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2896359 - Signal 11 in des_checkpoint() brings ASE down - SAP ASE 16.0

Symptom

  • A client connection is unexpectedly terminated.
  • An "Infected with signal 11" error in the module des_checkpoint() together with a stack trace is reported in the ASE errorlog:

Current process (0x53002a) infected with signal 11 (SIGSEGV)
Address 0x0x0000000001dcde7e (des_checkpoint+0x52e), siginfo (code, address) = (1, 0x0xfffffffffffffdd2)

  • The stack trace includes the following functions:

des_checkpoint
checkpoint

  Note: A complete stack trace is available under Attachments

  • The terminated process does not release a Dbtable->dbt_defpipebufgpspin spinlock that causes an ASE server shutdown.

Spinlocks held by  kpid 5439530
Spinlock Dbtable->dbt_defpipebufgpspin at address 0x0000000149066b00 owned by 5439530


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Environment

SAP Adaptive Server Enterprise (ASE)  16.0

Product

SAP Adaptive Server Enterprise 16.0

Keywords

Sybase, infected, signal, SEGV, SIGSEGV, segment violation, storage access violation, kisignal, CR821031, 821031, CR#821031, DES , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-SYB-ASE-CE , ASE Cluster Edition (Standalone) , Bug Filed

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