3588048 - Infected with 11 at bufdlink trying to clean up worktable crashing server - SAP ASE

• ASE error log reports signal 11 at bufdlink trying to clean up a worktable:
  
  Address 0x0x00000000014f0f6d (bufdlink+0xcd), siginfo (code, address) = (1, 0x0x0000000000000018)
  Current process (0x213010a) infected with signal 11 (SIGSEGV)
  
  
• As the spid affected is holding a spinlock, ASE crashes:
  
  Spinlocks held by  kpid 34799882
  Spinlock default data cache at address 0x0000000148386d00 owned by 34799882
  
  
• Stack functions reported include:
  
  bufdlink
  bufpindirty
  bufdirty
  pg__truncateoam
  pg_free_extents
  pg__objdeall_process_alloc
  pg_ptndeall
  trunc_wktable
  LeWkTbl::truncWkTbl

SAP Adaptive Server Enterprise (ASE) 16.0 SP04

KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed