Symptom
ASE crashed with "infected with signal 11 (SIGSEGV)" and the following stacktrace reported in the errorlog:
ct__tds_get_bytes
ct__tds_readall
com__async_runstack
com__async_poll_state
ct_poll
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Environment
SAP Adaptive Server Enterprise (ASE) 15.0.3 or below releases
Product
Keywords
crash, CIS, ct_poll, ct__tds_get_bytes, scheduler, cis idle connection timeout, CR#557398, CR557398, 557398, CR#614227, CR614227, 614227
CR#557398 CIS: scheduler SIGSEGV at ct_poll
ASE may crash unrecoverably in a multi-connection environment at ct_poll on the scheduler thread when the configuration 'cis idle connection timeout' is set to a non-zero value.
The bug can also manifest itself with a Signal 11 in ct__tds_get_bytes module, as seen in the "Symptom" section (above) and logged as the following duplicate CR:
CR#614227 infected with signal 11 (SIGSEGV) in ct__tds_get_bytes
Scheduler gets SIGSEGV in ct__tds_get_bytes after user process also gets SIGSEGV in ct__tds_get_bytes. , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem
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