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Re: [Xen-devel] failed to build xen from source code

On Mon, May 31, 2010 at 10:38:32AM +0800, wenche_chang@xxxxxxxxxxxx wrote:
>    Hi pasi
> 
>    After following the fstab entry on the XenParavirtOps wiki page,there are
>    files in /proc/xen
>    I also check the dom0 config file, and there is "<*> Xen /dev/xen/evtchn
>    device".
>    But in lsmod,there is not xen-evtchn.
>    I tried modprobe xen-evtchn,and it shows "FATAL : xen_evtchn not found"
>    do I forget something to do??
> 

You have compiled it statically in, so then it's not built as a module.
No need to load it, it's already in there.

After you see files under /proc/xen you should be able to start xend.

If it still doesn't work.. do you have selinux enabled?

-- Pasi

>    thanks
> 
>    --------------------------------------------------------------------------
> 
>    From: Pasi Kärkkäinen [mailto:pasik@xxxxxx]
>    Sent: 2010/5/28 [¬PŽÁ€] €U€È 06:27
>    To: Wen Che Chang (RD-TW)
>    Cc: Xen-devel@xxxxxxxxxxxxxxxxxxx
>    Subject: Re: [Xen-devel] failed to build xen from source code
> 
>    On Fri, May 28, 2010 at 06:18:18PM +0800, wenche_chang@xxxxxxxxxxxx wrote:
>    > Hi pasi
>    >
>    > You are right.
>    > There is not any file in /proc/xen and I can't see xen-evtchn when I run
>    lsmod.
>    >
>    > But I don???t know how to fix these problems even I read the link in
>    wiki.
>    > Can you provide more detail reference?
>    >
> 
>    - Check your dom0 kernel .config file. Is the Xen event channel compiled
>    in, or is it built as a module?
>      If it's a module, then use "modprobe xen-evtchn" to load it.
> 
>    - For mounting /proc/xen see the example fstab entry on the XenParavirtOps
>    wiki page. Add the line to /etc/fstab and after that run "mount
>    /proc/xen".
>      Xen 3.4.3 and 4.0.0 should automatically mount /proc/xen though.
> 
>    -- Pasi
> 
>    > thanks a lot.
>    > -----Original Message-----
>    > From: Pasi Kärkkäinen [[1]mailto:pasik@xxxxxx]
>    > Sent: Friday, May 28, 2010 5:48 PM
>    > To: Wen Che Chang (RD-TW)
>    > Cc: Xen-devel@xxxxxxxxxxxxxxxxxxx
>    > Subject: Re: [Xen-devel] failed to build xen from source code
>    >
>    > On Fri, May 28, 2010 at 05:35:09PM +0800, wenche_chang@xxxxxxxxxxxx
>    wrote:
>    > > Hi
>    > > I have read  "Xend does not start when using pv_ops dom0 kernel? "in
>    this link and I don???t think it's my problem
>    > >
>    > > I download SRPM of XEN 4.0.0 from
>    [2]http://pasik.reaktio.net/fedora/xen-4.0.0-0.7.fc12.src.rpm or
>    [3]http://fedorapeople.org/~myoung/dom0/src/xen-4.0.0-0.7.fc12.src.rpm
>    > >
>    > > After installation it in Fedora 12 , xend works well, but it can't
>    start if I install Xen from [4]http://xenbits.xen.org/xen-4.0-testing.hg
>    > >
>    >
>    > I think the init scripts in Fedora rpm do more than the default scripts
>    in upstream Xen.
>    >
>    > So:
>    >       - Do you have /proc/xen (xenfs) mounted? Do you have files in it?
>    >       - Do you have xen-evtchn driver loaded? Run lsmod if it's compiled
>    as a module in your dom0 kernel.
>    >
>    > Both of those need to be OK before xend starts.
>    >
>    > -- Pasi
>    >
>    > > -----Original Message-----
>    > > From: Pasi Kärkkäinen [[5]mailto:pasik@xxxxxx]
>    > > Sent: Friday, May 28, 2010 4:51 PM
>    > > To: Wen Che Chang (RD-TW)
>    > > Cc: jeremy@xxxxxxxx; Xen-devel@xxxxxxxxxxxxxxxxxxx
>    > > Subject: Re: [Xen-devel] failed to build xen from source code
>    > >
>    > > On Fri, May 28, 2010 at 03:33:54PM +0800, wenche_chang@xxxxxxxxxxxx
>    wrote:
>    > > >    Hi
>    > > >
>    > > >    after install these two RPMs , I can build and install the xen
>    4.0.1
>    > > >
>    > > >    But there are some troubles about xend , the error message is
>    shown as
>    > > >    below
>    > > >
>    > > >    [root@localhost ~]# xm list
>    > > >     Unable to connect to xend: No such file or directory. Is xend
>    running?
>    > > >
>    > > >    [root@localhost ~]# xend
>    > > >    ERROR Internal error: Could not obtain handle on privileged
>    command
>    > > >    interface (2 = No such file or directory)
>    > > >    Traceback (most recent call last):
>    > > >      File "/usr/sbin/xend", line 36, in <module>
>    > > >        from xen.xend.server import SrvDaemon
>    > > >      File
>    "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvDaemon.py",
>    > > >    line 26, in <module>
>    > > >        import relocate
>    > > >      File
>    "/usr/lib64/python2.6/site-packages/xen/xend/server/relocate.py",
>    > > >    line 28, in <module>
>    > > >        from xen.xend import XendDomain
>    > > >      File
>    "/usr/lib64/python2.6/site-packages/xen/xend/XendDomain.py", line
>    > > >    36, in <module>
>    > > >        from xen.xend import XendOptions, XendCheckpoint,
>    XendDomainInfo
>    > > >      File
>    "/usr/lib64/python2.6/site-packages/xen/xend/XendCheckpoint.py",
>    > > >    line 20, in <module>
>    > > >        from xen.xend import balloon, sxp, image
>    > > >      File "/usr/lib64/python2.6/site-packages/xen/xend/image.py",
>    line 46, in
>    > > >    <module>
>    > > >        xc = xen.lowlevel.xc.xc()
>    > > >    xen.lowlevel.xc.Error: (1, 'Internal error', 'Could not obtain
>    handle on
>    > > >    privileged command interface (2 = No such file or directory)')
>    > > >
>    > > >
>    > > >    Any idea?
>    > > >
>    > >
>    > >
>    > > Try reading the troubleshooting tips at:
>    > > [6]http://wiki.xensource.com/xenwiki/XenParavirtOps
>    > >
>    > >
>    > > -- Pasi
>    > >
>    > >
>    > > >
>    --------------------------------------------------------------------------
>    > > >
>    > > >    From: Jeremy Fitzhardinge [[7]mailto:jeremy@xxxxxxxx]
>    > > >    Sent: 2010/5/28 [¬PŽÁ£á] £áU£áÈ 12:19
>    > > >    To: Wen Che Chang (RD-TW)
>    > > >    Cc: Xen-devel@xxxxxxxxxxxxxxxxxxx
>    > > >    Subject: Re: [Xen-devel] failed to build xen from source code
>    > > >
>    > > >    On 05/27/2010 08:47 PM, wenche_chang@xxxxxxxxxxxx wrote:
>    > > >    > Hi
>    > > >    > I tried to install Xen 4.0.1 from
>    > > >    > [1][8]http://*xen*bits.*xen*.org/*xen*-*4.0*-testing.hg
>    > > >    > <[2][9]http://xenbits.xen.org/xen-4.0-testing.hg>
>    > > >    > I use the installation step in Xen wiki as shown below
>    > > >    > yum groupinstall "Development Libraries"
>    > > >    > yum groupinstall "Development Tools"
>    > > >    > yum install transfig texi2html libaio-devel dev86 glibc-devel
>    > > >    e2fsprogs-devel gitk mkinitrd iasl xz-devel bzip2-devel
>    > > >    > hg clone [3][10]http://xenbits.xen.org/xen-4.0-testing.hg
>    > > >    > cd xen-4.0-testing.hg
>    > > >    > make xen
>    > > >    > make tools
>    > > >    > make stubdom
>    > > >    > I failed in  "make tools" and it shows
>    > > >    > /usr/bin/ld: cannot find -lpci
>    > > >    >
>    > > >
>    > > >    I think you also need pciutils-libs and pciutils-devel.
>    > > >
>    > > >    J
>    > > >
>    > > > TREND MICRO EMAIL NOTICE
>    > > > The information contained in this email and any attachments is
>    confidential and may be subject to copyright or other intellectual
>    property protection. If you are not the intended recipient, you are not
>    authorized to use or disclose this information, and we request that you
>    notify us by reply mail or telephone and delete the original message from
>    your mail system.
>    > > >
>    > > > References
>    > > >
>    > > >    Visible links
>    > > >    1. [11]http://*xen*bits.*xen*.org/*xen*-*4.0*-testing.hg
>    > > >    2. [12]http://xenbits.xen.org/xen-4.0-testing.hg
>    > > >    3. [13]http://xenbits.xen.org/xen-4.0-testing.hg
>    > >
>    > > > _______________________________________________
>    > > > Xen-devel mailing list
>    > > > Xen-devel@xxxxxxxxxxxxxxxxxxx
>    > > > [14]http://lists.xensource.com/xen-devel
>    > >
>    > >
>    > > TREND MICRO EMAIL NOTICE
>    > > The information contained in this email and any attachments is
>    confidential and may be subject to copyright or other intellectual
>    property protection. If you are not the intended recipient, you are not
>    authorized to use or disclose this information, and we request that you
>    notify us by reply mail or telephone and delete the original message from
>    your mail system.
>    >
>    > TREND MICRO EMAIL NOTICE
>    > The information contained in this email and any attachments is
>    confidential and may be subject to copyright or other intellectual
>    property protection. If you are not the intended recipient, you are not
>    authorized to use or disclose this information, and we request that you
>    notify us by reply mail or telephone and delete the original message from
>    your mail system.
> 
> TREND MICRO EMAIL NOTICE
> The information contained in this email and any attachments is confidential 
> and may be subject to copyright or other intellectual property protection. If 
> you are not the intended recipient, you are not authorized to use or disclose 
> this information, and we request that you notify us by reply mail or 
> telephone and delete the original message from your mail system.
> 
> References
> 
>    Visible links
>    1. mailto:pasik@xxxxxx
>    2. http://pasik.reaktio.net/fedora/xen-4.0.0-0.7.fc12.src.rpm
>    3. http://fedorapeople.org/~myoung/dom0/src/xen-4.0.0-0.7.fc12.src.rpm
>    4. http://xenbits.xen.org/xen-4.0-testing.hg
>    5. mailto:pasik@xxxxxx
>    6. http://wiki.xensource.com/xenwiki/XenParavirtOps
>    7. mailto:jeremy@xxxxxxxx
>    8. http://*xen*bits.*xen*.org/*xen*-*4.0*-testing.hg
>    9. http://xenbits.xen.org/xen-4.0-testing.hg
>   10. http://xenbits.xen.org/xen-4.0-testing.hg
>   11. http://*xen*bits.*xen*.org/*xen*-*4.0*-testing.hg
>   12. http://xenbits.xen.org/xen-4.0-testing.hg
>   13. http://xenbits.xen.org/xen-4.0-testing.hg
>   14. http://lists.xensource.com/xen-devel

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