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2614662 - Signal 11 in mem_pageallocate() - SAP ASE

Symptom

  • User processes terminate abruptly.
  • The ASE errorlog contains many "infected with signal 11" errors in the module mem_pageallocate() together with stack traces:

Current process (0x4e170715) infected with signal 11 (SIGSEGV)
Address 0x0x0000000000e29d85 (mem_pageallocate+0xd5)

  • The stack trace can vary and may include these, but also other functions:

mem_pageallocate
mem_getpages
memalloc

  Note: A sample of a complete stack trace is available under Attachments.

  • As a result the ASE server may hang and become unusable for client applications.


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Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7 and 16.0
  • SAP Adaptive Server Enterprise Cluster Edition (ASE CE) 15.7 and 16.0

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 15.7 Cluster Edition

Keywords

Sybase, ASEServer, SAPASE, dataserver, CR804809, CR#804809, 804809, SEGV, segmentation, storage, access, violation, fault, segfault, kisignal, stacktrace, registers, mem__pageallocate_this_engine, pre_aggview, mkrange,  CR814198,  CR#814198,  814198 , 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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