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Description of problem:
Create a transient VM, then shut down it, the page will turn white

Version-Release number of selected components (if applicable):
cockpit-234-1.el8.x86_64
cockpit-machines-235-1.el8.noarch
libvirt-dbus-1.3.0-2.module+el8.3.0+6423+e4cb6418.x86_64

How reproducible:
100%

Steps to Reproduce:
1 Create a transient VM
2 Shut down the VM

Actual results:
1 After step 2, the page will turn white

Expected results: 
1 After step 2,the page will be directed to the VM list page

Additional info:

Fix sent upstream with https://github.com/cockpit-project/cockpit/pull/15158

Pre-verified Versions:
cockpit-machines-236-1.el8.noarch
cockpit-236-1.el8.x86_64
libvirt-dbus-1.3.0-2.module+el8.3.0+6423+e4cb6418.x86_64

Pre-verified Steps:
1 Create a transient VM
2 Shut down the VM

Pre-verified Results:
1 The page will be directed to the VMs list page, then the VM will disappear


According to the results, change ‘Verified’ status to ‘TESTED’.

Test Versions:
cockpit-machines-237-1.el8.noarch
cockpit-236-1.el8.x86_64
libvirt-dbus-1.3.0-2.module+el8.3.0+6423+e4cb6418.x86_64


Test Steps:
1 Create a transient VM, and go to the VM detail page
2 Shut down the VM

Test Results:
1 The page will be directed to the VMs list page, then the VM will disappear

According to the results, move the status to VERIFIED.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (cockpit-appstream bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:1875