Get ORA-7445 [Kcbsacc] When Semaphore Configuration is Missing (Doc ID 1257824.1)

Last updated on FEBRUARY 07, 2014

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1 and later
Information in this document applies to any platform.

Symptoms

Error in the alert.log:
ORA-07445: exception encountered: core dump [kcbsacc()+1996] [SIGSEGV] [ADDR:0x8] [PC:0x7D3B08C] [Address not mapped to object] []

Stack trace:
kcbsacc kcbs_simulate kcbgtcr ktrget2 qeilbk1 qeilsr qerixtFetch qertbFetchByRowID
qergsFetch opifch2 opiefn0 opipls opiodr rpidrus skgmstack rpiswu2 rpidrv psddr0
psdnal pevm_EXECC pfrinstr_EXECC pfrrun_no_tool pfrrun plsql_run peicnt kkxexe
opiexe opiall0 opikpr opiodr rpidrus skgmstack rpiswu2 kprball kkxsexr kkxsexe
pevm_icd_call_common pfrinstr_ICAL pfrrun_no_tool pfrrun plsql_run peicnt kkxexe
opiexe kpoal8 opiodr ttcpip opitsk opiino opiodr opidrv sou2o opimai_real main

Cause

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