netdev - Ethernet bug at Upstream-v3.15-rcx on Lager.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <53745E88.7040108@jinso.co.jp>
Date:	Thu, 15 May 2014 15:28:24 +0900
From:	カオ　ミン　ヒェップ 
	<cm-hiep@...so.co.jp>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
CC:	netdev@...r.kernel.org, linux-sh@...r.kernel.org,
	Magnus Damm <magnus.damm@...il.com>,
	Simon Horman <horms@...ge.net.au>
Subject: Ethernet bug at Upstream-v3.15-rcx on Lager.

Hi Sergei

I am Hiep from JINZAI SOLUTION (a Japanese Company).
Now, I am testing a upstream-v3.15-rc2 on Lager for Renesas RSO.
I found a problem about Ethernet Driver so I would like to report to you.
The problem is losing data when sending data by UDP:

     - From Lager board to PC:
     BANDWIDTH from 10M to 70M are good,  but they suddenly  down 51.2 
Mbits/sec at 80M
     and 57.8 Mbits/sec at 90 M and 64.2 Mbits/sec at 100M.

     - From PC to Lager board:
    Some time when the message of "sh-eth r8a7790-ether eth0: Receive 
FIFO Overflow" occurs,
    some of datagrams will be lost as the logs show below:
     「$ iperf -c 172.16.1.36 -u -b 90M
     .....
     [  3] Server Report:
     [  3]  0.0-10.0 sec   108 MBytes  90.4 Mbits/sec   0.000 ms 
36/76923 (0.047%)
     .....
     # iperf -s -u
     [ ID] Interval       Transfer     Bandwidth        Jitter 
Lost/Total Datagrams
     sh-eth r8a7790-ether eth0: Receive FIFO Overflow
     [  3]  0.0-10.0 sec   108 MBytes  90.4 Mbits/sec   0.001 ms 
36/76923 (0.047%)

Please review it when you have time.

Bests Regards,
Cao Minh Hiep.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html