ok.
I am re-triggering the patch to provide a fix for master since its still failing and I am not seeing a passed vdsm project.

I will update on status of vdsm after the patch passes




On Thu, Sep 13, 2018 at 11:01 AM, Dominik Holler <dholler@redhat.com> wrote:
On Thu, 13 Sep 2018 10:53:20 +0100
Dafna Ron <dron@redhat.com> wrote:

> but this test is currently failing no?
>

No, only the issue related to the vlan.speed() failed.
This is already addressed in "failure in ost test - Invalid argument -
help in debugging issue" and Petr provided a fix for master and
ovirt-4.2 in
https://gerrit.ovirt.org/#/c/94301/

So I am not aware of any network related OST fail.

> On Thu, Sep 13, 2018 at 10:49 AM, Dominik Holler <dholler@redhat.com>
> wrote:
>
> > On Thu, 13 Sep 2018 10:32:12 +0100
> > Dafna Ron <dron@redhat.com> wrote:
> > 
> > > Hi Dominic,
> > >
> > > should detach_vm_network_from_host_0 be running while
> > > modify_host_0_ip_to_dhcp set VM_NETWORK is running?
> > > 
> >
> > modify_host_0_ip_to_dhcp just initiates the async dhcp client in the
> > background on the host and returns in the test environment.
> >
> > 
> > >
> > >
> > > On Thu, Sep 13, 2018 at 8:05 AM, Dominik Holler
> > > <dholler@redhat.com> wrote:
> > > 
> > > > On Wed, 12 Sep 2018 08:17:46 +0100
> > > > Dafna Ron <dron@redhat.com> wrote:
> > > > 
> > > > > Thanks Dominic.
> > > > > Can you please review the network tests to fix this race
> > > > > between the two tests?
> > > > >
> > > > > 
> > > >
> > > >
> > > > Dafna, why do you think the current behavior should be changed,
> > > > or how the current behavior should be improved?
> > > > 
> > > > > On Tue, Sep 11, 2018 at 9:53 PM, Dominik Holler
> > > > > <dholler@redhat.com> wrote:
> > > > > 
> > > > > > On Tue, 11 Sep 2018 17:18:15 +0200
> > > > > > Dominik Holler <dholler@redhat.com> wrote:
> > > > > > 
> > > > > > > On Tue, 11 Sep 2018 12:22:21 +0100
> > > > > > > Dafna Ron <dron@redhat.com> wrote:
> > > > > > > 
> > > > > > > > Can someone take ownership to fix it?
> > > > > > > > 
> > > > > > >
> > > > > > > I will take ownership and track the fix.
> > > > > > >
> > > > > > > 
> > > > > > > > On Tue, Sep 11, 2018 at 12:04 PM, Petr Horacek
> > > > > > > > <phoracek@redhat.com> wrote:
> > > > > > > > 
> > > > > > > > > vdsm.log is the same issue, supervdsm.log seems
> > > > > > > > > unrelated.
> > > > > > > > >
> > > > > > > > > 2018-09-11 11:59 GMT+02:00 Dominik Holler
> > > > > > > > > <dholler@redhat.com>: 
> > > > > > > > >> On Tue, 11 Sep 2018 10:26:02 +0100
> > > > > > > > >> Dafna Ron <dron@redhat.com> wrote:
> > > > > > > > >> 
> > > > > > > > >> > Hi,
> > > > > > > > >> >
> > > > > > > > >> > I have been seeing random failures of tests in
> > > > > > > > >> > different projects caused by vdsm monitoring.
> > > > > > > > >> >
> > > > > > > > >> > I need someone from vdsm to please help debug this
> > > > > > > > >> > issue. 
> > > > > > > > >>
> > > > > > > > >> Petr, is this the same problem like yesterday in
> > > > > > > > >>
> > > > > > > > >> [ovirt-devel] failure in ost test - Invalid argument
> > > > > > > > >> - help in debugging issue
> > > > > > > > >> 
> > > > > > > > >> > From what I can see, the test suspend/resume vm
> > > > > > > > >> > failed because we could not query the status of
> > > > > > > > >> > the vm on the host.
> > > > > > > > >> >
> > > > > > > > >> > you can see full log from failed tests here:
> > > > > > > > >> >
> > > > > > > > >> > https://jenkins.ovirt.org/job/ 
> > ovirt-master_change-queue-test 
> > > > 
> > > > > > > > >> er/10208/artifact/basic-suite.el7.x86_64/test_logs/basic-
> > > > > > > > >> suite-master/post-004_basic_sanity.py/ 
> > > > > > > > >> >
> > > > > > > > >> > Here are the errors that I can see in the vdsm
> > > > > > > > >> > which seem to suggest that there is an issue
> > > > > > > > >> > getting stats on the vm which was suspended and
> > > > > > > > >> > caused the failure of the test:
> > > > > > > > >> >
> > > > > > > > >> >
> > > > > > > > >> >
> > > > > > > > >> > 2018-09-11 00:40:05,896-0400 INFO
> > > > > > > > >> > (monitor/c1fe6e6) [storage.StorageDomain] Removing
> > > > > > > > >> > remnants of deleted images [] (fileSD:734)
> > > > > > > > >> > 2018-09-11 00:40:07,957-0400 DEBUG (qgapoller/1)
> > > > > > > > >> > [vds] Not sending QEMU-GA command
> > > > > > > > >> > 'guest-get-users' to
> > > > > > > > >> > vm_id='8214433a-f233-4aaa-aeda-2ce1d31c78dc',
> > > > > > > > >> > command is not supported (qemuguestagent:192)
> > > > > > > > >> > 2018-09-11 00:40:08,068-0400 DEBUG (periodic/3)
> > > > > > > > >> > [virt.sampling.VMBulkstatsMonitor] sampled
> > > > > > > > >> > timestamp 4296118.49 elapsed 0.010 acquired True
> > > > > > > > >> > domains all (sampling:443) 2018-09-11
> > > > > > > > >> > 00:40:08,271-0400 DEBUG (jsonrpc/1)
> > > > > > > > >> > [jsonrpc.JsonRpcServer] Calling 'Image.prepare' in
> > > > > > > > >> > bridge with {u'allowIllegal': True,
> > > > > > > > >> > u'storagepoolID':
> > > > > > > > >> > u'e80a56d9-74da-498a-b010-4a9df287f11d',
> > > > > > > > >> > u'imageID': u'd4c831e6-02d2-4d89-b516-0ec4597
> > > > > > > > >> > 5e024', u'volumeID':
> > > > > > > > >> > u'15b07af1-625b-42e3-b62a-8e7c7a120a56',
> > > > > > > > >> > u'storagedomainID':
> > > > > > > > >> > u'f1744940-41b6-4d35-b7bf-870c4e07d995'}
> > > > > > > > >> > (__init__:329)
> > > > > > > > >> >
> > > > > > > > >> >
> > > > > > > > >> > 2018-09-11 00:40:10,846-0400 DEBUG (vmchannels)
> > > > > > > > >> > [virt.vm]
> > > > > > > > >> > (vmId='8214433a-f233-4aaa-aeda-2ce1d31c78dc') Guest
> > > > > > > > >> > connection timed out (guestagent:556) 2018-09-11
> > > > > > > > >> > 00:40:11,637-0400 DEBUG (jsonrpc/5)
> > > > > > > > >> > [jsonrpc.JsonRpcServer] Calling 'Host.getStats' in
> > > > > > > > >> > bridge with {} (__init__:329) 2018-09-11
> > > > > > > > >> > 00:40:11,637-0400 INFO (jsonrpc/5) [api.host] START
> > > > > > > > >> > getStats() from=::ffff:192.168.201.4,49184 (api:47)
> > > > > > > > >> > 2018-09-11 00:40:11,643-0400 DEBUG (jsonrpc/5)
> > > > > > > > >> > [root] cannot read eth0 speed (nic:42) 2018-09-11
> > > > > > > > >> > 00:40:11,645-0400 DEBUG (jsonrpc/5) [root] cannot
> > > > > > > > >> > read eth1 speed (nic:42) 2018-09-11
> > > > > > > > >> > 00:40:11,647-0400 DEBUG (jsonrpc/5) [root] cannot
> > > > > > > > >> > read eth2 speed (nic:42) 2018-09-11
> > > > > > > > >> > 00:40:11,649-0400 DEBUG (jsonrpc/5) [root] cannot
> > > > > > > > >> > read eth3 speed (nic:42) 2018-09-11
> > > > > > > > >> > 00:40:11,667-0400 INFO  (jsonrpc/5) [api.host]
> > > > > > > > >> > FINISH getStats error=[Errno 22] Invalid argument
> > > > > > > > >> > from=::ffff:192.168.201.4,49184 (api:51)
> > > > > > > > >> > 2018-09-11 00:40:11,667-0400 ERROR (jsonrpc/5)
> > > > > > > > >> > [jsonrpc.JsonRpcServer] Internal server error
> > > > > > > > >> > (__init__:350) Traceback (most recent call last):
> > > > > > > > >> > File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/yajsonrpc/__init__.py",
> > > > > > > > >> > line 345, in _handle_request res =
> > > > > > > > >> > method(**params) File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/rpc/Bridge.py",
> > > > > > > > >> > line 202, in _dynamicMethod result =
> > > > > > > > >> > fn(*methodArgs) File "<string>", line 2, in
> > > > > > > > >> > getStats File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/common/api.py",
> > > > > > > > >> > line 49, in method ret = func(*args, **kwargs)
> > > > > > > > >> > File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/API.py",
> > > > > > > > >> > line 1407, in getStats multipath=True)} File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/host/api.py",
> > > > > > > > >> > line 49, in get_stats decStats =
> > > > > > > > >> > stats.produce(first_sample, last_sample) File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/host/stats.py",
> > > > > > > > >> > line 71, in produce
> > > > > > > > >> > stats.update(get_interfaces_stats()) File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/host/stats.py",
> > > > > > > > >> > line 153, in get_interfaces_stats return
> > > > > > > > >> > net_api.network_stats() File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/network/api.py",
> > > > > > > > >> > line 63, in network_stats return netstats.report()
> > > > > > > > >> > File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/network/ 
> > netstats.py", 
> > > > > > > > >> > line 31, in report stats = link_stats.report()
> > > > > > > > >> >   File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/network/link/ 
> > > > stats.py", 
> > > > > > > > >> > line 41, in report speed = vlan.speed(i.device)
> > > > > > > > >> >   File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/network/link/ 
> > vlan.py", 
> > > > > > > > >> > line 36, in speed dev_speed =
> > > > > > > > >> > nic.read_speed_using_sysfs(dev_name) File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/network/link/ 
> > nic.py", 
> > > > > > > > >> > line 48, in read_speed_using_sysfs s =
> > > > > > > > >> > int(f.read()) IOError: [Errno 22] Invalid argument
> > > > > > > > >> > 2018-09-11 00:40:11,669-0400 INFO  (jsonrpc/5)
> > > > > > > > >> > [jsonrpc.JsonRpcServer] RPC call Host.getStats
> > > > > > > > >> > failed (error -32603) in 0.03 seconds
> > > > > > > > >> > (__init__:312) 2018-09-11 00:40:14,656-0400 DEBUG
> > > > > > > > >> > (jsonrpc/2) [jsonrpc.JsonRpcServer] Calling
> > > > > > > > >> > 'Host.getAllVmStats' in bridge with {}
> > > > > > > > >> > (__init__:329) 2018-09-11 00:40:14,657-0400 INFO
> > > > > > > > >> > (jsonrpc/2) [api.host] START getAllVmStats()
> > > > > > > > >> > from=::1,46772 (api:47) 2018-09-11
> > > > > > > > >> > 00:40:14,659-0400 INFO (jsonrpc/2) [api.host]
> > > > > > > > >> > FINISH getAllVmStats return={'status': {'message':
> > > > > > > > >> > 'Done', 'code': 0}, 'statsList': (suppressed)}
> > > > > > > > >> > from=::1,46772 (api:53) 2018-09-11
> > > > > > > > >> > 00:40:14,660-0400 DEBUG (jsonrpc/2)
> > > > > > > > >> > [jsonrpc.JsonRpcServer] Return
> > > > > > > > >> > 'Host.getAllVmStats' in bridge with (suppressed)
> > > > > > > > >> > (__init__:356) 2018-09-11 00:40:14,661-0400 INFO
> > > > > > > > >> > (jsonrpc/2) [jsonrpc.JsonRpcServer] RPC call
> > > > > > > > >> > Host.getAllVmStats succeeded in 0.00 seconds
> > > > > > > > >> > (__init__:312) 2018-09-11 00:40:14,674-0400 DEBUG
> > > > > > > > >> > (jsonrpc/1) [jsonrpc.JsonRpcServer] Calling
> > > > > > > > >> > 'Host.getAllVmIoTunePolicies' in bridge with {}
> > > > > > > > >> > (__init__:329) 2018-09-11 00:40:14,675-0400 INFO
> > > > > > > > >> > (jsonrpc/1) [api.host] START
> > > > > > > > >> > getAllVmIoTunePolicies() from=::1,46772 (api:47)
> > > > > > > > >> > 2018-09-11 00:40:14,675-0400 INFO (jsonrpc/1)
> > > > > > > > >> > [api.host] FINISH getAllVmIoTunePolicies
> > > > > > > > >> > return={'status': {'message': 'Done', 'code': 0},
> > > > > > > > >> > 'io_tune_policies_dict':
> > > > > > > > >> > {'8214433a-f233-4aaa-aeda-2ce1d31c78dc':
> > > > > > > > >> > {'policy': [], 'current_values': [{'ioTune':
> > > > > > > > >> > {'write_bytes_sec': 0L, 'total_iops_sec': 0L,
> > > > > > > > >> > 'read_iops_sec': 0L, 'read_bytes_sec': 0L,
> > > > > > > > >> > 'write_iops_sec': 0L, 'total_bytes_sec': 0L},
> > > > > > > > >> > 'path':
> > > > > > > > >> > '/rhev/data-center/mnt/blockSD/f1744940-41b6-4d35-b7bf- 
> > > > > > > > >> 870c4e07d995/images/9a3659dc-339e-4b3f-a1d1-6ee3debb6168/
> > > > > > > > >> e2570635-a798-4e9e-a0ea-88436d5b296f', 
> > > > > > > > >> > 'name': 'vda'}]}}} from=::1,46772 (api:53)
> > > > > > > > >> > 2018-09-11 00:40:14,675-0400 DEBUG (jsonrpc/1)
> > > > > > > > >> > [jsonrpc.JsonRpcServer] Return
> > > > > > > > >> > 'Host.getAllVmIoTunePolicies' in bridge with
> > > > > > > > >> > {'8214433a-f233-4aaa-aeda-2ce1d31c78dc': {'policy':
> > > > > > > > >> > [], 'current_values': [{'ioTune':
> > > > > > > > >> > {'write_bytes_sec': 0L, 'total_iops_sec': 0L,
> > > > > > > > >> > 'read_iops_sec': 0L, 'read_bytes_sec': 0L,
> > > > > > > > >> > 'write_iops_sec': 0L, 'total_bytes_sec': 0L},
> > > > > > > > >> > 'path':
> > > > > > > > >> > '/rhev/data-center/mnt/blockSD/f1744940-41b6-4d35-b7bf- 
> > > > > > > > >> 870c4e07d995/images/9a3659dc-339e-4b3f-a1d1-6ee3debb6168/
> > > > > > > > >> e2570635-a798-4e9e-a0ea-88436d5b296f', 
> > > > > > > > >> > 'name': 'vda'}]}} (__init__:356) 2018-09-11
> > > > > > > > >> > 00:40:14,675-0400 INFO (jsonrpc/1)
> > > > > > > > >> > [jsonrpc.JsonRpcServer] RPC call
> > > > > > > > >> > Host.getAllVmIoTunePolicies succeeded in 0.00
> > > > > > > > >> > seconds (__init__:312) 2018-09-11
> > > > > > > > >> > 00:40:16,118-0400 DEBUG (jsonrpc/7)
> > > > > > > > >> > [jsonrpc.JsonRpcServer] Calling
> > > > > > > > >> > 'Host.getAllVmStats' in bridge with {}
> > > > > > > > >> > (__init__:329) 2018-09-11 00:40:16,119-0400 INFO
> > > > > > > > >> > (jsonrpc/7) [api.host] START getAllVmStats()
> > > > > > > > >> > from=::ffff:192.168.201.4,49184 (api:47)
> > > > > > > > >> > 2018-09-11 00:40:16,121-0400 INFO  (jsonrpc/7)
> > > > > > > > >> > [api.host] FINISH getAllVmStats return={'status':
> > > > > > > > >> > {'message': 'Done', 'code': 0}, 'statsList':
> > > > > > > > >> > (suppressed)} from=::ffff:192.168.201.4,49184
> > > > > > > > >> > (api:53) 2018-09-11 00:40:16,122-0400 DEBUG
> > > > > > > > >> > (jsonrpc/7) [jsonrpc.JsonRpcServer] Return
> > > > > > > > >> > 'Host.getAllVmStats' in bridge with (suppressed)
> > > > > > > > >> > (__init__:356) 2018-09-11 00:40:16,122-0400 INFO
> > > > > > > > >> > (jsonrpc/7) [jsonrpc.JsonRpcServer] RPC call
> > > > > > > > >> > Host.getAllVmStats succeeded in 0.01 seconds
> > > > > > > > >> > (__init__:312) 2018-09-11 00:40:17,956-0400 DEBUG
> > > > > > > > >> > (qgapoller/2) [vds] Not sending QEMU-GA command
> > > > > > > > >> > 'guest-get-users' to
> > > > > > > > >> > vm_id='8214433a-f233-4aaa-aeda-2ce1d31c78dc',
> > > > > > > > >> > command is not supported (qemuguestagent:192)
> > > > > > > > >> > 2018-09-11 00:40:18,025-0400 DEBUG (periodic/3)
> > > > > > > > >> > [virt.periodic] Looking for stale paused VMs
> > > > > > > > >> > (periodic:388)
> > > > > > > > >> >
> > > > > > > > >> > I can also see this in Super vdsm which may be
> > > > > > > > >> > related but I an not 100% sure its related to
> > > > > > > > >> > current issue:
> > > > > > > > >> >
> > > > > > > > >> > MainProcess|jsonrpc/2::DEBUG::2018-09-11
> > > > > > > > >> > 00:33:20,012::cmdutils::159::root::(exec_cmd)
> > > > > > > > >> > SUCCESS: <err> = ''; <rc> = 0
> > > > > > > > >> > ifup/on039d2d88d8ee4::DEBUG::2018-09-11
> > > > > > > > >> > 00:33:20,238::cmdutils::159::root::(exec_cmd)
> > > > > > > > >> > FAILED: <err> = 'Running scope as unit
> > > > > > > > >> > 2f1f417d-85b9-46c0-b7d7-6082836daaae.scope.\n/etc/sysconfig/ 
> > 
> > > > 
> > > > > > > > >> network-scripts/ifup-eth: 
> > > > > > > > >> > line 321: 20715 Terminated
> > > > > > > > >> >              /sbin/dhclient ${DHCLIENTARGS}
> > > > > > > > >> > ${DEVICE}\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nCannot find device
> > > > > > > > >> > "on039d2d88d8ee4"\nDevice "on039d2d88d8ee4" does
> > > > > > > > >> > not exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d 8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevic e "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d 8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevic e "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d 8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevic e "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\nDevice "on039d2d88d8ee4" does not
> > > > > > > > >> > exist.\n'; <rc> = 1
> > > > > > > > >> > ifup/on039d2d88d8ee4::ERROR::2018-09-11
> > > > > > > > >> > 00:33:20,238::concurrent::202::root::(run) FINISH
> > > > > > > > >> > thread <Thread(ifup/on039d2d88d8ee4, stopped
> > > > > > > > >> > daemon 140281550731008)> failed Traceback (most
> > > > > > > > >> > recent call last): File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/common/ 
> > concurrent.py", 
> > > > > > > > >> > line 195, in run ret = func(*args, **kwargs) File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/network/ 
> > > > > > configurators/ifcfg.py", 
> > > > > > > > >> > line 948, in _exec_ifup
> > > > > > > > >> > _exec_ifup_by_name(iface.name, cgroup) File
> > > > > > > > >> > "/usr/lib/python2.7/site-packages/vdsm/network/ 
> > > > > > configurators/ifcfg.py", 
> > > > > > > > >> > line 934, in _exec_ifup_by_name
> > > > > > > > >> >     raise ConfigNetworkError(ERR_FAILED_IFUP,
> > > > > > > > >> > out[-1] if out else '') ConfigNetworkError: (29,
> > > > > > > > >> > '\n')
> > > > > > > > >> >
> > > > > > > > >> > 
> > > > > >
> > > > > >
> > > > > > What happens in
> > > > > > basic-suite-master/test-scenarios/003_basic_networking.py :
> > > > > > modify_host_0_ip_to_dhcp set VM_NETWORK to use DHCP,
> > > > > > so vdsm is calling ifup, which tries to configure via DHCP
> > > > > > in the background.
> > > > > > The next test detach_vm_network_from_host_0 removes the
> > > > > > network, while ifup still hangs in dhcp configuration,
> > > > > > because in this VLAN there is no DHCP server.
> > > > > > So from my point of view this error in supervdsm.log is
> > > > > > legitimate, because VDSM was advised to configure via DHCP,
> > > > > > which fails because the interface is removed during dhcp
> > > > > > configuration. I did not recognize that this triggeres any
> > > > > > chained errors. 
> > > > > > > > >> > thanks,
> > > > > > > > >> > Dafna 
> > > > > > > > >>
> > > > > > > > >> 
> > > > > > > > > 
> > > > > > > 
> > > > > >
> > > > > > 
> > > >
> > > > 
> >
> >