Symptom
++ Traceback and reload in Thread Name 'lina' while processing DAP data
++ Below syslog may get generated:
%ASA-1-716528: Unexpected fiber scheduler error; possible out-of-memory condition
++ The Console may generate log like below:
thr: 0x00000055582f27e0 cur_t: 0x00000055582f27e0 thread: aaa_shim_thread cpu: 1 watchdog_cycles: 0 time_this_run: 3036925394 cur_t->watchdog_cycles: 0
watchdog_time_cpu_cycles: 1230196224 start_cycles: 3828266447 watchdog_time: 15000
Conditions
++ Seen after upgrade ASA 9.18.3 and above
++ ASA configured with Anyconnect + AAA Authentication + dynamic access policy
++ Client sending 1000s of blank spaces in Locality information in the DAP data.
\nendpoint.certificate.user["8"].subject_fulldn="CN=*.wbx2.com, L='", ' ' , "'"",
Workaround
++ Downgrade to the previous version
++ Eliminate the suspect hostscan data.
++ Disable the use of hostscan on ASA.
