Re: [Qemu-devel] [PATCH] Remove debugging messages.

[Anthony Liguori <aliguori@us.ibm.com>]

On 07/19/2011 03:59 PM, Richard W.M. Jones wrote:
> On Tue, Jul 19, 2011 at 03:04:22PM -0500, Anthony Liguori wrote:
>> On 07/19/2011 02:23 PM, Richard W.M. Jones wrote:
>>> From: "Richard W.M. Jones"<rjones@redhat.com>
>>>
>>> When using qemu -machine accel=kvm:tcg, if KVM is not available you
>>> get a load of debugging output:
>>>
>>>    Could not access KVM kernel module: No such file or directory
>>>    failed to initialize KVM: No such file or directory
>>>    Back to tcg accelerator.
>>
>> If you ask for kvm, and it can't be initialized, then shouldn't we
>> alert the user about this?
>
> That's one way to look at it.
>
> Another is that libguestfs has specified that we want a "best effort".
> Give me KVM, if available - great!  If not, I don't really care, give
> me TCG.

Can't libguestfs just ignore the messages?

>
> The -machine option isn't expressive enough to say all these things of
> course.
>
> BTW, it seems in 0.15 that the -machine option is now required?  eg in
> this case where it seems totally pointless:
>
> $ qemu -nographic -device \?
> KVM not supported for this target
> No accelerator found!

Hrm, what's your HEAD because mine doesn't exhibit this behavior.

Regards,

Anthony Liguori

>
> This resulted in another bug and fix in libguestfs.
>
> http://git.annexia.org/?p=libguestfs.git;a=commitdiff;h=d82438431c1551610eb7d9945fa76d6387534582
>
> Rich.
>