2708738 - Signal 11 in np__connect_cb() from CtlibController - SAP ASE

• The value of configurable parameter 'cis idle connection timeout' is larger than 0.  
• There exists idle CIS|OMNI connections.
• Sequence of three events in ASE errorlog:
    
1. Process with spid 9 (HK CHORES) reported ct_cancel and ct_close failure messages while it tried to terminate idle cis connections:
    
       RDESDISC, spid 1510 rdesp 0x7fc8913c4df0 rd_connection 0x7fc77294c8c0: ct_cancel(CS_CANCEL_ALL) failed.
       usctclose(CS_FORCE_CLOSE) returns CS_FAIL
       RDESDISC, spid 1510 rdesp 0x7fc8913c4df0 rd_connection 0x65b9880: ct_close(CS_FORCE_CLOSE) failed.
    
2. Signal 11 (SIGSEGV) in np__connect_cb() with a stack trace:  
   

      Current process (0x0) infected with signal 11 (SIGSEGV)
      Address 0x0x00000000020044a2 (np__connect_cb+0x22), siginfo (code, address) = (1, 0x0x0000000000000090) 

   The stack trace includes the following functions:
    
      kisignal
      np__connect_cb
      sybnet__async_poll
   
   Note: A complete stack trace is available under Attachments.
    
3. Run to completion task 'CtlibController' exiting
4. Internal timer message:
    
      Warning: The internal timer is not progressing. If this message is generated multiple times, report to SAP Technical Support and restart the server (alarminterval=-681).

• SAP Adaptive Server Enterprise (ASE) 15.7
• SAP Adaptive Server Enterprise (ASE) 16.0 

'cis idle connection timeout', ct_cancel, CR815813, 815813, CR#815813, CR813580, 813580, CR#813580, CIS, OMNI, sybnet__async_poll, CS_CANCEL_ALL, CS_FORCE_CLOSE , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem