RE: [PATCH]KVM: kvm/ia64: select ANON_INODES PREEMPT_NOTIFIERS, once

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Avi Kivity wrote:
> Zhang, Xiantao wrote:
>> But if users don't configure it @ building kernel, they can't
>> exercise kvm unless re-configure and re-build the host kernel. 
>> Generally, we should allow users to build kvm in the form of
>> modules, and insert to host kernels without other dependcies.   BTW,
>> we often meet such fails and have to do rebuild.  :(
> 
> 
> If users don't configure networking, they can't compile any drivers.
> 
> Sorry, that's how the kernel works.  btw, on x86 we manage to run even
> without preempt notifiers, but a lot of pain is involved.

Yes, we  have to do a lot of work to make it work. 

> In practice, I don't expect a problem.  Most users get their kernels
> from a distribution.  You should talk to ia64 distribution vendors to
> make sure they enable kvm in their ia64 2.6.26+ kernels.

Agree.  Could we change default configration to make preempt_notifier
configured if no more overhead introduced ?  I noticed kvm/s390 has did
in this way.   

> error compiling committee.c: too many arguments to function
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