3064651 - Signal 11 in ubpfcleanup() or in alt__build_heap() - SAP ASE 16.0

• ASE errorlog reports an "Infected with signal 11" error in the function ubpfcleanup() with a stack trace:
  
  Current process (0x112105b2) infected with signal 11 (SIGSEGV)
  Address 0x0x000000000221f46c (ubpfcleanup+0x3c), siginfo (code, address) = (1, 0x(nil))
  
  
• The stack trace includes the following functions:
  
  ubpfcleanup
  pss__release
  pss_unkeep
  terminate_process
  quitfn
  usrfill

• Another manifestation of this issue shows stack strace similar to 

          alt__build_heap
          ubpfcleanup
          conn_hdlr_err_cleanup

SAP Adaptive Server Enterprise (ASE) 16.0

CR 824838, CR#824838, 824838, SEGV, segmentation, storage, access, violation, fault, segfault, kisignal, stacktrace, registers, alt__build_heap, ubpfcleanup , KBA , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem