Bug 1435579

Summary: Failed to restart VM vm2-test-w2k12r2-1 on Host <UNKNOWN>
Product: [oVirt] ovirt-engine Reporter: Jiri Belka <jbelka>
Component: Frontend.WebAdminAssignee: Sharon Gratch <sgratch>
Status: CLOSED CURRENTRELEASE QA Contact: Jiri Belka <jbelka>
Severity: high Docs Contact:
Priority: unspecified    
Version: 4.1.1.5CC: bugs, lsvaty, stirabos, tjelinek
Target Milestone: ovirt-4.1.3Flags: tjelinek: ovirt-4.1?
tjelinek: planning_ack?
rule-engine: devel_ack+
lsvaty: testing_ack+
Target Release: 4.1.3   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Cause: Validating the number of unmanaged USB controllers for a restarted/rerun VM was done after the VM was already started to run but before a host was scheduled for this VM. Consequence: In case the validation failed, an error was displayed in audit log with host_name="UNKNOWN" - since no host assigned. I.e.: Failed to restart VM <vm-name> on Host <UNKNOWN> Fix: Add this USB unmanaged controllers validation check to the Validate() phase before the host started to run. Result: In case of a validation failure, a popup window will be displayed and a log msg will be added - informing that this VM can't run (without any host information included in the message).
 Story Points: ---
Clone Of: Environment:
Last Closed: 2017-07-06 13:14:21 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: Virt RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Jiri Belka 2017-03-24 09:42:50 UTC 
Description of problem:

Again, strange '<UNKNOWN>' appears in events' messages...

See $summary and logs.

Version-Release number of selected component (if applicable):
ovirt-engine-4.1.1.5-0.1.el7.noarch

How reproducible:
just happens

Steps to Reproduce:
1. 
2.
3.

Actual results:
Failed to restart VM vm2-test-w2k12r2-1 on Host <UNKNOWN>

Expected results:
no UNNOWN, it's obviously wrong

Additional info:
Comment 2 Sharon Gratch 2017-05-09 11:27:50 UTC 
To reproduce this bug:

1. Add at least 2 un-managed USB controllers to an OLD VM <= 3.6, with USB policy set to DISABLED 
2. Restart the VM by HA or rerun it  - on a new 4.1 engine.

Since the USB devices validation of unmanaged USB controllers number failed in runVmCommand->initVM() phase (where there is still no host scheduled to run this VM), then an error is displayed in audit log with host=NULL (=UNKNOWN).
Comment 3 Jiri Belka 2017-06-19 12:14:26 UTC 
ok, ovirt-engine-4.1.3.4-0.1.el7.noarch

(i tried to reproduce it based on #2)