Cisco Cisco IOS XR Software Release 4.0

Caveats describe unexpected behavior in Cisco IOS XR software releases. Severity-1 caveats are the 
most serious caveats; severity-2 caveats are less serious.

This section contains caveats that are generic to the Cisco IOS XR Release 4.0.0 software and those 
specific to the Cisco XR 12000 Series Router.

The following open caveats apply to Cisco IOS XR Software Release 4.0.0 and are not platform 
specific:

xml_tty_agent coredump during XML polling 

The xml_tty_agent process will coredump on a DRP card.

This symptom occurs when querying the diagnostic xml schema.

None.

None needed, the process will restart properly

length and width not reflected in newly opened vty session 

length and width size not reflected newly opened vty session instead it take in to effect on already 
opened vty

we may see this issue after configuring length and width config in vty by template 

None.

None.

4.0.0 :29C: sh tech l2vpn file not able to untar/corrupted 

Symptom:

1. The file created cannot be untarred properly. Indicates a corrupted file