ERROR MESSAGE NOTIFICATIONS (if any) %SYS-3-CPUHOG: Task ran for [dec] msec ([dec]/[dec]), process = [chars], PC = [hex]. Explanation: Every process that runs must relinquish the processor after a certain period so that other processes can run. 'CPUHOG' is an informational message that occurs when a certain process holds the CPU for 2000 msec or longer. This problem can occur due to one or more of these conditions: Heavy Traffic System load Faulty hardware Improper operational configuration Configuration change Initialization of many interfaces High momentary error rate Sustained abnormal condition Software bug in the IOS during normal operation. Recommended Action: If communication is fine, and no other messages are displayed before this message, you can ignore the CPUHOG message. If another error message appears along with this message, decode the other error message using the Error Message Decoder tool. If the CPU usage is high because of IP input process, then the router is process-switching a lot of IP traffic. Enable CEF to lower the CPU usage by this process. Review the Bug Toolkit for potential issues related to this issue. REFERENCE: For more information, see TCC K14040270 What Causes %SYS-3-CPUHOG Messages? Troubleshooting High CPU Utilization on Cisco Routers Troubleshooting High CPU Utilization Due to the IP Input Process Troubleshooting High CPU Utilization Due to Processes IP Simple Network Management Protocol (SNMP) Causes High CPU Utilization How to Choose the Best Router Switching Path for Your Network REFERENCE: For information on %SYS-3-CPUHOG, see TAC Case Collection - SYS-3-CPUHOG. %SYS-2-EXCEPTIONDUMP (x1): System Crashed, Writing Core.... Explanation: The system has crashed because of an exception; a core dump is being generated. Recommended Action: Copy the error message exactly as it appears on the console or in the system log. Issue the show tech-support command to gather data that may help identify the nature of the error. If you cannot determine the nature of the error from the error message text or from the show tech-support command output, contact your Cisco technical support representative, and provide the representative with the gathered information. %SYS-2-EXCEPTIONDUMP (x0): System Crashed, Writing Core.... Explanation: The system has crashed because of an exception. A core dump is being generated. Recommended Action: Copy the error message exactly as it appears on the console or in the system log, contact your Cisco technical support representative, and provide the representative with the gathered information. %SYS-3-BADBLOCK (x1): Bad block pointer [hex] Explanation: A block of memory at the indicated location is corrupt. Recommended Action: If this message recurs, copy the error message exactly as it appears on the console or in the system log, contact your Cisco technical support representative, and provide the representative with the gathered information. %SYS-6-MTRACE (x2): [chars]: addr, pc [hex],[hex] [hex],[hex] [hex],[hex] [hex],[hex] [hex],[hex] [hex],[hex] [hex],[hex] [hex],[hex] Explanation: This is an auxiliary message that is generated by one of several memory-related messages. This message provides the address of the memory block and the calling program counter for the last eight blocks allocated and for the last eight blocks freed. This message provides additional information only. Recommended Action: Copy the error message exactly as it appears on the console or in the system log, contact your Cisco technical support representative, and provide the representative with the gathered information. %SYS-6-BLKINFO (x1): [chars]blk [hex], words [int], alloc [hex], [chars], dealloc [hex], rfcnt [hex] Explanation: This is an auxiliary message that is generated by one of several memory-related messages. This message provides a formatted display of some of the information in the header of a corrupted data block. This message provides additional information only. Recommended Action: Copy the error message exactly as it appears on the console or in the system log, contact your Cisco technical support representative, and provide the representative with the gathered information. %SYS-6-MEMDUMP (x3): [hex]: [hex] [hex] [hex] [hex] Explanation: This is an auxiliary message that is generated by one of several memory-related messages. This message provides a formatted display of some of the information in the header of a corrupted data block. This message provides additional information only. Recommended Action: Copy the error message exactly as it appears on the console or in the system log, contact your Cisco technical support representative, and provide the representative with the gathered information. Include the previously printed error message. Back to top STACK DECODE NOTIFICATIONS (if any) ERROR: Platform and Version information was not found. In order to decode the Traceback information, the Stack Decoder requires the platform and version information to be present in the output and precede any Tracebacks or Stack Traces. TRY THIS: Collect the output of the 'show version' command, and the Traceback or Stack Trace information and submit it to the Output Interpreter. Here is an example of a Traceback output with version information: Cisco Internetwork Operating System Software IOS (tm) RSP Software (RSP-PV-M), Version 12.0(19)S2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) TAC Support: http:www.cisco.comtac Copyright (c) 1986-2002 by cisco Systems, Inc. Compiled Sat 02-Feb-02 21:27 by dchih Image text-base: 0x60010968, data-base: 0x60DAE000 Traceback= 0x60251F84 0x60254820 0x60250A58 0x602549F0 0x60257E0C 0x601E6B8C 0x601E6C38 0x6015332C 0x60153500 0x601CC454 0x601CC440 NOTE: Stack Trace information or Alignment Data can be substituted for the Traceback information.