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

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

[Julien Duponchelle]

Public bug reported:

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.

Thanks for the help

** Affects: qemu
     Importance: Undecided
         Status: New


** Tags: e1000

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Title:
  Reading register at offset. It is not fully implemented warning make
  VM impossible to use

Status in QEMU:
  New

Bug description:
  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.

  Thanks for the help

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

[Stefan Hajnoczi]

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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?

Stefan

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

[Peter Maydell]

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

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 <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

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

[Julien Duponchelle]

I sent a patch to the mailing list:
http://lists.nongnu.org/archive/html/qemu-devel/2017-05/msg01294.html

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https://bugs.launchpad.net/bugs/1673722

Title:
  Reading register at offset. It is not fully implemented warning make
  VM impossible to use

Status in QEMU:
  New

Bug description:
  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.

  Thanks for the help

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1673722/+subscriptions

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

[Thomas Huth]

I think this has been fixed by:
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=b4053c64833


** Changed in: qemu
       Status: New => Fix Released

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1673722

Title:
  Reading register at offset. It is not fully implemented warning make
  VM impossible to use

Status in QEMU:
  Fix Released

Bug description:
  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.

  Thanks for the help

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1673722/+subscriptions