| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="ts_win-guest-bluescreen-smp">
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| 4 | <title>Windows 0x101 Bluescreens with SMP Enabled (IPI Timeout)</title>
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| 5 |
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| 6 | <body>
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| 7 | <p>
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| 8 | If a VM is configured to have more than one processor
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| 9 | (symmetrical multiprocessing, SMP), some configurations of
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| 10 | Windows guests crash with an 0x101 error message, indicating a
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| 11 | timeout for interprocessor interrupts (IPIs). These interrupts
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| 12 | synchronize memory management between processors.
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| 13 | </p>
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| 14 | <p>
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| 15 | According to Microsoft, this is due to a race condition in
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| 16 | Windows. A hotfix is available from Microsoft.
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| 17 | </p>
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| 18 | <p>
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| 19 | If this does not help, please reduce the number of virtual
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| 20 | processors to 1.
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| 21 | </p>
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| 22 | </body>
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| 23 |
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| 24 | </topic>
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