[Xen-devel] Re: [Xen-changelog] Added exception handler for ProtocolError.

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Xen patchbot -unstable wrote:
> # HG changeset patch
> # User emellor@xxxxxxxxxxxxxxxxxxxxxx
> # Node ID c1bb4eb565296bdb00aed84fcc877befbcebd8e9
> # Parent  b55ca95fdc846a5db9f30ba1c5d065fe898f88e7
> Added exception handler for ProtocolError.
>
> Signed-off-by: Ewan Mellor <ewan@xxxxxxxxxxxxx>
>
> diff -r b55ca95fdc84 -r c1bb4eb56529 tools/python/xen/xm/main.py
> --- a/tools/python/xen/xm/main.py       Thu Mar 23 10:55:56 2006
> +++ b/tools/python/xen/xm/main.py       Thu Mar 23 10:58:19 2006
> @@ -1102,6 +1102,12 @@
>              else:
>                  err("Error connecting to xend: %s." % ex[1])
>              sys.exit(1)
> +        except xmlrpclib.ProtocolError, ex:
> +            if os.geteuid() != 0:
> +                err("Most commands need root access.  Please try again as 
> root.")
> +            else:
> +                err("Error connecting to xend: %s." % ex.errmsg)
> +            sys.exit(1)
>          except SystemExit:
>              sys.exit(1)
>          except xmlrpclib.Fault, ex:
>   
Hi Ewan,

ProtocolError's shouldn't happen.  The case where os.geteuid() != 0 is a 
possibility (although I thought we had a check earlier for that?).  
However, if we are getting them for another reason, something's wrong.
What commands were you seeing this with?  There may be a latent bug in 
the dispatch code that marshals exceptions...
Regards,

Anthony Liguori

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