ORA-7445 When Starting up 10g 32-bit Database with VLM Enabled (Doc ID 351218.1)

Last updated on MAY 28, 2008

Applies to:

Oracle Server - Enterprise Edition - Version: 10.1.0.4
Microsoft Windows Server 2003
10.1 (10.1.0.2.0 - 10.1.0.4.0)
10.2 (10.2.0.1.0 - 10.2.0.2.0)

Symptoms

The following errors occurred when attempting to start a 10.1.0.4 database with VLM (Very Large Memory) enabled using use_indirect_data_buffers=true. The 10.1.0.4 32-bit Oracle database was installed on 32-bit Windows 2003 using an AMD Opteron 64-bit chip:
.
ORA-7445: exception encountered: core dump [ACCESS_VIOLATION] [0x3506BAB] [][]
ORA-27103: internal error
OSD-28: additional error information
PMON: terminating instance due to error 27103
Instance terminated by PMON, pid = 4028

The following was set per <<Note:225349.1>>: Implementing Address Windowing Extensions (AWE) or VLM on Windows Platforms

- boot.ini has been modified to include /pae
.
- the OS user starting OracleService<SID> has priv "Lock Pages in Memory"
priv
.
- AWE_WINDOW_MEMORY registry param is not set (using default 1Gb);
consequently _DB_BLOCK_LRU_LATCHES is not set.
.
- init.ora:
db_block_size=8192
db_block_buffers = 131073
use_indirect_data_buffers = true

ORA-7445 trace file shows:

ksedmp: internal or fatal error
ORA-7445: exception encountered: core dump [ACCESS_VIOLATION] [0x3606E57] []
[] [] []
ORA-27103: internal error
OSD-28: additional error information
ORA-27103: internal error
OSD-28: additional error information
Current SQL statement for this session:
alter database open
.
Function List   (to Full stack)   (to Summary stack)
    VInfreq__ksepop kgepop kgesev VInfreq___PGOSF33 kgecxd slgei     
VInfreq__kgecss kcbvlc kslilcr ksl_cleanup ksepop kgepop       kgesev
VInfreq___PGOSF33 kgecxd slgei VInfreq__kgecss kcbvmap       VInfreq__kcbzib kcbgtcr kqlbebs kqlblfc adbdrv       opiexe opiosq0 kpooprx kpoal8 opiodr
ttcpip       opitsk opiino opiodr opidrv sou2o opimai     

Cause

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