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Re: [Xen-users] Shared Memory Size in DomU

To: james he <jianjunhe@xxxxxxxxx>
Subject: Re: [Xen-users] Shared Memory Size in DomU
From: Patrick Meisel <meisel@xxxxxxxxxxxxx>
Date: Wed, 08 Nov 2006 10:48:13 +0100
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Hello James,

thanks for helping. I am using debian sarge both in Dom0 and DomU. Currently i am working with xen 3.0.3 (Kernel 2.6.16.29) but i had the same problem with xen 3.0.0 (Kernel 2.6.12.6).
The Problem arises when trying to create the database with dbca.

Patrick


james he schrieb:
Hello Patrick,

This problem is related to SGA size. Set proper SGA size may solve this problem. Can you provide the following information so that I can debug on my machine?
1. Linux Distribution Version
2. Kernel Version
3. Xen Version
Thanks.

Best Regard,

James He

Oracle OARDC
    Hello List,

    i have been trying for quite some time now to get Oracle 9i to
    work in a
    virtual machine and so far have failed every time. I did manage to
    install it by now but whenever i try to create a database or start
    the
    server Oracle complains about an "*ORA-27123:*unable to attach to
    shared
    memory segment" error.
    I do know this error from other oracle installs under debian that
    i have
    done and what usually does the trick is
    echo 2147483648 > /proc/sys/kernel/shmmax/
    echo 100 32000 100 100 > /proc/sys/kernel/sem/

    Unfortunately this does not help in a DomU. The Error remains the
    same.
    To find the error I also tried it in the Dom0 and here it works.
    So i guess it must be something either in the kernel (i have a
    seperate
    domU kernel) or it wont work because of xen itself.

    Has someone been able to install oracle 9i in a virtual machine or has
    ideas that i could try out to get this working?
    Any hints would be greatly appreciated!

    Thanks,

    Patrick


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