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

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Re: [Xen-changelog] Added exception handler for ProtocolError.
From: Anthony Liguori <aliguori@xxxxxxxxxx>
Date: Thu, 23 Mar 2006 10:24:42 -0600
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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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