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Date:      Wed, 12 Dec 2018 00:20:22 +0000
From:      bugzilla-noreply@freebsd.org
To:        wireless@FreeBSD.org
Subject:   [Bug 233949] [if_rtwn] rwtn packet loss 10-25%
Message-ID:  <bug-233949-21060@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D233949

            Bug ID: 233949
           Summary: [if_rtwn] rwtn packet loss 10-25%
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: wireless
          Assignee: wireless@FreeBSD.org
          Reporter: mr_beaner_2003@yahoo.com

RE: 218527, is not fixed. I am testing with an EDIMAX N150 Nano USB Adapter.

# freebsd-version
13.0-CURRENT

# usbconfig -d ugen1.2 dump_all_desc=20
ugen1.2: <Realtek 802.11n WLAN Adapter> at usbus1, cfg=3D0 md=3DHOST spd=3D=
HIGH
(480Mbps) pwr=3DON (500mA)

  bLength =3D 0x0012=20
  bDescriptorType =3D 0x0001=20
  bcdUSB =3D 0x0200=20
  bDeviceClass =3D 0x0000  <Probed by interface class>
  bDeviceSubClass =3D 0x0000=20
  bDeviceProtocol =3D 0x0000=20
  bMaxPacketSize0 =3D 0x0040=20
  idVendor =3D 0x7392=20
  idProduct =3D 0x7811=20
  bcdDevice =3D 0x0200=20
  iManufacturer =3D 0x0001  <Realtek>
  iProduct =3D 0x0002  <802.11n WLAN Adapter>
  iSerialNumber =3D 0x0003  <00e04c000001>
  bNumConfigurations =3D 0x0001=20

 Configuration index 0

    bLength =3D 0x0009=20
    bDescriptorType =3D 0x0002=20
    wTotalLength =3D 0x002e=20
    bNumInterfaces =3D 0x0001=20
    bConfigurationValue =3D 0x0001=20
    iConfiguration =3D 0x0000  <no string>
    bmAttributes =3D 0x00a0=20
    bMaxPower =3D 0x00fa=20

    Interface 0
      bLength =3D 0x0009=20
      bDescriptorType =3D 0x0004=20
      bInterfaceNumber =3D 0x0000=20
      bAlternateSetting =3D 0x0000=20
      bNumEndpoints =3D 0x0004=20
      bInterfaceClass =3D 0x00ff  <Vendor specific>
      bInterfaceSubClass =3D 0x00ff=20
      bInterfaceProtocol =3D 0x00ff=20
      iInterface =3D 0x0000  <no string>

     Endpoint 0
        bLength =3D 0x0007=20
        bDescriptorType =3D 0x0005=20
        bEndpointAddress =3D 0x0081  <IN>
        bmAttributes =3D 0x0002  <BULK>
        wMaxPacketSize =3D 0x0200=20
        bInterval =3D 0x0000=20
        bRefresh =3D 0x0000=20
        bSynchAddress =3D 0x0000=20

     Endpoint 1
        bLength =3D 0x0007=20
        bDescriptorType =3D 0x0005=20
        bEndpointAddress =3D 0x0002  <OUT>
        bmAttributes =3D 0x0002  <BULK>
        wMaxPacketSize =3D 0x0200=20
        bInterval =3D 0x0000=20
        bRefresh =3D 0x0000=20
        bSynchAddress =3D 0x0000=20

     Endpoint 2
        bLength =3D 0x0007=20
        bDescriptorType =3D 0x0005=20
        bEndpointAddress =3D 0x0003  <OUT>
        bmAttributes =3D 0x0002  <BULK>
        wMaxPacketSize =3D 0x0200=20
        bInterval =3D 0x0000=20
        bRefresh =3D 0x0000=20
        bSynchAddress =3D 0x0000=20

     Endpoint 3
        bLength =3D 0x0007=20
        bDescriptorType =3D 0x0005=20
        bEndpointAddress =3D 0x0084  <IN>
        bmAttributes =3D 0x0003  <INTERRUPT>
        wMaxPacketSize =3D 0x0040=20
        bInterval =3D 0x0001=20
        bRefresh =3D 0x0000=20
        bSynchAddress =3D 0x0000=20

# ifconfig wlan0
wlan0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 15=
00
        ether 74:da:38:d5:f5:4b
        inet 172.30.8.76 netmask 0xffffffc0 broadcast 172.30.8.127=20
        groups: wlan=20
        ssid WAPNAME channel 11 (2462 MHz 11g ht/20) bssid 80:2a:a8:d7:ec:a5
        regdomain FCC country US authmode WPA2/802.11i privacy ON
        deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 7 scanvalid 60
        protmode CTS ht20 ampdulimit 64k ampdudensity 8 shortgi -stbc -ldpc
        wme roaming MANUAL
        media: IEEE 802.11 Wireless Ethernet MCS mode 11ng
        status: associated
        nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

# ping -c 100 172.30.8.65
PING 172.30.8.65 (172.30.8.65): 56 data bytes
64 bytes from 172.30.8.65: icmp_seq=3D0 ttl=3D255 time=3D16.389 ms
...
64 bytes from 172.30.8.65: icmp_seq=3D59 ttl=3D255 time=3D1316.844 ms
64 bytes from 172.30.8.65: icmp_seq=3D61 ttl=3D255 time=3D121.498 ms
64 bytes from 172.30.8.65: icmp_seq=3D62 ttl=3D255 time=3D44.221 ms
64 bytes from 172.30.8.65: icmp_seq=3D63 ttl=3D255 time=3D59.534 ms
64 bytes from 172.30.8.65: icmp_seq=3D64 ttl=3D255 time=3D66.640 ms
64 bytes from 172.30.8.65: icmp_seq=3D65 ttl=3D255 time=3D39.747 ms
64 bytes from 172.30.8.65: icmp_seq=3D66 ttl=3D255 time=3D57.837 ms
64 bytes from 172.30.8.65: icmp_seq=3D67 ttl=3D255 time=3D104.932 ms
...

--- 172.30.8.65 ping statistics ---
100 packets transmitted, 75 packets received, 25.0% packet loss
round-trip min/avg/max/stddev =3D 12.461/58.785/1316.844/147.781 ms

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