[Qemu-devel] [Bug 808588] Re: Netperf tests cause i82551 network down

[Amos Kong]

related fix in driver:
http://marc.info/?l=linux-netdev&m=118859393206222&w=3

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https://bugs.launchpad.net/bugs/808588

Title:
  Netperf tests cause i82551 network down

Status in QEMU:
  New

Bug description:
  1. boot up a guest with 82551 nic
  # qemu-kvm -net nic,model=i82551 ...
  2. launch netperf server in the guest
  3.on the host 
  for b in 32 64 128 256 512 1024 1460 2048 4096 8192  9000 16384 32768  65495 
65507
  do ./netperf -t TCP_STREAM -f m -H <guest ip> -P 0 -l 10 -- -m $b
  done

  for b in 32 64 128 256 512 1024 1460 2048 4096 8192  9000 16384 32768  65495 
65507
  do ./netperf -t UDP_STREAM -f m -H <guest ip> -P 0 -l 10 -- -m $b
  done

  
  Result:
  Guest network becomes down

  
  netperf client output:
  ./netperf -t TCP_STREAM -f m -H 10.66.9.39 -P 0 -l 10 -- -m 32
   87380  16384     32    10.97      19.61
  ./netperf -t TCP_STREAM -f m -H 10.66.9.39 -P 0 -l 10 -- -m 64
   87380  16384     64    11.55      79.68
  ./netperf -t TCP_STREAM -f m -H 10.66.9.39 -P 0 -l 10 -- -m 128
   87380  16384    128    10.16      14.20
  ./netperf -t TCP_STREAM -f m -H 10.66.9.39 -P 0 -l 10 -- -m 256
   87380  16384    256    11.17      12.85
  ./netperf -t TCP_STREAM -f m -H 10.66.9.39 -P 0 -l 10 -- -m 512
   87380  16384    512    10.01      16.38
  ./netperf -t TCP_STREAM -f m -H 10.66.9.39 -P 0 -l 10 -- -m 1024
  Interrupted system call
  netperf: remote error 4./netperf -t TCP_STREAM -f m -H 10.66.9.39 -P 0 -l 10 
-- -m 1460
  establish control: are you sure there is a netserver listening on 10.66.9.39 
at port 12865?
  establish_control could not establish the control connection from 0.0.0.0 
port 0 address family AF_UNSPEC to 10.66.9.39 port 12865 address family 
AF_UNSPEC
  ./netperf -t TCP_STREAM -f m -H 10.66.9.39 -P 0 -l 10 -- -m 2048

  
  qemu debug message:
  ....
  EE100   nic_receive             command 0x0000, link 0x3d3e6822, addr 
0xffffffff, size 1518
  EE100   nic_can_receive         0x29a0180
  EE100   nic_receive             0x29a0180 received broadcast, len=60
  EE100   nic_receive             Receive buffer (0 bytes) too small for data 
(60 bytes); data truncated
  EE100   nic_receive             command 0x8000, link 0x37b32022, addr 
0xffffffff, size 0
                                                   
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  EE100   nic_receive             receive: Running out of frames
                                                   ^^^^^^^^^^^^^^^^^^^^^^^^
  EE100   eepro100_write1         addr=Command/Status+1 val=0x20

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