PMON crashing with: ORA-07445: exception encountered: CORE Dump [kfiofib_detach()+84] (Doc ID 744619.1)

Last updated on OCTOBER 31, 2016

Applies to:

Oracle Server - Enterprise Edition - Version: 10.2.0.4 to 10.2.0.4
This problem can occur on any platform.

Symptoms

The core dump is shown in the alert.log as messages similar to:

ORA-07445: exception encountered: CORE Dump [kfiofib_detach()+84] [SIGSEGV]
[Address not mapped to object] [0x000000001] [] []
ORA-00602: internal programming exception


Looking at the call stack in the pmon trace file shows:

ksedst()+31          call     ksedst1()            000000000 ? 000000001 ?
                                                   2AC3D5E44D50 ? 
2AC3D5E44DB0 ?
                                                   2AC3D5E44CF0 ? 000000000 ?
ksedmp()+610         call     ksedst()             000000000 ? 000000001 ?
                                                   2AC3D5E44D50 ? 
2AC3D5E44DB0 ?
                                                   2AC3D5E44CF0 ? 000000000 ?
ssexhd()+629         call     ksedmp()             000000003 ? 000000001 ?
                                                   2AC3D5E44D50 ? 
2AC3D5E44DB0 ?
                                                   2AC3D5E44CF0 ? 000000000 ?
__funlockfile()+80   call     ssexhd()             00000000B ? 2AC3D5E45D70 ?
                                                   2AC3D5E45C40 ? 
2AC3D5E44DB0 ?
                                                   2AC3D5E44CF0 ? 000000000 ?
kfiofib_detach()+84  signal   __funlockfile()      4805CC2B8 ? 000000000 ?
                                                   000000000 ? 000000000 ?
                                                   000000002 ? 000000000 ?
kfioUnidentify()+19  call     kfiofib_detach()     4805CC2B8 ? 000000000 ?
2                                                  000000000 ? 000000000 ?
                                                   000000002 ? 000000000 ?
ksfdfids()+621       call     kfioUnidentify()     4805CC2B8 ? 000000003 ?
                                                   4805CC260 ? 000000000 ?
                                                   000000002 ? 000000000 ?
kssxdl()+421         call     ksfdfids()           4805CC260 ? 000000003 ?
                                                   4805CC260 ? 000000000 ?
                                                   000000002 ? 000000000 ?
kssdch()+2147        call     kssxdl()             4805CC260 ? 000000003 ?
                                                   4805CC260 ? 000000000 ?
                                                   000000002 ? 000000000 ?
ksudlp()+467         call     kssdch()             4805CC270 ? 000000003 ?
                                                   4805CC260 ? 000000028 ?
                                                   000000002 ? 4000000EA ?
kssxdl()+421         call     ksudlp()             49C66CE60 ? 000000003 ?
                                                   4805CC260 ? 000000028 ?
                                                   000000002 ? 4000000EA ?
ksuxdl()+211         call     kssxdl()             49C66CE60 ? 000000003 ?
                                                   4805CC260 ? 000000028 ?
                                                   000000002 ? 4000000EA ?
ksuxda()+308         call     ksuxdl()             49C66CE60 ? 000000000 ?
                                                   4805CC260 ? 000000028 ?
                                                   000000002 ? 4000000EA ?
ksucln()+1390        call     ksuxda()             49C66CE60 ? 000000000 ?
                                                   4805CC260 ? 000000028 ?
                                                   000000002 ? 4000000EA ?
ksbrdp()+794         call     ksucln()             060008100 ? 000000000 ?
                                                   0688B0B14 ? 000000028 ?
                                                   000000002 ? 4000000EA ?

Cause

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