RE: ORA-07445, "SIGSEGV", & "address"???

What patch level are you on?

We get those also but they don't shutdown our DB...This is a DW DB and the issue is a bug with star transformations....

ksedmp: internal or fatal error
ORA-07445: exception encountered: core dump [memcpy()+136] [SIGSEGV]
[unknown code] [0x800003FAC0080

000] [] []

Thanks!=20

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Schauss, Peter
Sent: Thursday, May 19, 2005 12:55 PM
To: cmarquez_at_collegeboard.org; oracle-l_at_freelists.org Subject: RE: ORA-07445, "SIGSEGV", & "address"???

Chris,

This usually means that some piece of code committed a bounds violation, trying to read from or write to memory which it did not own.

HTH, Peter Schauss

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Marquez, Chris
Sent: Thursday, May 19, 2005 11:39 AM
To: oracle-l_at_freelists.org
Subject: ORA-07445, "SIGSEGV", & "address"???

All,
I am about to open a TAR...painfully.
Had a database (server?) crash a 2AM.
Further sadness, the node/instance that crashed hung the other RAC node/instance...could not pull of the RAC reconfiguration...a whole other issue.
One crash leads to another crash/hang :o|)

I would like to get comments on the true meaning of "SIGBUS", "SIGSEGV", "...physical address", "...Address not mapped".

I have always believed these to be Oracle/OS memory related issues?

Thanks in advance,

Chris Marquez
Oracle DBA

Errors in file /o01/app/oracle/admin/orcl/bdump/orcl2_j001_22478.trc: ORA-07445: exception encountered: core dump [kcbgtcr()+10562] [SIGBUS]
[Non-existent physical address] [0x2C0AC00E] [] []
Thu May 19 02:00:08 2005
Errors in file /o01/app/oracle/admin/orcl/bdump/orcl2_diag_541.trc: ORA-07445: exception encountered: core dump [kghalf()+924] [SIGSEGV]
[Address not mapped to object] [0x4001281] [] []
Thu May 19 02:00:13 2005

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