Re: [Qemu-devel] [PATCH V5] block/nfs: add support for setting debug level

[John Snow <jsnow@redhat.com>]

On 11/15/2015 10:25 PM, Stefan Hajnoczi wrote:
> On Fri, Nov 13, 2015 at 10:52:49AM +0100, Peter Lieven wrote:
>> Am 13.11.2015 um 10:45 schrieb Stefan Hajnoczi:
>>> On Mon, Nov 09, 2015 at 08:09:33AM +0100, Peter Lieven wrote:
>>>> recent libnfs versions support logging debug messages. Add
>>>> support for it in qemu through an URL parameter.
>>>>
>>>> Example:
>>>>  qemu -cdrom nfs://127.0.0.1/iso/my.iso?debug=2
>>>>
>>>> Signed-off-by: Peter Lieven <pl@kamp.de>
>>>> ---
>>>> v4->v5: add a comment in the code why we limit the debug level [Stefan]
>>>> v3->v4: revert to the initial version, but limit max debug level
>>>> v2->v3: use a per-drive option instead of a global one. [Stefan]
>>>> v1->v2: reworked patch to accept the debug level as a cmdline
>>>>         parameter instead of an URI parameter [Stefan]
>>>>
>>>>  block/nfs.c | 12 ++++++++++++
>>>>  1 file changed, 12 insertions(+)
>>> Hi Peter,
>>> Please use my official maintainer email address <stefanha@redhat.com>
>>> when CCing me.  I didn't spot the mail to GMail until after the QEMU 2.5
>>> hard freeze deadline.
>>
>> Okay. I think I used that email because you replayed to earlier versions
>> of this Patch from your Gmail address.
>>
>>>
>>> Only bug fixes are being merged for QEMU 2.5 now.  I'm sorry that this
>>> patch didn't make it.  My block-next branch will be opening on Monday
>>> and I'll merge this patch there for QEMU 2.6.
>>
>> Thats not critical in this case. I think same applies for the ATAPI stuff
>> we worked on? There you used also your GMail account. Or can this
>> be treated as a bugfix?
> 
> The ATAPI patches go through John Snow.  It's up to him whether they are
> considered a bug fix suitable for 2.5 or too risky.
> 
> Stefan
> 

I've tested them pretty thoroughly; I think they're safe (ATAPI-wise)
provided the buffered DMA helpers look sane (They look sane to me.) The
modifications to the giant atapi-return-code blob are well understood at
this point and are definitely fine.

--js