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

[Jason Wang]

On 2017年03月20日 22:58, Peter Maydell wrote:
> On 20 March 2017 at 14:20, Stefan Hajnoczi <address@hidden> 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