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Vmss2core

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.

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  • #3
    Open

    Windows server 2016 Memory dump fails

    profile picture of Oscar Zuniga
    Oscar Zuniga

    May 27, 2019

    I am having problems to generate Windows Server 2012 memory dump.

    C:\Users\ozuniga\Downloads\vsss>vmss2core-sb-8456865.exe -W NFS-8ebaa797.vmss NFS-8ebaa797.vmem
    vmss2core version 8456865 Copyright (C) 1998-2017 VMware, Inc. All rights reserved.
    region[0]: start=0 end=c0000000.
    region[1]: start=100000000 end=140000000.
    Cannot read long mode root CR3=134f6b000 rootOffs=f4f6b000.
    Cannot translate linear address fffff78000000000.
    Cannot read Guest memory.
    Cannot recognize Windows VM.
    Error parsing Windows data.
    Cannot create memory.dmp
    Finished writing core.

  • profile picture of obrookes
    obrookes

    Jul 02, 2019

    I get the same with this from a Server 2016 VM snapshot from esxi 6.0 :

    vmss2core-mac64 -W14393 vapp-sqls4-Snapshot50.vmsn vapp-sqls4-Snapshot50.vmem

  • profile picture of Tom Brumleve
    Tom Brumleve

    Mar 17, 2020

    Also confirmed it does not work for Windows Server 2019 VM.

    vmss2core-sb-8456865.exe -W lvdcdc3-1-snapshot1.vmsn lvdcdc3-1-snapshot1.vmemvmss2core version 8456865 Copyright (C) 1998-2017 VMware, Inc. All rights reserved.
    region[0]: start=0 end=c0000000.
    region[1]: start=100000000 end=1040000000.
    Cannot recognize Windows VM.
    Error parsing Windows data.
    Cannot create memory.dmp
    Finished writing core.