Article ID: 116563, created on Jul 26, 2013, last review on May 8, 2014

  • Applies to:
  • Virtuozzo


There is PCS crash:

<1>[   64.542483] /drv/ HypVtd.c:3531   [vtdParseDmarHardwareUnit] Hardware unit at 0xffffc90000008050 >>> INCLUDE_ALL <<<
<1>[   64.542487] /drv/ HypVtd.c:3533   [vtdParseDmarHardwareUnit] Register base address is 0x00000000FD040000
<1>[   64.542493] /drv/ HypVtd.c:3566   [vtdParseDmarHardwareUnit] Only one INCLUDE_ALL unit is allowed
<1>[   64.542514] BUG: unable to handle kernel NULL pointer dereference at (null)

It is only possible to start the hardware node without parallels-server service


There is an issue with VT-d(Intel Virtual technology for Directed I/O) and current kernel.


To workaround this issue, you need to disable VT-d support in BIOS. In case it is not possible to disable - contact Parallels Technical Support to prepare kernel for your installation.

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