On 07/13/2013 01:29 AM, jagdish.motw...@elitecore.com wrote: > Yes John, > When i do the ping request, i can see the 2 ip fragments. Its the > ping reply that is dropped by my igb interface.
Is the replay also 2 packets? If not, the peer machine may have wrong MTU. Thanks, Ben > > Regards, > Jagdish Motwani > >> BTW, this is in reference to using ping with larger sized frames. >> >> Cheers, >> John >> >> >>> -----Original Message----- >>> From: Ronciak, John [mailto:john.ronc...@intel.com] >>> Sent: Friday, July 12, 2013 9:40 AM >>> To: Jagdish Motwani; e1000-devel@lists.sourceforge.net >>> Subject: Re: [E1000-devel] igb: cannot receive packets bigger than mtu >>> >>> Yes the patch is still needed. Setting the MTU smaller than a normal >>> packet will cause the frame to be IP fragmented. So you should be >>> seeing at least 2 packets on the wire being IP fragments. Use >>> wireshark (or something similar) to make sure those packets make it to >>> on to the wire. >>> >>> Cheers, >>> John >>> >>> >>>> -----Original Message----- >>>> From: Jagdish Motwani [mailto:jagdish.motw...@elitecore.com] >>>> Sent: Friday, July 12, 2013 1:57 AM >>>> To: e1000-devel@lists.sourceforge.net >>>> Subject: [E1000-devel] igb: cannot receive packets bigger than mtu >>>> >>>> Hi list, >>>> I am facing a strange issue with igb driver. >>>> >>>> If i set my mtu to 1000, then ping -s 1200 does not work. (the >>>> same thing works with e1000e interface) >>>> >>>> On further debugging, i reached >>>> >>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/? >>>> id=ec54d7d6e40b04c16dfce0e41e506198a20c8645 >>>> >>>> Reverting the patch, i was able to ping. >>>> >>>> The commit message states that it is a fix for skb_over panic. Is >>>> this fix still required? >>>> >>>> Regards, >>>> Jagdish Motwani >>>> >>>> --------------------------------------------------------------------- >>> - >>>> - >>>> ------- >>>> See everything from the browser to the database with AppDynamics Get >>>> end-to-end visibility with application monitoring from AppDynamics >>>> Isolate bottlenecks and diagnose root cause in seconds. >>>> Start your free trial of AppDynamics Pro today! >>>> >>> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.c >>>> l >>>> ktrk >>>> _______________________________________________ >>>> E1000-devel mailing list >>>> E1000-devel@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/e1000-devel >>>> To learn more about Intel® Ethernet, visit >>>> http://communities.intel.com/community/wired >>> >>> ----------------------------------------------------------------------- >>> ------- >>> See everything from the browser to the database with AppDynamics Get >>> end-to-end visibility with application monitoring from AppDynamics >>> Isolate bottlenecks and diagnose root cause in seconds. >>> Start your free trial of AppDynamics Pro today! >>> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.cl >>> ktrk >>> _______________________________________________ >>> E1000-devel mailing list >>> E1000-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/e1000-devel >>> To learn more about Intel® Ethernet, visit >>> http://communities.intel.com/community/wired >> > > > ------------------------------------------------------------------------------ > See everything from the browser to the database with AppDynamics > Get end-to-end visibility with application monitoring from AppDynamics > Isolate bottlenecks and diagnose root cause in seconds. > Start your free trial of AppDynamics Pro today! > http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk > _______________________________________________ > E1000-devel mailing list > E1000-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/e1000-devel > To learn more about Intel® Ethernet, visit > http://communities.intel.com/community/wired > -- Ben Greear <gree...@candelatech.com> Candela Technologies Inc http://www.candelatech.com ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
