Hello, I am investigating an issue with deleting snapshot in oVirt 4.3.10. Basically the delete snapshot operation fails and I am seeing following error in VDSM(vdsm-4.30.46) log - ====================================================================== ====== ================================================================= 2021-03-17 21:38:01,346-0400 INFO (jsonrpc/1) [virt.vm] (vmId='4b04639c-386e-463c-8a8a-dfd3bc46d306') Starting merge with jobUUID=u'e6206d9f-6899-40b7-857a-3be3dd42d77d', original chain=ac065664-ad6c-4ad6-aea2-9558df71d41d < 210900dd-ff19-4a00-8706-926cb192b0db < 273fc001-1c18-4234-b2b6-f0485e5d13ef < e1e10354-ae43-456f-9341-1bb81c5bf960 < 7985a853-4d47-428b-bb5b-b34a38cc57e0 (top), disk='sda', base='sda[2]', top='sda[1]', bandwidth=0, flags=8 (vm:5954) 2021-03-17 21:38:01,354-0400 ERROR (jsonrpc/1) [virt.vm] (vmId='4b04639c-386e-463c-8a8a-dfd3bc46d306') Live merge failed (job: e6206d9f-6899-40b7-857a-3be3dd42d77d) (vm:5960) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 5958, in merge bandwidth, flags) File "/usr/lib/python2.7/site-packages/vdsm/virt/virdomain.py", line 100, in f ret = attr(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line 131, in wrapper ret = f(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 94, in wrapper return func(inst, *args, **kwargs) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 719, in blockCommit if ret == -1: raise libvirtError ('virDomainBlockCommit() failed', dom=self) libvirtError: internal error: qemu block name 'json:{"backing": {"backing": {"backing": {"driver": "raw", "file": {"driver": "file", "filename": "/rhev/data-center/mnt/nash-nfs7:_nfs_shubha__ovirt__2_data/8bce5be7-a ede-4 743-b3fd-1c199880892f/images/eb3cb8f2-9544-472f-946b-646eab9c621f/ac06 5664-a d6c-4ad6-aea2-9558df71d41d"}}, "driver": "qcow2", "file": {"driver": "file", "filename": "/rhev/data-center/mnt/nash-nfs7:_nfs_shubha__ovirt__2_data/8bce5be7-a ede-4 743-b3fd-1c199880892f/images/eb3cb8f2-9544-472f-946b-646eab9c621f/2109 00dd-f f19-4a00-8706-926cb192b0db"}}, "driver": "qcow2", "file": {"driver": "file", "filename": "/rhev/data-center/mnt/nash-nfs7:_nfs_shubha__ovirt__2_data/8bce5be7-a ede-4 743-b3fd-1c199880892f/images/eb3cb8f2-9544-472f-946b-646eab9c621f/273f c001-1 c18-4234-b2b6-f0485e5d13ef"}}, "driver": "qcow2", "file": {"driver": "file", "filename": "/rhev/data-center/mnt/nash-nfs7:_nfs_shubha__ovirt__2_data/8bce5be7-a ede-4 743-b3fd-1c199880892f/images/eb3cb8f2-9544-472f-946b-646eab9c621f/e1e1 0354-a e43-456f-9341-1bb81c5bf960"}}' doesn 2021-03-17 21:38:01,368-0400 INFO (jsonrpc/1) [api.virt] FINISH merge return={'status': {'message': 'Merge failed', 'code': 52}} ====================================================================== ===== ================================================================= I found out that there is an issue logged here https://bugzilla.redhat.com/show_bug.cgi?id=1785939. However I am not able to see how it was fixed

and whether it was merged in oVirt. Where can I find the relevant commit (in vdsm and/or libvirt)? Thanks