On 08/09/2011 06:33 PM, Nick wrote:
Hi, Just joined this list, looking for leads to solve a similar-sounding problem (guest processes hanging for seconds or minutes when host IO load is high). I'll say more in a separate email, but I caught the end of this thread and wanted to ask about kvm-clock. Naively I'd have thought that using the wrong clock would not actually *cause* hangs like this. Or is that what you're implying?
Using the wrong clock easily causes hangs. The system schedules a wakeup in 3 ms, wrong clock causes it to wakeup in 3 years, you get a hang for (3 years - 3 ms).
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