Re: [Qemu-devel] [Bug 1673722] [NEW] Reading register at offset. It is not fully implemented warning make VM impossible to use

[Jason Wang <jasowang@redhat.com>]

On 2017年03月20日 22:58, Peter Maydell wrote:
> On 20 March 2017 at 14:20, Stefan Hajnoczi <stefanha@gmail.com> wrote:
>> On Fri, Mar 17, 2017 at 09:47:14AM -0000, Julien Duponchelle wrote:
>>> Hi,
>>>
>>> Since this commit:
>>> https://github.com/qemu/qemu/commit/bc0f0674f037a01f2ce0870ad6270a356a7a8347
>>>
>>> We can no longer use the IOSvL2 image from Cisco. The problem is we got a lot of warning message saying:
>>> e1000: Reading register at offset: 0x00002410. It is not fully implemented.
>>>
>>> User got so much of this warning that they can't use the VM.
>> CCing the author and maintainers.
>>
>> DBGOUT() is compiled in by default.  Warnings that can be triggered at a
>> high rate by the guest should be off by default or use a
>> printf_once()-style macro so they are only printed once and not again.
>>
>> Leonid: do you want to adjust e1000 DBGOUT() usage to avoid printing
>> guest-triggerable messages by default?
> If we want to report "whoops, we don't implement this yet" messages then
> the recommended way to do that is
>   qemu_log_mask(LOG_UNIMP, "....");
>
> (these are not reported by default but only if the user asks for them.)
>
> thanks
> -- PMM
>

I don't see a reason that enabling E1000E_DEBUG by default. How about 
just disable it by default?

Thanks