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

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

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

2005-05-20 - By cichomitiko gmail

Reply: 1 2 3 4 5 6

man siginfo:
SIGSEGV SEGV_MAPERR address not mapped to object
SEGV_ACCERR invalid permissions for mapped
object

SIGBUS BUS_ADRALN invalid address alignment
BUS_ADRERR non-existent physical address

HTH
Dimitre

-- -- Original Message -- --
From: "Schauss, Peter" <peter.schauss@(protected)>
To: <cmarquez@(protected)>; <oracle-l@(protected)>
Sent: Thursday, May 19, 2005 9:54 PM
Subject: RE: ORA-07445 (See ORA-07445.ora-code.com), "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@(protected)
> [mailto:oracle-l-bounce@(protected)] On Behalf Of Marquez, Chris
> Sent: Thursday, May 19, 2005 11:39 AM
> To: oracle-l@(protected)
> Subject: ORA-07445 (See ORA-07445.ora-code.com), "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 (See ORA-07445.ora-code.com): 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 (See ORA-07445.ora-code.com): exception encountered: core dump [kghalf()+924] [SIGSEGV]
> [Address not mapped to object] [0x4001281] [] []
> Thu May 19 02:00:13 2005
>
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