LI77288: CRASH IN SNA_V5ROUTER64
A fix is available
Closed as program error.
Crash occurs during VRN link activation rejection caused by misconfigured DNS.
Correct DNS configuration.
USERS AFFECTED: All using Enterprise Extender (EE). PROBLEM DESCRIPTION: CRASH INFORMATION:CPU 0 CSA F00000003005F780 at time of crash, error code for LEDs:70000000 pvthread+001700 STACK: [047C1E94]sna_v5router64:ncs_check_for_retry+000208 (F1000100653CA5D8,0100000000000001,F10001002F44E048) [047B5218]sna_v5router64:ncs_fsm_ls_ext+0005B0 (F10001003271AC20,F10001002F44E048) [047B2EA8]sna_v5router64:ncs_dlc_to_cs_signals+0001BC (F10001003271AC20,F10001002F44E048) [047B3B64]sna_v5router64:ncs_queue_handler+0000FC (F10001003271AC20,0001000000000001,F10001002F44E048) [046A6E70]sna_v5router64:nba_dispatch_input+000290 (F1000100321A8258,F10001002F44E048) [046A755C]sna_v5router64:nba_dispatch_process+0000C8 (F1000100321A8258,F10001002F44E048) [046A7D68]sna_v5router64:nba_scheduler+000210 () [04699F34]sna_v5router64:vpr_stream_lr_svc+0001A8 (F100020000522000) [0411207C]pse:sq_wrapper+00015C (??) [040FD358]pse:csq_run+000528 (??) [040FC008]pse:csq_lateral+0000BC (??, ??, ??) [041129F8]pse:scheduled_run+0000D0 () [001F6070]Netintr+0001A0 () [001F5E8C]netisr_thread+000014 () [0016BD2C]threadentry+000014 (??, ??, ??, ??) PROBLEM SUMMARY: The problem occurs when the following all occur: - DNS misconfiguration causes a VRN link activation to be rejected (CNCT_OUT RSP ERROR for @Dxxxxxx link in the DLC trace) - CS then frees internal memory used for this VRN link - CS frees memory back to the O/S from its memory cache (this does not happen every time) - the O/S memory manager clears this memory immediately. - CS then tries to access the memory just after it has been released.
Code has been corrected to prevent checking the retry logic for the dynamic link after it had failed to actviate.
Reported component name
CS FOR LINUX
Reported component ID
Last modified date
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fixed component name
CS FOR LINUX
Fixed component ID
Applicable component levels