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2686240 - Signal 11 in module yylex() - SAP ASE 16.0

Symptom

  • An "infected with signal 11" error with the address in the module yylex() appears in the ASE errorlog:

kernel Current process (0x6de1014e) infected with signal 11 (SIGSEGV)
kernel Address 0x00000000019c9404 (yylex+0xaa34), siginfo (code, address) = (1, 0x0000002000000008)                                  

  • A user process (spid) which caused the signal 11 is reported as a zombie task in the ASE errorlog:

kernel  task 1843462478 is zombie

  • ASE unexpectedly shuts down.
  • The process was executing a stored procedure that inserts into a temporary table from a temporary table within execute immediate.
  • A stack trace following the error may include functions:

yylex
yyparse
sqlpars
internal_sql
s_execute

   Note: A complete stack trace is available under Attachments.


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Environment

  • SAP Adaptive Server Enterprise (ASE) 16.0 SP02 PL04 to PL07
  • SAP Adaptive Server Enterprise (ASE) 16.0 SP03 pre-PL07

Product

SAP Adaptive Server Enterprise 16.0

Keywords

kisignal, stacktrace, registers, crash, crashes, ueshutdown,  CR816352,  CR#816352,  816352, SEGV, segmentation, storage, access, violation, fault, segfault , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-SYB-ASE-CE , ASE Cluster Edition (Standalone) , Bug Filed

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