SAP Knowledge Base Article - Preview

2569150 - Signal 11 at ptn_pdes_discard_all - SAP ASE


  • ASE errorlog reports an "infected with signal 11" error in the module ptn_pdes_discard_all() or a storage access violation together with a stack trace:

    • on Unix/Linux:

      Current process (...) infected with signal 11 (SIGSEGV)
      Address 0x0x0000000001b7df3a (ptn_pdes_discard_all+0xa)

    • on Windows:

      Adaptive Server Enterprise system exception (0xc0000005) generated by a storage access violation.
  • The stack trace includes the following modules:


  Note:  Samples of complete stack traces are available under Attachments.

  • The signal 11 error is preceded by the message :

    Increase the config parameter 'number of open indexes' to avoid descriptor reuse. Reuse may result in performance degradation.

  • This may be followed by Error 8424 on ASE systems running custom, non-SAP applications:

Error: 8424, Severity: 17, State: 1
Cannot find an available index descriptor for an index. Increase the value of 'number of open indexes'. If sp_configure fails due to lack of index descriptors, edit the configuration file and restart the server.



  • SAP Adaptive Server Enterprise (ASE) 16.0
  • SAP Adaptive Server Enterprise (ASE) 16.0 fo Business Suite


SAP Adaptive Server Enterprise 16.0


"open indexes", SYBASE, CR805775, CR#805775, CR805775, SEGV, segmentation, storage, access, violation, fault, segfault, kisignal, stacktrace,  registers, metadata, 822205, CR822205, CR#822205, des, scavenge , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , Bug Filed

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.