Cisco CRS-1 - Carrier Routing System Router - Troubleshooting a Process Crash on Line Cards

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Cisco IOS XR Troubleshooting Guide for the Cisco CRS-1 Router
OL-21483-02
Chapter 8 Process Monitoring and Troubleshooting
Troubleshooting High CPU Utilization and Process Timeouts
Current process = "pkg/bin/syslog_dev", PID = 24615 TID = 1
trace_back: #0 0xfc1f6130 [strncat]
trace_back: #1 0x482002a4 [<N/A>]
trace_back: #2 0x48200504 [<N/A>]
trace_back: #3 0xfc1e4408 [_resmgr_io_handler]
trace_back: #4 0xfc1e40b0 [_resmgr_handler]
trace_back: #5 0xfc15aa28 [_eventmgr_resmgr_handler]
trace_back: #6 0xfc159e04 [_event_message_handler]
trace_back: #7 0xfc159d54 [_event_message_handler]
trace_back: #8 0xfc1575a4 [event_dispatch]
trace_back: #9 0x482007bc [<N/A>]
ENDOFSTACKTRACE
Troubleshooting a Process Crash on Line Cards
To troubleshoot a process crash on the line card, perform the following steps.
SUMMARY STEPS
1. Identify the process that crashed (PI or PD) from the crash log. In either case, the stack traces
obtained from the crash needs to be decoded to identify the location in the code where the process
crashed.
2. show install active
3. show version
4. show log
5. show exception
DETAILED STEPS
Command or Action Purpose
Step 1
show install active node-id
Example:
RP/0/RP0/CPU0:router# show install active
location 0/0/CPU0
Node 0/0/CPU0 [RP] [SDR: Owner]
Boot Device: mem:
Boot Image:
/c12k-os-mbi-3.7.0.26I/mbiprp-rp.vm
Active Packages:
mem:c12k-mpls-3.7.0.26I
mem:c12k-mini-3.7.0.26I
Use the show install active command to collect information
about the list of installed software for each node.
Step 2
show version
Example:
RP/0/RP0/CPU0:router# show version | begin
0/0/CPU0
Gives the workspace (directory) and the build server where
image was built.