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From: Yegor Yefremov <yegorslists@googlemail.com>
To: "Figo.zhang" <figo1802@gmail.com>
Cc: Dick Hollenbeck <dick@softplc.com>,
	netdev@vger.kernel.org, zealcook@gmail.com
Subject: Re: KS8695: possible NAPI issue
Date: Fri, 5 Mar 2010 16:00:11 +0100	[thread overview]
Message-ID: <f69abfc31003050700y57718a6aje3c1ff41d04748ae@mail.gmail.com> (raw)
In-Reply-To: <1267798077.2576.17.camel@myhost>

>> My tests look like following:
>>
>> 1. system start
>> 2. ping one host: O.K.
>> 3. nc -l -p 5000 > /var/test (about 1Mb): O.K.
>> 4. ping the same host: failed
> 1. type "arp" command, see the arp is exit or expire?

debian:~# nc -l -p 5000 > /var/zImage

debian:~# ping -c 1 192.168.1.38

PING 192.168.1.38 (192.168.1.38) 56(84) bytes of data.

>From 192.168.1.66 icmp_seq=1 Destination Host Unreachable



--- 192.168.1.38 ping statistics ---

1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms



debian:~# arp

Address                  HWtype  HWaddress           Flags Mask            Iface
192.168.1.38          (incomplete)                              eth0

192.168.1.36             ether   00:10:18:39:19:aa   C                     eth0


> 2. at this point, see is it still have RX interrpt and receive packet in
> ks8695_rx()? (in some watchpoint add printk).

I've inserted some printks and I can see that interrupts are coming
and the received count will be increased. I can also see my system
sending arp requests. Even this ping request is visible in wireshark
and its reply, but the ping utility sees nothing of it.

  reply	other threads:[~2010-03-05 15:00 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-02 12:04 KS8695: possible NAPI issue Yegor Yefremov
2010-03-02 14:09 ` Dick Hollenbeck
2010-03-03  1:46   ` figo zhang
2010-03-03  5:01     ` Dick Hollenbeck
2010-03-03  8:28       ` Yegor Yefremov
2010-03-04 10:10     ` Yegor Yefremov
2010-03-05  6:54       ` figo zhang
2010-03-05 10:06         ` Yegor Yefremov
2010-03-05 13:52           ` Figo.zhang
2010-03-05 15:03             ` Yegor Yefremov
2010-03-05 14:07           ` Figo.zhang
2010-03-05 15:00             ` Yegor Yefremov [this message]
2010-03-05 16:22               ` Stephen Hemminger
2010-03-06  2:40                 ` Figo.zhang
2010-03-08  9:04               ` figo zhang
2010-03-08 14:10                 ` Yegor Yefremov
2010-03-08 14:11                   ` Yegor Yefremov
2010-03-09  1:50                     ` figo zhang
2010-03-15  9:19                       ` Yegor Yefremov
2010-08-04 14:40                         ` Yegor Yefremov

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