3179925 - Infected with 11 in ptn__setup_pdeslookupopt() may occur on a partitioned table - SAP ASE

• ASE errorlog reports "Current process infected with signal 11 (SIGSEGV)" at address ptn__setup_pdeslookupopt
• When a client is inserting a row into a partitioned table and another client is running alter table drop partition command on the same table at the same time
• The infected user task held the Pdes Chain Spinlock, so ASE automatically shuts down
• Errorlog entries include:
  
  Current process (0xXXXXXXXX) infected with signal 11 (SIGSEGV)
  Address 0x0x0000000001af0cf2 (ptn__setup_pdeslookupopt+0x2b2) ...
  ...
  
  Spinlock Pdes Chain Spinlocks at address 0x0000000145808e80 owned by <kpid number>

• The error may be accompanied by a stacktrace referencing the functions:
  
  ptn__setup_pdeslookupopt
  ptn__get_pdes
  ptn_rowcopy
  srch_get_idxptn
  dol_insert
  ins_insert
  insert_all

SAP Adaptive Server Enterprise (ASE) 16.0

826387, CR#826387, CR826387, segmentation violation, registers, storage, access , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem