Cisco Cisco IOS Software Release 12.0(1)T 故障排查指南

cosmetic bug. The only way to get rid of this error message is to upgrade the Cisco IOS software to a later
release.

You must run at least Cisco IOS Software Releases 12.0(11), 12.0(11)S, or 12.1(2), based on the train that you
run. However, if you are faced with another bug, consider an upgrade to the latest Cisco IOS software
available for the corresponding train. If the problem is still present in the latest Cisco IOS software release,
you can contact Cisco Technical Support to open a new bug. At this time, have ready the complete output of
the show logging command with the error messages and the output from the show version in order to decode
the tracebacks.

Refer to Cisco bug ID CSCdp17107 (registered customers only) for further information on this issue.

This message displays whenever an attempt is made to register for an event without first creating the data
structure for that event. This is an internal software bug in the Cisco IOS Software. The output looks
something like this:

%SCHED−2−WATCH: Attempt to enqueue uninitialized watched queue (address 0).

−Process= "Net Input", ipl= 0, pid= 29

−Traceback= 601B821C 60193428 604F59EC 604F6110 601C09F8 601934E0 6019304C 

  601A65E8 601A65D4

You can encounter this kind of error message during an Online Insertion and Removal (OIR) of any type of
card. For instance, on a Cisco 12000 Series Internet router, you can see these messages after you replace a
Gigabit Route Processor (GRP) card in a GSR12016 series router:

%SCHED−2−WATCH: Attempt to set uninitialized watched boolean (address 0).

−Process= "LC Crash Complete Process", ipl= 0, pid= 29

−Traceback= 60189CA8 60244E08 6017562C 60175618

Earlier versions of code contain some redundancy issues. Most of these problems are fixed in the latest Cisco
IOS Software Release 12.0S. Be sure to run a Cisco IOS software release which is later than or at least equal
to Cisco IOS Software Releases12.0(18)S1 and 12.0(17)S2. A cold reload of the router should most likely fix
this issue if a reseat of the faulty card does not work.

The messages are similar to this output on a 7500 Series Router:

%OIR−6−REMCARD: Card removed from slot 3, interfaces disabled

%SCHED−2−WATCH: Attempt to set uninitialized watched Boolean (address 0).

−Process= "OIR Handler", ipl= 0, pid= 7

−Traceback= 60236120 60C64838 60280594 60280874 602211BC 602211A8

Most of the time these SCHED error messages are due to an internal software bug in the Cisco IOS software.
Therefore, the first step in troubleshooting these error messages is to look for a known bug.

An upgrade to the latest Cisco IOS software image in your release train gets rid of all fixed Cisco IOS
software scheduler−related bugs.

If the problem still appears, contact your Cisco support representative with an exact copy of the error
message, along with the output from a show tech−support and a show log command.