical process died, autoboot

CP1 [05/28/18 10:02:59.891:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /intflash/coreFiles/1/core.1527501735.tMainTask.1.gz

CP1 [05/28/18 10:02:59.891:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /intflash/coreFiles/1/backtrace.1527501738.tMainTask.1.2670

CP1 [05/28/18 10:02:59.892:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /intflash/PMEM/1/pmem.20180528190218.1.bin.gz

CP1 [05/28/18 10:02:59.892:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /extflash/trace/02-1.trc

CP1 [05/28/18 10:02:59.892:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /extflash/trace/01-1.trc

CP1 [05/28/18 10:02:59.892:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /intflash/config.cfg

CP1 [05/28/18 10:02:59.892:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /extflash/log.cce00001.147

CP1 [05/28/18 10:02:59.892:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /proc/interrupts

CP1 [05/28/18 10:02:59.892:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /var/log/messages*

CP1 [05/28/18 10:02:59.892:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /var/local/fsck1

CP1 [05/28/18 10:02:59.892:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /var/local/fsck2

CP1 [05/28/18 10:02:59.893:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /intflash/release/version.cfg

CP1 [05/28/18 10:02:59.893:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /intflash/release/4.2.0.0.GA/patches/committed.txt

CP1 [05/28/18 10:02:59.893:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /opt/appfs/etc/catcs.txt

CP1 [05/28/18 10:02:59.893:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /arch.txt

CP1 [05/28/18 10:02:59.893:UTC] 0x00270420 00000000 GlobalRouter SW INFO Creating debug archive tarball: adding /cpuinfo.txt

CP1 [05/28/18 10:03:00.148:UTC] 0x00270421 00000000 GlobalRouter SW INFO Archive creation complete, file name is /intflash/coreFiles/1/core.cbcp-main.x.20180528190259.1.tar

CP2 [05/28/18 10:03:01.999:UTC] 0x00004676 00000000 GlobalRouter SNMP WARNING CPU switch over, stand-by CPU becoming master

CP2 [05/28/18 10:03:01.999:UTC] 0x000045e6 00400006 DYNAMIC SET GlobalRouter SNMP WARNING Sending Warm-Start Trap

 
Environment
VSP 9012/9010
Software Version : 4.2.0.0
Cause
Issue is due to a software defect.
Resolution
Software defect has been documented under JIRA VSP9000-882. Software version which has fix for this bug is 4.2.1.5 or higher. 
Additional notes

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