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ORA-07445: exception encountered: core dump [strlen()+11] (Doc ID 1062673.1)

Last updated on DECEMBER 01, 2019

Applies to:

Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Schema Service - Version N/A and later
Information in this document applies to any platform.
***Checked for relevance on 29-Apr-2013***



Symptoms

NOTE: In the images and/or the document content below, the user information and environment data used represents fictitious data from the Oracle sample schema(s),
Public Documentation delivered with an Oracle database product or other training material. Any similarity to actual environments, actual persons, living or dead, is
purely coincidental and not intended in any manner.

For the purposes of this document, the following fictitious environment is used as an example to describe the procedure:

Database Name: ORCL

***********

1. alert log reported:

Tue Mar 10 00:44:23 2009
Errors in file /<path>/orcl/udump/orcl_ora_21809.trc:
ORA-07445: exception encountered: core dump [strlen()+11] [SIGSEGV] [Address
not mapped to object] [0x145] [] []
Tue Mar 10 00:44:24 2009
Trace dumping is performing id=[cdmp_20090310004424]

2. Trace file orcl_ora_21809.trc reported:

*** 2009-03-10 00:44:23.542
*** ACTION NAME:(0000069 STARTED16) 2009-03-10 00:44:23.542
*** MODULE NAME:(backup archivelog) 2009-03-10 00:44:23.542
*** SERVICE NAME:(SYS$USERS) 2009-03-10 00:44:23.542
*** SESSION ID:(124.727) 2009-03-10 00:44:23.542
SKGFQ OSD: Error in function sbtwrite2 on line 1051
SKGFQ OSD: Look for SBT Trace messages in file
/<path>/orcl/udump/sbtio.log
Exception signal: 11 (SIGSEGV), code: 1 (Address not mapped to object), addr:
0x145, PC: [0x40c37d1b, strlen()+11]
Registers:
%eax: 0x00000145 %ebx: 0x40ce6f0c %ecx: 0x00000001
%edx: 0x00001301 %edi: 0x00000145 %esi: 0x00000000
%esp: 0xbfff4a50 %ebp: 0xbfff504c %eip: 0x40c37d1b
%efl: 0x00010202
strlen()+0 (0x40c37d10) mov 0x4(%esp),%ecx
strlen()+4 (0x40c37d14) mov %ecx,%eax
strlen()+6 (0x40c37d16) and $3,%ecx
strlen()+9 (0x40c37d19) je 0x40c37d43
> strlen()+11 (0x40c37d1b) cmpb %ch,(%eax)
strlen()+13 (0x40c37d1d) jz 0x40c37dba
strlen()+19 (0x40c37d23) inc %eax
strlen()+20 (0x40c37d24) xor $3,%ecx
strlen()+23 (0x40c37d27) je 0x40c37d43
*** 2009-03-10 00:44:23.543
ksedmp: internal or fatal error
ORA-07445: exception encountered: core dump [strlen()+11] [SIGSEGV] [Address no
t mapped to object] [0x145] [] []
...............
Call Stack Trace
-------------
ksedst ksedmp ssexhd strlen vsprintf ZN9RMANTrace10trPr intBdyEPcz sbtwrite2 intBdyEPcz skgfwrt ksfq_go ksfq_aio ksfqwr krbb1qwr krbbpc krbibpc pevm_icd_call_commo pfrinstr_ICAL pfrrun_no_tool pfrrun plsql_run pricar pr
icbr prient2 prient kkxrpc kporpc opiodr ttcpip opitsk opiino opiodr opidrv sou2o opimai_real

3. Process state from the trace file:

O/S info: user: oracle, term: , ospid: 21354, machine: <machine name>
program: rman@<host>-03 (TNS V1-V3)
client info: rman channel=t3
application name: backup archivelog, hash value=3967580964
action name: 0000069 STARTED16, hash value=790837142
waiting for 'Backup: sbtwrite2' blocking sess=0x(nil) seq=12621 wait_time=0
seconds since wait started=0
=0, =0, =0
Dumping Session Wait History
for 'Backup: sbterror' count=1 wait_time=1
=0, =0, =0
for 'Backup: sbtwrite2' count=1 wait_time=58201239
=0, =0, =0
for 'RMAN backup & recovery I/O' count=1 wait_time=965
count=1, intr=100, timeout=ffffffff
for 'Backup: sbtwrite2' count=1 wait_time=9392
=0, =0, =0
for 'Backup: sbtwrite2' count=1 wait_time=24415
=0, =0, =0
for 'Backup: sbtwrite2' count=1 wait_time=2966
=0, =0, =0
for 'Backup: sbtwrite2' count=1 wait_time=2378
=0, =0, =0
for 'Backup: sbtwrite2' count=1 wait_time=2031
=0, =0, =0
for 'Backup: sbtwrite2' count=1 wait_time=3242
=0, =0, =0
for 'Backup: sbtwrite2' count=1 wait_time=2155
=0, =0, =0

Cause

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In this Document
Symptoms
Cause
Solution

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