[Xen-devel] [bug 1862] Large file remote copy in Windows guest (no GPL PV driver) cause networking broken

["Liu, SongtaoX" <songtaox.liu@xxxxxxxxx>]

Hi, all,
We encountered a bug, large file remote copy in Windows guest (no GPL PV 
driver) cause networking broken,
bugzilla link: 
http://bugzilla-archived.xenproject.org//bugzilla/show_bug.cgi?id=1862.

When copying large file from remote server in windows guest, the guest emulated 
rtl8139 network connection will lose, cannot recover.
Detail steps:
1. create a win7 or win8 guest using "xl create win7.hvm" with "vif=[ 
'type=ioemu, bridge=xenbr0' ]";
2. check the network works by "ping -t $lan_server; 
3. copy large file from remote server;
4. after serveral seconds, the network connection will lose, the "ping -t 
$lan_server" will show "Request timed out, Destination host unreachable";
5. if disable and re-enable the local area connection, invalid IP 169.254.xx.xx 
got

Regards
Carl(Songtao)

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