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ORA-07445 [kxfpnid()+632] [SIGBUS] and Instance Crash with Parallel Execution (Doc ID 1505057.1)

Last updated on MARCH 27, 2014

Applies to:

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


The following symptoms were seen:

  1. The following error was seen in the alert log, and then PMON terminated the instance:
    ORA-07445: exception encountered: core dump [kxfpnid()+632] [SIGBUS] [ADDR:0x95] [PC:0x103AACCD8] [Invalid address alignment] []
  2. The value for parallel_max_servers was NOT explicitly set in the spfile or pfile.
  3. The LMON tracefile showed a value for parallel_max_servers > 3600 (3600 is the maximum allowed in 11.2).
  4. The call stack contained the following: 
    kxfpnid <- ksimdic <- kjfmact <- kjfcln <- ksbrdp <- opirip <- opidrv <- sou2o <- opimai_real <- ssthrdmain



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