Starwind V2V Converter Crashes

VM image converter (VMDK, VHD, VHDX, IMG, RAW, QCOW and QCOW2), P2V migrator

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adns
Posts: 27
Joined: Thu Sep 24, 2009 2:08 pm
Location: Asheville NC

Tue Jul 01, 2025 8:14 pm

I am attempting to convert from ESXi to Hyper-V with the Starwind V2V Converter tool, however I am finding the app to be very unreliable. It crashes regularly, sometimes in the middle of a conversion and sometimes it just crashes if I open it and do nothing for about 30 minutes.

Here are the Windows event log errors:

Code: Select all

Faulting application name: V2V_Converter.exe, version: 9.0.1.757, time stamp: 0x68341ce6
Faulting module name: SSLEAY32MD.dll, version: 1.0.2.12, time stamp: 0x5929a095
Exception code: 0xc0000005
Fault offset: 0x00000000000113cb
Faulting process id: 0x1570
Faulting application start time: 0x01dbeabf5fbcb07a
Faulting application path: C:\Program Files\StarWind Software\StarWind V2V Converter\V2V_Converter.exe
Faulting module path: C:\Program Files\StarWind Software\StarWind V2V Converter\SSLEAY32MD.dll
Report Id: 066b61fa-c9af-4be1-984d-22cbc827c445
Faulting package full name: 
Faulting package-relative application ID: 
and here is another

Code: Select all

Fault bucket 1860676949570478794, type 4
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: V2V_Converter.exe
P2: 9.0.1.757
P3: 68341ce6
P4: SSLEAY32MD.dll
P5: 1.0.2.12
P6: 5929a095
P7: c0000005
P8: 00000000000113cb
P9: 
P10: 

Attached files:
\\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WERD4E4.tmp.WERInternalMetadata.xml

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_V2V_Converter.ex_9faba09f522917fa3fcf03085a6366cc6149f93_fae0c975_01c749a7

Analysis symbol: 
Rechecking for solution: 0
Report Id: 066b61fa-c9af-4be1-984d-22cbc827c445
Report Status: 0
Hashed bucket: 82a3bf401a0d552ae9d273d3cce7e2ca

And here is a log from when it crashed in the middle of a conversion:

Code: Select all

7/1 12:58:59.555 1198 Facility ???INFO: CV2V_ConverterApp::InitInstance: SetDllDirectory: C:\Program Files\StarWind Software\StarWind V2V Converter\lib
7/1 12:58:59.555 1198 Facility ???INFO: CV2V_ConverterApp::InitInstance: File Version: 9.0.1.757
7/1 12:58:59.575 1198 Facility ???INFO: CV2V_ConverterApp::InitInstance: Load language IDR_XML_ENGLISH
7/1 12:58:59.575 1198 Facility ???INFO: CV2V_ConverterApp::InitInstance: Set current language English
7/1 12:58:59.593 1198 Facility ???INFO: CPS_V2V_Converter::CPS_V2V_Converter: Version MajorVersion 10, MinorVersion 0, BuildNumber 14393
7/1 12:58:59.599 1198 Facility ???INFO: WrapperHyperV::WrapperHyperV: LoadLibrary C:\Windows\system32\wbem\wmiutils.dll - 8baa0000
7/1 12:58:59.610 1198 Facility ???INFO: WrapperHyperV::WrapperHyperV: LoadLibrary C:\Windows\system32\wbem\wmiutils.dll - 8baa0000
7/1 13:49:54.742 1198 Facility ???INFO: ICPPage::OnWizardNext: SetActivePage - eESXConnection
7/1 13:50:18.961 a34 Facility ???INFO: WrapperESXI::connect: m_url - https://10.25.0.10/sdk
7/1 13:50:19.010 a34 Facility ???INFO: WrapperESXI::connect: fullName - Administrator, key - 52dcd2b8-1cbe-0b3b-470c-25820523477a
7/1 13:50:19.011 a34 Facility ???INFO: VMConverter::ESXIConverter::Connection: No_timeout ESX connection
7/1 13:50:19.011 1210 Facility ???INFO: VMConverter::ESXIConverter::Connection::<lambda_51a4e26504ac6476d417d538947b592f>::operator (): Worker thread started.
7/1 13:50:19.013 1198 Facility ???INFO: ICPPage::OnWizardNext: SetActivePage - eInputVM
7/1 13:50:19.350 1198 Facility ???INFO: VMConverter::ESXIConverter::GetHostListInfo: ESX version: 8.0.3
7/1 13:50:23.657 1198 Facility ???INFO: ICPPage::OnWizardNext: SetActivePage - eLocationTo
7/1 13:50:25.390 1198 Facility ???INFO: ICPPage::OnWizardNext: SetActivePage - eVMSettingsAzure
7/1 13:50:33.232 7f0 Facility ???INFO: WrapperHyperV::connect: Host - \\10.25.0.27\root\virtualization\v2
7/1 13:50:33.416 7f0 Facility ???INFO: WrapperHyperV::init_version: HyperV version: 10.0.26100
7/1 13:50:33.423 1198 Facility ???INFO: ICPPage::OnWizardNext: SetActivePage - eHDDSelect
7/1 13:50:47.440 1198 Facility ???INFO: ICPPage::OnWizardNext: SetActivePage - eHYPERVConnectionTo
7/1 13:50:47.453 1734 Facility ???INFO: CPPConverting::Convert: InConvertType: 6, OutConvertType: 8
7/1 13:50:47.453 1734 Facility ???INFO: CPPConverting::ConvertDisks: pathInput: [Unity-PDC-2016] PDC-2016/PDC-2016.vmdk, pathOutput: C:\ClusterStorage\PDC-2016\PDC-2016\Virtual Hard Disks\PDC-201.vhd
7/1 13:50:48.141 1734 Facility ???INFO: ESXVmdk::ParseFile: sFilename - [Unity-PDC-2016] PDC-2016/PDC-2016.vmdk
7/1 13:50:48.141 1734 Facility ???INFO: ESXVmdk::ParseFile: m_cvmxSpec - moref=7
7/1 13:50:48.151 1734 Facility ???INFO: ESXVmdk::ParseFile: sslThumbprint - 34:F6:E6:92:D2:C4:40:49:54:79:DE:6F:01:D3:1F:3B:93:CD:86:CB
7/1 13:50:49.215 1734 Facility ???INFO: CPPConverting::ConvertDisks: CreateInputImage: 0
7/1 13:50:49.498 1734 Facility ???INFO: CVHDSparseExtent::New: Write Footer1
7/1 13:50:49.506 1734 Facility ???INFO: CVHDSparseExtent::New: Write Header
7/1 13:50:49.506 1734 Facility ???INFO: CVHDSparseExtent::New: Write BAT
7/1 13:50:49.512 1734 Facility ???INFO: CVHDSparseExtent::New: Write Footer2
7/1 13:50:49.513 1734 Facility ???INFO: CPPConverting::ConvertDisks: CreateOutputImage: 0
7/1 13:50:49.774 1734 Facility ???INFO: CVHDSparseExtent::Write: Create BuffNewBlock
7/1 13:55:19.016 1210 Facility ???INFO: VMConverter::ESXIConverter::Connection::<lambda_51a4e26504ac6476d417d538947b592f>::operator (): Timeout ESX connection. Performing updates.
7/1 14:00:19.024 1210 Facility ???INFO: VMConverter::ESXIConverter::Connection::<lambda_51a4e26504ac6476d417d538947b592f>::operator (): Timeout ESX connection. Performing updates.
7/1 14:05:19.028 1210 Facility ???INFO: VMConverter::ESXIConverter::Connection::<lambda_51a4e26504ac6476d417d538947b592f>::operator (): Timeout ESX connection. Performing updates.
7/1 14:10:19.033 1210 Facility ???INFO: VMConverter::ESXIConverter::Connection::<lambda_51a4e26504ac6476d417d538947b592f>::operator (): Timeout ESX connection. Performing updates.
7/1 14:16:13.473 1210 Facility ???INFO: VMConverter::ESXIConverter::Connection::<lambda_51a4e26504ac6476d417d538947b592f>::operator (): Timeout ESX connection. Performing updates.
I've tried running it on two different computers now (one Windows 10 and the other Server 2016) and the same thing happens in both cases. Any ideas or suggestions?
yaroslav (staff)
Staff
Posts: 3625
Joined: Mon Nov 18, 2019 11:11 am

Tue Jul 01, 2025 8:24 pm

Hi,

Thanks for your post. Please expand on the conversion scenario:
-source image type, destination image type.
-Are you converting a VM or a single disk?
-What is the source and destination host hypervisor versions (specific update levels, if possible)
Thanks!
adns
Posts: 27
Joined: Thu Sep 24, 2009 2:08 pm
Location: Asheville NC

Tue Jul 01, 2025 8:39 pm

Source is ESXi v8.0.3, destination is HyperV on Windows Server 2025. I am converting the entire VMs, but I did try just converting a disk and the app still crashed. The VM is powered off at the time of the conversion. The app typically crashes after about 15 - 20 minutes into the conversion.
Last edited by adns on Tue Jul 01, 2025 8:53 pm, edited 1 time in total.
yaroslav (staff)
Staff
Posts: 3625
Joined: Mon Nov 18, 2019 11:11 am

Tue Jul 01, 2025 8:45 pm

Thanks!
I will forward the logs to the dev team. Do you have an older version?
adns
Posts: 27
Joined: Thu Sep 24, 2009 2:08 pm
Location: Asheville NC

Tue Jul 01, 2025 8:53 pm

In the log I shared above it indicates: 9.0.1.757
yaroslav (staff)
Staff
Posts: 3625
Joined: Mon Nov 18, 2019 11:11 am

Tue Jul 01, 2025 8:58 pm

Sorry for misunderstanding, I was trying to say "do you have an older V2V converter version saved somewhere so you can downgrade and try with an older build".
adns
Posts: 27
Joined: Thu Sep 24, 2009 2:08 pm
Location: Asheville NC

Tue Jul 01, 2025 9:02 pm

Ah! No I do not. I'm happy to try an older version if you can point me to the URL.

Thanks!
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