Red Hat Bugzilla – Bug 476452
8139too in Fedora 10 KVM guest fails after some transfers
Last modified: 2009-02-02 13:17:32 EST
Description of problem:
Host is Fedora 10 x86_64 ; guest is Fedora 10 x86_64 in KVM.
After doing some network transfers, either by scp, with iperf, or with nc, the guest loses all network connectivity. Sometimes a "service network restart" will restore the network, most of the time not.
Version-Release number of selected component (if applicable):
kernel-220.127.116.11-117.fc10 ; also tried kernel-18.104.22.168-155.fc10 in both host and guest.
always after some transfers (it always happens if I try to transfer a 1GB file, it will stall between 30MB and 200MB transferred).
Steps to Reproduce:
1. install a Fedora 10 x86_64 KVM guest in a Fedora 10 x86_64 KVM host
2. scp a 1GB+ file from the host to the guest
3. watch the transfer begin correctly then stall after some time
transfer stalls then guest has no network connectivity
Switching to another network driver fixes the problem :
"rmmod 8139too" and then either "modprobe 8139cp" or "modprobe e1000".
However, the main problem is that 8139too seems the default driver for KVM guests...
This awfully looks like :
*** This bug has been marked as a duplicate of bug 469859 ***