2352929 - ASE hangs in commit with signal 11 at bufpindirty - SAP ASE

• ASE errorlog reports a signal 11 at address bufpindirty
• Or in some cases, signal 11 at smp_bufpredirty
• See attachment Full_Stack_Example.txt for full log entries

Current process (0x1bff013e) infected with signal 11 (SIGSEGV)
Address 0x0x0000000000e281fb (bufpindirty+0x36b)

• With buffer predirty warning and a stacktrace including functions

WARNING: 1 buffer was found in a predirty state during the termination of spid 3488 (Pss: 0x0x00000004b86ab8d8).

bufpindirty
plcblock__flush
xls_flush_plcqueue
plc__flush
xls_preflush
finishlog
xact__endxact
xact__commitxact
xact__commit_local
xact_commit

• As a result, new connections are not accepted and existing server processes (spids) seem to hang.
• Checking sysprocesses or sp_who (if still possible) shows (many) processes in COMMIT or ROLLBACK state.

800396, signal 11, CR800396, bufpindirty, plcblock__flush, commit, transaction , KBA , hung, running slow , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , Bug Filed