Re: install 10g on SuSE 9.1 and got a error

From: Lyubomir Petrov <lpetrov_at_sysmaster.com>
Date: Thu, 01 Jul 2004 08:21:24 -0700
Message-ID: <40E42BF4.1040006@sysmaster.com>

David,

This error happens because of a new feature called Huge TLB support, which is enabled by default in 2.6 kernels. By default only root has permission to allocate shared memory with this option (SHM_HUGETLB) and Oracle 10g defaults using it, so Oracle fails to allocate the SGA.

This capability is supposed to be able to controlled with the setcaps program (CAP_IPC_LOCK), but I couldn't get it to work properly. I did some research - the probable reason: setcap utilities are not supported by the particular filesystem.

The solution is either to set DISABLE_HUGETLBFS=1 before you start Oracle or to recompile the kernel without CONFIG_HUGETLB_PAGE and CONFIG_HUGETLBFS configuration parameters.

Regards,
Lyubomir Petrov

David Fenng wrote:

>Hi,All,
>
>Today ,I've tried to install Oracle 10g on SuSE 9.1 prof .The software
>Installation was OK.
>
>But when I use dbca to create the instance , I got a error ,ORA-27125:
>unable to
>create shared memory segment.
>
>some information about the Suse machine:
>
>linux:~ # cat /etc/sysctl.conf
>#-----------Begin from here--------------------------------------
> kernel.shmall = 2097152
> kernel.shmmax = 2147483648
> kernel.shmmni = 4096
> kernel.shmmin = 1
> kernel.sem = 250 32000 100 128
> fs.file-max = 65536
> net.ipv4.ip_local_port_range = 1024 65000
>#--------------End here--------------------------------------------
>linux:~ #
>
>Physical memory :512 M
>Cpu : Intel P4 1.7G
>
>I've read the Installation guide for Linux @ otn.oracle.com and
>search www.google.com.
>
>thanks for you help !!
>
>

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Received on Thu Jul 01 2004 - 10:18:30 CDT