2869028 - Checkpoint blocked after error 834 State 3 - SAP ASE

• The GC HK (housekeeper) process hangs, preventing the syslogs space to be released
• ASE errorlog reports error 834 with state 3:

Error: 834, Severity: 20, State: 3
Illegal attempt to clean buffer: ....

• followed by a stack trace that includes the following functions:

buffree
bufunkeep_do_decrement
bufunkeep_cache
buf__elchousekeeping
buf_elcsearch
bufsearch_cache_getlatch
getpage_with_validation
bt__latchrootpage
bt__traverse
bt_delete
dol_ncdelete
dol_delete
row_delete

• or this stacktrace (this was originally logged as CR 816608 but found to be a duplicate of this issue)
  
  

  buffree
  bufunkeep_cache
  bufdbtlastlog
  log__newpage
  plc__flush
  xls_pre_alloc_numclrs
  log__change

Note: A complete example of the stack trace is available under Attachments

• SAP Adaptive Server Enterprise (ASE) 16.0
• SAP Adaptive Server Enterprise Cluster Edition (ASE CE) 16.0

Sybase, ASEServer, SAPASE, dataserver, CR819340, CR#819340, 819340, 821042, CR821042, CR 821042 , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-SYB-ASE-CE , ASE Cluster Edition (Standalone) , Bug Filed