[Bug 43355] New: kvm error and make network slow

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

https://bugzilla.kernel.org/show_bug.cgi?id=43355

           Summary: kvm error and make network slow
           Product: Virtualization
           Version: unspecified
    Kernel Version: 2.6.32
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: kvm
        AssignedTo: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx
        ReportedBy: zhuxuegang@xxxxxxxxxx
        Regression: No


I user kvm and make network bridge.use iperf to test network.
E:\xuegang\tools\iperf>call iperf.exe -d   -c 10.28.168.207 -p 3377  -i 1 -t
600
WARNING: option -d is not valid for server mode
------------------------------------------------------------
Client connecting to 10.28.168.207, TCP port 3377
TCP window size: 8.00 KByte (default)
------------------------------------------------------------
[220] local 10.28.168.44 port 51751 connected with 10.28.168.207 port 3377
[ ID] Interval       Transfer     Bandwidth
[220]  0.0- 1.0 sec  34.9 MBytes   293 Mbits/sec
[220]  1.0- 2.0 sec  34.3 MBytes   288 Mbits/sec
[220]  0.0- 3.0 sec   113 MBytes   319 Mbits/sec

E:\xuegang\tools\iperf>call iperf.exe -d   -c 10.28.168.207 -p 3377  -i 1 -t
600
WARNING: option -d is not valid for server mode
------------------------------------------------------------
Client connecting to 10.28.168.207, TCP port 3377
TCP window size: 8.00 KByte (default)
------------------------------------------------------------
[220] local 10.28.168.44 port 55627 connected with 10.28.168.207 port 3377
[ ID] Interval       Transfer     Bandwidth
[220]  0.0- 1.0 sec   136 KBytes  1.11 Mbits/sec
[220]  1.0- 2.0 sec   160 KBytes  1.31 Mbits/sec
[220]  2.0- 3.0 sec   160 KBytes  1.31 Mbits/sec
[220]  0.0- 3.6 sec   528 KBytes  1.20 Mbits/sec

E:\xuegang\tools\iperf>

kvm error:
[root@kvm test_2]# 
Message from syslogd@kvm at Jun  8 11:43:00 ...
 kernel:Disabling IRQ #19

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