unable to attach to shared memory segment

[j***@intra.net.gt]

Hi, I'm having a problem with my oracle installation in a x86_64 architecture.
Whenever I try to log in with sqlplus with the system user "oracle" and
database admin "sys" I can do so perfectly but if I want to use sqlplus with
another system's user like for example "oracleuser" and a user created in
oracle I get:

ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux-x86_64 Error: 13: Permission denied

I have in this user's environmental variables:
ORACLE_SID=name_of_my_database
ORACLE_HOME=/opt/oracle/product/9ir2
ORACLE_BASE=/opt/oracle

Plus I have him associated to the "dba" group.

Odd thing is that I can log in using enterprise manager console with this user,
I just can't log in using sqlplus. Can someone help me?

Jorge

----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

[Martin Klier]

Hi Jorge,

do you use SLES9? Which kernel version do you use?

Further try to set

"vm.disable_cap_mlock = 1"

in /etc/sysctl.conf and invoke the change with "sysctl -p".

Post by j***@intra.net.gt
Hi, I'm having a problem with my oracle installation in a x86_64
architecture. Whenever I try to log in with sqlplus with the system user
"oracle" and database admin "sys" I can do so perfectly but if I want to
use sqlplus with another system's user like for example "oracleuser" and a
ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux-x86_64 Error: 13: Permission denied
ORACLE_SID=name_of_my_database
ORACLE_HOME=/opt/oracle/product/9ir2
ORACLE_BASE=/opt/oracle
Plus I have him associated to the "dba" group.
Odd thing is that I can log in using enterprise manager console with this
user, I just can't log in using sqlplus. Can someone help me?
Jorge
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

--
Mit freundlichen Grüßen

i.A. Martin Klier
Systemadministration / Datenbanken
-----------------------------------------------------------------
A.T.U Auto-Teile-Unger
Handels GmbH & Co. KG
Dr.-Kilian-Straße 4
D-92637 Weiden i. d. OPf.

[j***@intra.net.gt]

Hi Martin, thanks for the advice, I am using SLES9 with kernel 2.6.5-7.244-smp I
know about the caps lock issue and tried the modification you sent me but still
getting the same error:

***@myserver:~> sqlplus
Enter user-name: oracle1
Enter password:
ERROR:
ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux-x86_64 Error: 13: Permission denied

***@myserver:~> env | grep ORACLE
ORACLE_SID=the_right_sid
ORACLE_BASE=/opt/oracle
ORACLE_HOME=/opt/oracle/product/9ir2

But still getting that error, any more ideas?

Thanks

Jorge

Post by Martin Klier
Hi Jorge,
do you use SLES9? Which kernel version do you use?
Further try to set
"vm.disable_cap_mlock = 1"
in /etc/sysctl.conf and invoke the change with "sysctl -p".

Post by j***@intra.net.gt
Hi, I'm having a problem with my oracle installation in a x86_64
architecture. Whenever I try to log in with sqlplus with the system user
"oracle" and database admin "sys" I can do so perfectly but if I want to
use sqlplus with another system's user like for example "oracleuser" and a
ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux-x86_64 Error: 13: Permission denied
ORACLE_SID=name_of_my_database
ORACLE_HOME=/opt/oracle/product/9ir2
ORACLE_BASE=/opt/oracle
Plus I have him associated to the "dba" group.
Odd thing is that I can log in using enterprise manager console with this
user, I just can't log in using sqlplus. Can someone help me?
Jorge
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

--
Mit freundlichen Grüßen
i.A. Martin Klier
Systemadministration / Datenbanken
-----------------------------------------------------------------
A.T.U Auto-Teile-Unger
Handels GmbH & Co. KG
Dr.-Kilian-Straße 4
D-92637 Weiden i. d. OPf.

--
d-_-b \|/
0-0
---oOo-(_)-oOo---

----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

[Werner Flamme]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Jorge,

at SAP I find:

- ---snip---
Check to see whether the "oracle" file exists on $ORACLE_HOME/bin, has a
size other than 0 and has the "-rwsr-s--x" authorizations.The owner must be
ora<sid>. The group is dba.

If the file is empty, you can create it again by relinking the software [...].

You can assign authorizations as well as the owner/group as follows:

chmod 6751 oracle

chown ora<sid> oracle

chgrp dba oracle

You should also check the authorization of the $ORACLE_HOME/bin directory.
This should be at "drwxr-xr-x".

Continue to ensure that the file system containing $ORACLE_HOME/bin
supports s-bit. The system must not be set to NOSUID.

Restart the system after the Oracle adjustments.If an error such as
ORA-27121 continues to occur after you set the s-bit, it may be caused by
hanging shared memories or semaphores that are assigned to the user under
whose name the Oracle database was mistakenly started until now.You can
correct this situation using tools such as ipcs/ipcrm or by rebooting.
- ---pins---

Replace ora<sid> with the name of the system user under whose account
oracle was installed, and check the files. ;-)

HTH
Werner

Post by j***@intra.net.gt
Hi Martin, thanks for the advice, I am using SLES9 with kernel 2.6.5-7.244-smp I
know about the caps lock issue and tried the modification you sent me but still
Enter user-name: oracle1
ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux-x86_64 Error: 13: Permission denied
ORACLE_SID=the_right_sid
ORACLE_BASE=/opt/oracle
ORACLE_HOME=/opt/oracle/product/9ir2
But still getting that error, any more ideas?
Thanks
Jorge

Post by Martin Klier
Hi Jorge,
do you use SLES9? Which kernel version do you use?
Further try to set
"vm.disable_cap_mlock = 1"
in /etc/sysctl.conf and invoke the change with "sysctl -p".

Post by j***@intra.net.gt
Hi, I'm having a problem with my oracle installation in a x86_64
architecture. Whenever I try to log in with sqlplus with the system user
"oracle" and database admin "sys" I can do so perfectly but if I want to
use sqlplus with another system's user like for example "oracleuser" and a
ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux-x86_64 Error: 13: Permission denied
ORACLE_SID=name_of_my_database
ORACLE_HOME=/opt/oracle/product/9ir2
ORACLE_BASE=/opt/oracle
Plus I have him associated to the "dba" group.
Odd thing is that I can log in using enterprise manager console with this
user, I just can't log in using sqlplus. Can someone help me?
Jorge
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

--
Mit freundlichen Grüßen
i.A. Martin Klier
Systemadministration / Datenbanken
-----------------------------------------------------------------
A.T.U Auto-Teile-Unger
Handels GmbH & Co. KG
Dr.-Kilian-Straße 4
D-92637 Weiden i. d. OPf.

--
d-_-b \|/
0-0
---oOo-(_)-oOo---
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

- --
Werner Flamme, Abt. WKDV
UFZ Umweltforschungszentrum Leipzig-Halle GmbH,
Permoserstr. 15 - 04318 Leipzig
Tel.: [phone] - Fax [phone]
http://www.ufz.de - eMail: ***@ufz.de




-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFEFvQFk33Krq8b42MRAqG6AJ93BsP0MDicCPc59R5prEaIqnZeQwCfYRcM
/wPmzqd/q+hEJcsmx3GiAF0=
=qM8f
-----END PGP SIGNATURE-----

[j***@intra.net.gt]

Thank you very much Werner and Martin, the key was in $ORACLE_HOME/bin/oracle
permissions, I left it with "-rwsr-s--x" and it worked perfectly. I never
changed this before in other oracle installations with SLES9 and x86
architecture, maybe the installation process for x86_64 is different... or the
patchset...

Well anyways, thanks a lot!

Jorge

Post by Werner Flamme
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Jorge,
- ---snip---
Check to see whether the "oracle" file exists on $ORACLE_HOME/bin, has a
size other than 0 and has the "-rwsr-s--x" authorizations.The owner must be
ora<sid>. The group is dba.
If the file is empty, you can create it again by relinking the software [...].
chmod 6751 oracle
chown ora<sid> oracle
chgrp dba oracle
You should also check the authorization of the $ORACLE_HOME/bin directory.
This should be at "drwxr-xr-x".
Continue to ensure that the file system containing $ORACLE_HOME/bin
supports s-bit. The system must not be set to NOSUID.
Restart the system after the Oracle adjustments.If an error such as
ORA-27121 continues to occur after you set the s-bit, it may be caused by
hanging shared memories or semaphores that are assigned to the user under
whose name the Oracle database was mistakenly started until now.You can
correct this situation using tools such as ipcs/ipcrm or by rebooting.
- ---pins---
Replace ora<sid> with the name of the system user under whose account
oracle was installed, and check the files. ;-)
HTH
Werner

Post by j***@intra.net.gt
Hi Martin, thanks for the advice, I am using SLES9 with kernel

2.6.5-7.244-smp I

Post by j***@intra.net.gt
know about the caps lock issue and tried the modification you sent me but

still

Post by j***@intra.net.gt
Enter user-name: oracle1
ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux-x86_64 Error: 13: Permission denied
ORACLE_SID=the_right_sid
ORACLE_BASE=/opt/oracle
ORACLE_HOME=/opt/oracle/product/9ir2
But still getting that error, any more ideas?
Thanks
Jorge

Post by Martin Klier
Hi Jorge,
do you use SLES9? Which kernel version do you use?
Further try to set
"vm.disable_cap_mlock = 1"
in /etc/sysctl.conf and invoke the change with "sysctl -p".

Post by j***@intra.net.gt
Hi, I'm having a problem with my oracle installation in a x86_64
architecture. Whenever I try to log in with sqlplus with the system user
"oracle" and database admin "sys" I can do so perfectly but if I want to
use sqlplus with another system's user like for example "oracleuser" and

a

Post by j***@intra.net.gt

Post by Martin Klier

Post by j***@intra.net.gt
ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux-x86_64 Error: 13: Permission denied
ORACLE_SID=name_of_my_database
ORACLE_HOME=/opt/oracle/product/9ir2
ORACLE_BASE=/opt/oracle
Plus I have him associated to the "dba" group.
Odd thing is that I can log in using enterprise manager console with this
user, I just can't log in using sqlplus. Can someone help me?
Jorge
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

--
Mit freundlichen Grüßen
i.A. Martin Klier
Systemadministration / Datenbanken
-----------------------------------------------------------------
A.T.U Auto-Teile-Unger
Handels GmbH & Co. KG
Dr.-Kilian-Straße 4
D-92637 Weiden i. d. OPf.

--
d-_-b \|/
0-0
---oOo-(_)-oOo---
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

- --
Werner Flamme, Abt. WKDV
UFZ Umweltforschungszentrum Leipzig-Halle GmbH,
Permoserstr. 15 - 04318 Leipzig
Tel.: [phone] - Fax [phone]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iD8DBQFEFvQFk33Krq8b42MRAqG6AJ93BsP0MDicCPc59R5prEaIqnZeQwCfYRcM
/wPmzqd/q+hEJcsmx3GiAF0=
=qM8f
-----END PGP SIGNATURE-----
--
Please see http://www.suse.com/oracle/ before posting

--
d-_-b \|/
0-0
---oOo-(_)-oOo---

----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.

[Werner Flamme]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Post by j***@intra.net.gt
Thank you very much Werner and Martin, the key was in $ORACLE_HOME/bin/oracle
permissions, I left it with "-rwsr-s--x" and it worked perfectly. I never
changed this before in other oracle installations with SLES9 and x86
architecture, maybe the installation process for x86_64 is different... or the
patchset...
Well anyways, thanks a lot!
Jorge

Jorge,

I quoted the SAPnote because I had exactly the same problem as you had. I
had some installations and upgrades of Oracle with SLES8 and SLES9, but
this happened on x86_64 only. I did not notice this error in my 32bit
environments - though it is not mentioned that the hint is valid for x86_64
only, so it may be a change in the installation routines.

BTW all my SAP servers are running 9.2.0.6 - 2 (both x86_64) as a fresh
install, the others as update.

Regards,
Werner

- --
Werner Flamme, Abt. WKDV
UFZ Umweltforschungszentrum Leipzig-Halle GmbH,
Permoserstr. 15 - 04318 Leipzig
Tel.: [phone] - Fax [phone]
http://www.ufz.de - eMail: ***@ufz.de




-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFEGDRXk33Krq8b42MRApKbAKCCA/gNc+3cGDTvPIsDdp2d6tYJ1gCdH7SC
hcLf/hWtYAz5+8yFMvrTkas=
=3RLb
-----END PGP SIGNATURE-----

[Alexei_Roudnev]

See here - script which reconfigure system to prevent it (drop . CONFIG.sh):

#!/bin/sh
. CONFIG.sh
#
# This script works around HUGETLB problem with some kernels
# Problem is that they are ON by default in SLES9
# but they require MCAP permission which is absent for Oracle
# So we will turn off mcap feature.
#
echo 1 > /proc/sys/vm/disable_cap_mlock

echo "vm.disable_cap_mlock = 1" >> /etc/sysctl.conf
chkconfig boot.sysctl on


Well known problem.



----- Original Message -----
From: <***@intra.net.gt>
To: <suse-***@suse.com>
Sent: Tuesday, March 14, 2006 8:14 AM
Subject: [suse-oracle] unable to attach to shared memory segment


Hi, I'm having a problem with my oracle installation in a x86_64
architecture.
Whenever I try to log in with sqlplus with the system user "oracle" and
database admin "sys" I can do so perfectly but if I want to use sqlplus with
another system's user like for example "oracleuser" and a user created in
oracle I get:

ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
Linux-x86_64 Error: 13: Permission denied

I have in this user's environmental variables:
ORACLE_SID=name_of_my_database
ORACLE_HOME=/opt/oracle/product/9ir2
ORACLE_BASE=/opt/oracle

Plus I have him associated to the "dba" group.

Odd thing is that I can log in using enterprise manager console with this
user,
I just can't log in using sqlplus. Can someone help me?

Jorge

----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.
--
To unsubscribe, email: suse-oracle-***@suse.com
For additional commands, email: suse-oracle-***@suse.com
Please see http://www.suse.com/oracle/ before posting