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

  • From: "cichomitiko gmail" <cichomitiko@xxxxxxxxx>
  • To: <cmarquez@xxxxxxxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 20 May 2005 13:34:00 +0200

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@xxxxxxx>
To: <cmarquez@xxxxxxxxxxxxxxxx>; <oracle-l@xxxxxxxxxxxxx>
Sent: Thursday, May 19, 2005 9:54 PM
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@xxxxxxxxxxxxx
> [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Marquez, Chris
> Sent: Thursday, May 19, 2005 11:39 AM
> To: oracle-l@xxxxxxxxxxxxx
> 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
> 
> --
> //www.freelists.org/webpage/oracle-l
> --
> //www.freelists.org/webpage/oracle-l
--
//www.freelists.org/webpage/oracle-l

Other related posts:

  1. Home
  2. oracle-l
  3. Archive
  4. 05-2005