ORA-07445: Exception Encountered: Core Dump [lnxsgn()+26] [SIGSEGV] During Query Execution

(Doc ID 2408029.1)

Last updated on JUNE 13, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Symptoms

ORA-07445: exception encountered: core dump [lnxsgn()+26] [SIGSEGV] [ADDR:0x7F0110E1E36B] [PC:0x3737AFA] [Invalid permissions for mapped object] []

Current SQL Statement for this session


SELECT.....................

Stack:
 lnxsgn <- ldxftdi <- evadnj
       <- evaopn2 <- evaopn2 <- evaopn2 <- evareo <- expepr
        <- evaior <- expeal <- qertbFetchByRowID <- qerjotFetch <- qerjotFetch
         <- qerjoFetch <- qerjotFetch <- qerjotFetch <- qerjoFetch <- qerjoFetch
          <- qerjotFetch <- qerjotFetch <- qerjotFetch <- qerflFetchOutside <- qeruaFetch
           <- opifch2 <- opifch <- opiodr <- ttcpip <- opitsk
            <- opiino <- opiodr <- opidrv <- sou2o <- opimai_real
             <- ssthrdmain <- main <- libc_start_main <- start <-

Changes

 optimizer_features_enable changed from 12.2.0.1 to 11.2.0.4

Cause

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