Cisco Cisco IOS Software Release 12.2(33)SRE

-12.2(33)SB1b

-12.2(33)SB2

-12.2(33.05.14)SRB

-12.2(33.02.09)SRC

-12.2(33)SRC3

-12.4(20)T2

-12.4(22)T1

-12.2(33)SXI or later releases.

Workaround: Remove the configuration lines related to the inactive neighbors (neighbors in Idle or 
Active states). 

CSCsy58886

Symptoms: Router crash is seen during ISSU with mls qos enabled.

Conditions: Occurs when user does ISSU from Cisco IOS Release 12.2(33)SRC2 to SRC3 or from 
12.2(33)SRD1 to later SRD release.

Workaround: Disable QoS globally using the no mls qos command. 

CSCsy83830

Symptoms: Router crashes when we send multiple access packets for same username when 
configured for RADIUS Load Balancing (RLB).

Conditions: Occurs with the following topology

CLIENT----->RLB----->SERVER

Client sends multiple access retry packets to server and router crashes after a period of time. This 
issue will be seen in cases where multiple access requests are seen for the same username, and 60 
seconds expire since the arrival of the first of such access requests, before an accounting start for 
the same username is seen.

Workaround: If RLB do not see multiple access packets we wouldn’t see any crash. 

CSCsy86078

Symptoms: Router crashes with memory corruption.

Conditions: Occurs when BFD is configured on 10GigE interfaces and constant link flaps.

Workaround: There is no workaround. 

CSCsy87385

Symptoms: For IPv6 adjacencies, MTU is incorrectly programmed.

Conditions: Occurs with simple IPv6/6PE setup.

Workaround: There is no workaround. 

CSCsy88640

Symptoms: A core dump may fail to write, with the following errors seen on the console:

current memory block, bp = 0x4B5400A0,

memorypool type is Exception

data check, ptr = 0x4B5400D0

bp->next(0x00000000) not in any mempool