Wolfgang,The version is 2010.03-rc1 (Netlogic ported it), I heard there is also some change on mainline uboot, but I am not sure the exactly version, however I only want to know how this issue happens? and what's the solution then?Thanks again.Dennis-------- Forwarding messages -------- From: "Wolfgang Denk" wd@denx.de Date: 2011-06-10 14:20:51 To: jxnuxdy jxnuxdy@163.com Cc: u-boot@lists.denx.de Subject: Re: encounter 'bad length' problem in u-boot Dear jxnuxdy, In message 71744a2e.17da7.130777b8fa1.Coremail.jxnuxdy@163.com you wrote: > > I enconter the problem 'bad length' during the ping, can anybody > give a point as how this issue happen, how to kill it even this maybe > not an critical issue ... Which board is this, and which exact version of U-Boot? > u-boot $ ping 10.4.58.48> > Using nae-6 device This does not look like any code supported in mainline U-Boot? Best regards,Wolfgang Denk-- DENX Software Engineering GmbH, MD: Wo lfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de On a clear disk you can seek forever.