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2047018 - A stack trace with ulreleasespinlock: spinlock being freed improperly - SAP ASE

Symptom

  • The following error is reported in the ASE error log:

kernel ulreleasespinlock: spinlock being freed improperly

  • Stacktrace is reported including the following functions:

keipanic()
ulreleasespinlock()
ksfreesocket()
soc_nclose()
drop_connection()
kill_proc()
terminate_process()
quitfn()

  • ASE may panic and shutdown with the following message due to previous stack:

kernel ueshutdown: exiting

  • A stacktrace may also be reported when running monitoring command such as sp_sysmon

strlen()
plsetmonitordesc()
plmonitor_setcurrent()
dbcc_monitor()

  • ASE may panic and shutdown due to previous stack

ueshutdown: exiting


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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

CR759377, CR#759377, 759377, shutdown, crash, connection disconnects, engines executing in parallel, spinmon, third-party monitoring tools, disable monitoring tools , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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