2869968 - Signal 11 in LeSendRow::sendRowToClient() on AIX - SAP ASE

• On systems running SAP applications on SAP ASE on AIX, client connections end abruptly or the ASE server shuts down completely.
  
  
• "Infected with signal 11" errors in LeSendRow::sendRowToClient() or send_done() with stack traces are reported in the ASE errorlog, for example:
  
  

Current process (0x6457051e) infected with signal 11 (SIGSEGV) 
Address 0x0000000102424de8 (LeSendRow::sendRowToClient(pss*,unsigned+0x90), siginfo (code, address) = (50, 0x0000000075e66770)

Current process (0x1b990190) infected with signal 11 (SIGSEGV)
Address 0x000000010242f208 (send_done+0xa8), siginfo (code, address) = (50, 0x0000000068e68620)

• The stacktraces in the ASE errorlog contain these functions (respectively):  

LeSendRow::_sendColsToClient
LeSendRow::sendRowToClient
LeEmitSndOp::_LeEoRouteResults
LeEmitSndOp::_LeOpNext
LePlanNext

or

send_done
senddone
s_senddone 

  Note: An example of a complete stack trace is available under Attachments.

• The affected query may be of the following type:
  
  
  

  SELECT * FROM "TAB" WHERE "MANDT" = ? AND "COL1" = ? AND "COL2" = ? AND "COL3" >= ? ORDER BY "MANDT" ,"COL1" ,"COL2" ,"COL3"

• The signal 11 may at times be followed by an ASE crash due to subsequent failure in senderror() and following exception:
  
  FATAL UNHANDLED EXCEPTION: signal 11 hit while handling a previously hit signal. The server cannot continue and will shut down.
  
  

• SAP Adaptive Server Enterprise (ASE) 16.0 for Business Suite
• AIX

"signal 11", stacktrace, LeSendRow::sendRowToClient, senderror, senddone, send_done, s_senddone, crash,  826826, CR826826, CR#826826 , KBA , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , BW-SYS-DB-SYB , BW on Adaptive Server Enterprise , Bug Filed