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Vmss2core

Vmss2core

Summary

Vmss2core is a tool to convert VMware checkpoint state files into formats that third party debugger tools understand. It can handle both suspend (.vmss) and snapshot (.vmsn) checkpoint state files (hereafter referred to as a ‘vmss file’) as well as both monolithic and non-monolithic (separate .vmem file) encapsulation of checkpoint state data.

Features

The vmss2core tool can produce core dump files for the Windows debugger (WinDbg), Red Hat crash compatible core files, a physical memory view suitable for the Gnu debugger gdb, Solaris MDB (XXX), and Mac OS X formats. Debugging Virtual Machines with the Checkpoint to Core Tool provides the usage information for the vmss2core tool.

System Requirements

VMware Fusion Support Center FAQs and VMware Workstation 9 System Requirements provide the system requirements.

In addition, Windows hosts also need to have Visual Studio 2008 Service Pack 1 runtime installed. Please see http://www.microsoft.com/en-us/download/details.aspx?id=26368 for instructions on getting the runtime.

Workstation Host System Requirements:
https://www.vmware.com/pdf/ws80-getting-started.pdf

Fusion Host System Requirements:
https://www.vmware.com/pdf/fusion_getting_started_40.pdf

Instructions

For instructions on how to use vmss2core see Debugging Virtual Machines with the
Checkpoint to Core Tool

Video

Change Log

Engineers

Doug Covelli

Works in the Monitor group.

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3 thoughts on “Vmss2core

  1. Dolan

    Hi,

    The Windows download here appears to behave differently from the one installed on my work laptop with Workstation 9. I ran the command specified in the documentation (vmss2core -W .vmss .vmem); the old version ran perfectly on all Windows VMs, but the fresh download failed with the message
    “cannot locate cpu.CR[0] for VCPU 0.
    Cannot create memory.dmp
    Finished writing core. ”
    What changed and how should I alter my behavior to make it work?

    Reply

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