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3770417 - The CtlibController terminates with SIGSEGV in realfree() while controller remains in Online state, followed by timeslice errors on __lwp_park - SAP ASE

Symptom

An SAP ASE server may experience a crash of the CtlibController thread due to SIGSEGV (signal 11).

The ASE errorlog reports:

Current process infected with signal 11 (SIGSEGV)
Current Process is running on a Non-Engine Thread

pc: realfree+0x174
pc: _free_unlocked+0xfc
pc: free+0x4c
pc: comn_delete_event+0x4c
pc: sybnet_dealloc_ep+0x188
pc: sybnet__do_poll+0x3a4
pc: sybnet__async_poll+0x154
pc: thread_create_handler+0xb8

Run to completion task 'CtlibController' exiting.


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Environment

  • SAP Adaptive Server Enterprise (ASE) 16.0
  • Solaris/SPARC environment

Product

SAP Adaptive Server Enterprise 16.0

Keywords

CtlibController ,Ct-Lib Controller Manager, realfree, comn_delete_event, sybnet_dealloc_ep, sybnet__do_poll, __lwp_park, iocmgr, CR 832208, CR 831791, CR 831793 , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

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