[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] Improve xm error if booted native
Another trivial "user experience" patch that's been requested one too many times ... ----------------------------------------- How to reproduce: i) boot default kernel (i.e. not xen kernel) ii) run xm list Actual Result: calculon:/tmp # uname -a Linux calculon.suse.cz 2.6.27.11-1-default #1 SMP 2009-01-14 23:28:13 +0100 x86_64 x86_64 x86_64 GNU/Linux calculon:/tmp # xm list 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/xm", line 8, in <module> from xen.xm import main File "/usr/lib64/python2.6/site-packages/xen/xm/main.py", line 61, 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)') calculon:/tmp # Expected result: A more descriptive error message and no python traceback. ----------------------------------------- Looking at the various xc_interface_open() impls in tools/libxc/xc_{linux,minios,netbsd,solaris}.c, it seems the most likely reason to fail is not booted xen. I added a comment in the error suggesting this to user, e.g. xen67:~ # xm li ERROR Internal error: Could not obtain handle on privileged command interface (2 = No such file or directory) Is xen kernel running? The suggestion can go if you like but IMO we should suppress the traceback :-). Signed-off-by: Jim Fehlig <jfehlig@xxxxxxxxxx> Index: xen-3.3.1-testing/tools/python/xen/xm/main.py =================================================================== --- xen-3.3.1-testing.orig/tools/python/xen/xm/main.py +++ xen-3.3.1-testing/tools/python/xen/xm/main.py @@ -58,7 +58,11 @@ from xen.util.acmpolicy import ACM_LABEL import XenAPI import xen.lowlevel.xc -xc = xen.lowlevel.xc.xc() +try: + xc = xen.lowlevel.xc.xc() +except Exception, ex: + print >>sys.stderr, ("Is xen kernel running?") + sys.exit(1) import inspect from xen.xend import XendOptions _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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