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ESXi 5.5 and 6.0 hosts fail with a PSOD: VMCIEventDelayedDispatchCB@com (2149242)

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Symptoms

  • ESXi 5.x and 6.x hosts fail with a purple diagnostic screen (PSOD).
  • You are using vShield manager or VMware NSX in the environment.
  • You see entries similar to:

    cpu0:33459)@BlueScreen: #PF Exception 14 in world 33459:helper36-0 IP 0x0 addr 0x0
    PTEs:0x11ef5b027;0x14909c7027;0x0;
    cpu0:33459)Code start: 0x418028a00000 VMK uptime: 17:00:30:12.874
    cpu0:33459)0x41238acddee0:[0x0]<unknown> stack: 0xe1b438f756a15
    cpu0:33459)0x41238acddf10:[0x41802908ba4a]VMCIEventDelayedDispatchCB@com.vmware.vmci#2+0x1e stack: 0x410a12b5e
    cpu0:33459)0x41238acddf30:[0x4180290878ae]VMCIDelayedWorkCB@com.vmware.vmci#2+0x12 stack: 0x0
    cpu0:33459)0x41238acddfd0:[0x418028a6165a]helpFunc@vmkernel#nover+0xab6 stack: 0x0
    cpu0:33459)0x41238acddff0:[0x418028c53602]CpuSched_StartWorld@vmkernel#nover+0xfa stack: 0x0
    cpu0:33459)base fs=0x0 gs=0x418040000000 Kgs=0x0
    cpu0:33459)vmkernel 0x0 .data 0x0 .bss 0x0


  • In the vmkernel.log file, you see these DVFilter warnings before PSOD:

    cpu20:33569)WARNING: DVFilter: 1118: Couldn't enable keepalive: Not supported
    cpu26:3082898)World: 14296: VC opID hostd-be2b maps to vmkernel opID 8436dfd3
    cpu20:33569)WARNING: DVFilter: 1118: Couldn't enable keepalive: Not supported
    cpu30:34109)World: 14296: VC opID hostd-d102 maps to vmkernel opID 8dd1ae8d
    cpu20:33569)WARNING: DVFilter: 1118: Couldn't enable keepalive: Not supported
    cpu20:33569)DVFilter: 310: Retry on 307 bytes long message. Trying again later
    cpu4:3082899)World: 14296: VC opID hostd-7eae maps to vmkernel opID 636203f1
    cpu20:33569)WARNING: DVFilter: 1118: Couldn't enable keepalive: Not supported
    cpu20:33569)DVFilter: 310: Retry on 307 bytes long message. Trying again later
    cpu20:33569)WARNING: DVFilter: 1118: Couldn't enable keepalive: Not supported
    cpu20:3082896)World: 14296: VC opID hostd-f398 maps to vmkernel opID d4c2b855


Cause

This issue occurs due to race condition in dvfilter vmci socket deregistration.

Resolution

This issue is resolved in ESXi 5.5 Patch 8 and ESXi 6.0 Patch 3.

If you have VMware NSX 6.2.2 version in your environment then do not upgrade to ESXi 6.0 Patch 3, instead apply the latest patch ESXi600-201610001. For more information see, vsfwd connection to the NSX Manager fails.

Alternatively, you can upgrade the environment to VMware NSX 6.2.3 or later and ESXi 6.0 Patch 3 or later.

See Also

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.

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