Re: [Qemu-devel] [Bug 1179731] [NEW] is networking broken on windows hosts?

[Paolo Bonzini <pbonzini@redhat.com>]

Il 15/05/2013 03:38, TeLeMan ha scritto:
> On Tue, May 14, 2013 at 7:55 PM, Paolo Bonzini <pbonzini@redhat.com> wrote:
>> Il 14/05/2013 13:48, Paolo Bonzini ha scritto:
>>> Il 14/05/2013 13:39, TeLeMan ha scritto:
>>>> On Tue, May 14, 2013 at 6:46 PM, Paolo Bonzini <pbonzini@redhat.com> wrote:
>>>>> Il 14/05/2013 12:24, TeLeMan ha scritto:
>>>>>> On Tue, May 14, 2013 at 3:51 PM, Stefan Hajnoczi <stefanha@gmail.com> wrote:
>>>>>>> On Tue, May 14, 2013 at 12:02:24AM -0000, therock247uk wrote:
>>>>>>>> just wondering as i just compiled the latest git and qemu goes into none
>>>>>>>> responding mode when i try to do any networking stuff on guests (both
>>>>>>>> linux and windows)
>>>>>>>
>>>>>>> Works for me on qemu.git/master on Linux:
>>>>>>>
>>>>>>>   $ git rev-parse HEAD
>>>>>>>   b087143b4d010451208264b7c841436aafe1cbb1
>>>>>>>   $ x86_64-softmmu/qemu-system-x86_64 -m 1024 -enable-kvm -cpu host \
>>>>>>>           -drive if=virtio,cache=none,file=test.img
>>>>>>>
>>>>>>> Please include more information, like the QEMU command-line and commit
>>>>>>> ID.
>>>>>>>
>>>>>>> Stefan
>>>>>>>
>>>>>>
>>>>>> This regression occurs on the Windows host. SLIRP hangs in sorecvfrom().
>>>>>
>>>>> Can you bisect it?
>>>>>
>>>>> Paolo
>>>>>
>>>> The first break is the commit
>>>> 5e3bc735d93dd23f074b5116fd11e1ad8cd4962f. But it need more packets
>>>> than HEAD to reproduce this regression.
>>>
>>> Please check if this partial revert of that commit fixes it:
>>
>> Yeah, this should work...  WSAEventSelect is edge-triggered and the
>> event will not be signaled if the socket handler does not consume all
>> the data in the socket buffer.
>
> Unfortunately, it does not work.

Ok... as you can see the patch is just moving a block of code just
before g_main_context_prepare(context, &max_priority).

Can you please try doing the same on top of these six commits:

134a03e0b3d34b01b68107104c525c3bff1211d4
cbff4b342b000a7642125dbdabf61113e05eee44
48ce11ff972c733afaed3e2a2613a2e56081ec92
8917c3bdba37d6fe4393db0fad3fabbde9530d6b
a3e4b4a8091cc4fcf7cb619570c72c54c2d6a6e9
9cbaacf999b01b27dc3a22502705178057af66de

Paolo