Re: [Qemu-devel] BUG - qdev - partial loss of network connectivity

[Leszek Urbanski]

<address@hidden>; from Anthony Liguori on Wed, Sep 22, 2010 at 13:35:35 -0500

> >>Is the guest kernel vanilla 2.6.32.22 or is it a distro kernel?  If the
> >>later, what distro?
> >>
> >>The difference in the two invocations is that with the -device syntax,
> >>you're getting offload features enabled.
> >>     
> >It's vanilla 2.6.32.22, but I also reproduced this on Debian's 2.6.32-23
> >(based on 2.6.32.21).
> >
> >If offload is the only difference, I'll play with different offload
> >options and check which one causes it.
> >   
> 
> It's not technically the only difference but it's the most likely 
> culprit IMHO.

udp fragmentation offload is definitely the culprit.


-- 
Leszek "Tygrys" Urbanski, SCSA, SCNA
 "Unix-to-Unix Copy Program;" said PDP-1. "You will never find a more
  wretched hive of bugs and flamers. We must be cautious." -- DECWARS
     http://cygnus.moo.pl/ -- Cygnus High Altitude Balloon