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2072127 - Timeslice error when try to clean up a process and release a spinlock - SAP ASE

Symptom

  • Reporting multiple timeslices and kernel engine messages, e.g.

timeslice -1001, current process infected at 0xe5bfdf (ptn_unkeep+0x6f)

  • The timer errors, where ASE isn't able to clear the negative values look like this:

kernel  Warning: The internal timer is operational and has recovered from previous failure.
kernel  Warning: The internal timer is not progressing. If this message is generated multiple times, report  to Sybase Technical Support and restart the server (alarminterval=-739). 

  • These are also variations of the same problem:

kernel timeslice -1001, current process infected at 0x150a8b4 (atomic_try+0x2)

  • Stacktrace may include:

(null)
s_free
s_pop
s_cleanframe
clean_process
kill_proc
terminate_process
quitfn
flushtoeom


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Environment

  • SAP Adaptive Server Enterprise (ASE) 15.7
  • SAP Adaptive Server Enterprise (ASE) 16.0

Product

SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0

Keywords

spinlock, warning, atomic_try, time slice, internal, RDI, orphan locked spinlock , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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