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Rob Dunkley

2010-Nov-22 20:58 UTC

[Xen-devel] Cannot start Xend

Hi All,


I really could do with any pointers people might have as to the reason 
for this error. The server was working fine but this appeared after a 
reboot. The HTTP part in xend-config.sxp is disabled already. Any advice 
would be appreciated.


Thanks,


Rob


# service xend start
Starting xend: Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
.Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
.Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
.Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
.Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
.Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
.Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
.Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
.Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
.Traceback (most recent call last):
   File "/usr/sbin/xend", line 44, in ?
     from xen.xend.server import SrvDaemon
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
27, in ?
     import SrvServer
   File 
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
49, in ?
     from xen.web.httpserver import HttpServer, UnixHttpServer
   File "/usr/lib64/python2.4/site-packages/xen/web/httpserver.py",
line
30, in ?
     from xen.xend.Args import ArgError
ValueError: bad marshal data
                                                            [FAILED]


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Xen-devel@lists.xensource.com
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Ian Campbell

2010-Nov-23 13:32 UTC

head link

[Xen-users] Re: [Xen-devel] Cannot start Xend

Please don''t cross post between xen-users/xen-devel.

On Mon, 2010-11-22 at 20:58 +0000, Rob Dunkley wrote:> Hi All,
> 
> 
> I really could do with any pointers people might have as to the reason 
> for this error. The server was working fine but this appeared after a 
> reboot. The HTTP part in xend-config.sxp is disabled already. Any advice 
> would be appreciated.
> 
> 
> Thanks,
> 
> 
> Rob
> 
> 
> # service xend start
> Starting xend: Traceback (most recent call last):
>    File "/usr/sbin/xend", line 44, in ?
>      from xen.xend.server import SrvDaemon
>    File 
>
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
> 27, in ?
>      import SrvServer
>    File 
>
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
> 49, in ?
>      from xen.web.httpserver import HttpServer, UnixHttpServer
>    File
"/usr/lib64/python2.4/site-packages/xen/web/httpserver.py", line
> 30, in ?
>      from xen.xend.Args import ArgError
> ValueError: bad marshal data
> Traceback (most recent call last):
>    File "/usr/sbin/xend", line 44, in ?
>      from xen.xend.server import SrvDaemon
>    File 
>
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvDaemon.py",
line
> 27, in ?
>      import SrvServer
>    File 
>
"/usr/lib64/python2.4/site-packages/xen/xend/server/SrvServer.py",
line
> 49, in ?
>      from xen.web.httpserver import HttpServer, UnixHttpServer
>    File
"/usr/lib64/python2.4/site-packages/xen/web/httpserver.py", line
> 30, in ?
>      from xen.xend.Args import ArgError
> ValueError: bad marshal data
Googling around suggests that this python error is often due to a .pyc
file becoming corrupted.

If you are on a RPM based system you could perhaps try "rpm
-qf /usr/lib64/python2.4/site-packages/xen/web/httpserver.py*" and see
if that reports any corruption (A 5 in the third column indicates the
md5 sum has changed).

In that case reinstalling the relevant RPM and/or remove httpserver.pyc
(it will be automatically regenerated) ought to help. You may also want
to check your disks for failures and/or report the issue to your distro
(or Xen .rpm provider) in case there is a packaging or python
infrastructure issue.

Ian.


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