Example; Redundancy And Process Restartability - Cisco CRS-1 - Carrier Routing System Router Troubleshooting Manual

Chapter 8 Process Monitoring and Troubleshooting
•
If your system is running Release 3.8.0, 3.8.1, 3.8.2, or 3.9.0 software, you should not run the
Caution
follow process and follow job commands, because these can cause a kernel crash at the target node.
Therefore, for these software releases, you should use other available commands for troubleshooting and
call Cisco Technical Support if the problem is not resolved. (This crash behavior does not occur for
releases other than the ones listed.)
•
Some processes are dangerous to restart. It is recommended that you involve your technical
Caution
representative and follow the advice from Cisco Technical Support. For contact information for
Cisco Technical Support, see the
on page viii

Example:

RP/0/RP0/CPU0:router# show processes blocked
Jid
65546
51
51
75
75
75
75
50
334
247
65750 644260054
65752 655270104
367
65772 655229164
65773 656842989
65774 656842990
Note To troubleshoot a blocked process, use the procedure in the
on page

Redundancy and Process Restartability

On systems using Cisco IOS XR software, applications primarily use a combination of two fatal error
recovery methods: process restartability and process (application) redundancy.
OL-21483-02
Collect data from the follow job or follow process command. See the
on page 8-173 for more information on these commands.
Use the dumpcore running job-id location node-id command on the affected process. The output
of the dumpcore is located in harddisk:/dumper, unless the location has been configured using the
exception choice command.
in the Preface.
Pid Tid
8202 1
36890 2
36890 3
36893 5
36893 6
36893 7
36893 8
36899 2
172108 1
290991 2
1
1
2642149 5
1
1
1 show_processes Reply
8-188.
"Obtaining Documentation and Submitting a Service Request" section
Name State Blocked-on
ksh Reply
attachd Reply 32791
attachd Reply 12301
qnet Reply 32791
qnet Reply 32791
qnet Reply 32791
qnet Reply 32791
attach_server Reply 12301
tftp_server Reply 12301
lpts_fm Reply 184404
exec Reply
config Reply 286888
mpls_ldp Reply 2642153
exec Reply
more Reply 12299
Cisco IOS XR Troubleshooting Guide for the Cisco CRS-1 Router
Redundancy and Process Restartability
"follow Command" section
8200 devc-conaux
eth_server
mqueue
eth_server
eth_server
eth_server
eth_server
mqueue
mqueue
lpts_pa
1 kernel
devc-vty
lspv_server
1 kernel
pipe
1 kernel
"Troubleshooting a Process Block" section
8-179