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3075572 - Signal 11 in uwpredisconnect() holding spinlock kwt_spinlock - SAP ASE 16.0


  • ASE hits Signal 11 in the module uwpredisconnect():

    Current process (0x5ceb0126) infected with signal 11 (SIGSEGV)
    Address 0x0x000000000157cb1e (uwpredisconnect+0x55e), siginfo (code, address) = (1, 0x0x000000000000001c)

  • Stack trace includes functions (a full stack example is attached in file Full_stack_example.txt): 


  • ASE server goes down because the spid is holding Kernel->kwt->kwt_spinlock: 

    Spinlocks held by  kpid 1558905126

    Spinlock Kernel->kwt->kwt_spinlock at address 0x0000000147d79f80 owned by 1558905126 



  • SAP Adaptive Server Enterprise (ASE) 16.0
  • SAP Adaptive Server Enterprise (ASE) 16.0 for Business Warehouse


SAP Solution Manager 7.2


uwpredisconnect, parallel, parallelism, shutdown, CR#825172, CR825172, 825172, SEGV, segmentation, storage, access, violation, fault, segfault, kisignal, stacktrace,  registers , KBA , BW-SYS-DB-SYB , BW on Adaptive Server Enterprise , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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