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ESXi 5.1 host fails with a purple diagnostic screen when powering on a virtual machine with a PCI pass-through device (2039030)

Symptoms

  • ESXi 5.1 host fails with a purple diagnostic screen when a virtual machine configured with a PCI pass-through device is powered on
  • In the backtrace, you see entries similar to:

    T10:48:50.979Z cpu13:11538)Backtrace for current CPU #13, worldID=11538, ebp=0x41223449bcd8
    T10:48:50.980Z cpu13:11538)0x41223449bcd8:[0x418035af095c]PCI_GetExtCapIdx@vmkernel#nover+0x2b stack: 0x41223449bd38, 0x418035
    T10:48:50.981Z cpu13:11538)0x41223449bd48:[0x4180358badd2]VMKPCIPassthru_GetPCIInfo@vmkernel#nover+0x335 stack: 0x230001700301
    T10:48:50.981Z cpu13:11538)0x41223449beb8:[0x418035ca2c61]UW64VMKSyscallUnpackPCIPassthruGetPCIInfo@<None>#<None>+0x28 stack:
    T10:48:50.982Z cpu13:11538)0x41223449bef8:[0x418035c76791]User_LinuxSyscallHandler@<None>#<None>+0x17c stack: 0x41803584cc70,
    T10:48:50.982Z cpu13:11538)0x41223449bf18:[0x4180358a82be]User_LinuxSyscallHandler@vmkernel#nover+0x19 stack: 0x3ffd5836490, 0
    T10:48:50.983Z cpu13:11538)0x41223449bf28:[0x418035910064]gate_entry@vmkernel#nover+0x63 stack: 0x10b, 0x0, 0x0, 0x48d, 0x10e4
    T10:48:51.043Z cpu13:11538)^[[45m^[[33;1mVMware ESXi 5.1.0 [Releasebuild-838463 x86_64]^[[0m


Resolution

This is a known issue in ESXi 5.1. The workaround is to reinstall ESX 5.0.
 
This issue is resolved in ESXi 5.1, Patch ESXi510-201212401-BG.

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