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3015981 - ASE hangs due to infinite looping with pg__allocate_syslogs_extent on stack trace - SAP ASE

Symptom

ASE server has a single engine thread configured. In some periods, ASE hangs without an error.

The stack trace reported on memory dump (manual) reports the following functions:

=====

kpsuspend
upyield
pg__allocate_syslogs_extent
pg_allocate_syslogs
log__newpage
plcblock__flush
plc__flush
xls_pre_alloc_numclrs
dol_logdml
....
....

=====

Parameter 'user log cache queue size' is enabled.


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Environment

SAP ASE 16.0 SP03 PL08

Product

SAP Adaptive Server Enterprise 16.0

Keywords

single engine hang infinite loop looping pg__allocate_syslogs_extent pg_allocate_syslogs log__newpage plcblock__flush plc__flush  CR 824041 CR824041 , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed

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