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SubjectRe: [GIT PULL] perf changes for v3.8
On 12/13/12 12:30 AM, Ingo Molnar wrote:
> * David Ahern <> wrote:
>>> But doing it this way was wrong. Switch that "exclude_guest"
>>> attribute around, and admit that "H" was bogus, and that the
>>> right thing to do was to add a "V" flag that sets the
>>> "force_guest" flag instead.
>> I understand this is annoying. [...]
> It's not annoying, it's outright broken - it's a regression that
> we'll fix.

One of the problems is that existing binaries set the exclude_guest flag

So, requesting users to update their binaries if they want to use
precise sampling is not acceptable. A 100% catastrophic failure of all
running VMs is acceptable? All VMs will crash and there is no direct
causal relationship.


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