On 07/13/2013 01:22 AM, jagdish.motw...@elitecore.com wrote: >> On 07/12/2013 01:56 AM, Jagdish Motwani wrote: >>> 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 >> What version of the igb driver are you working with? We would need to >> know that in order to determine if the fix is still needed or not. >> >> Thanks, >> >> Alex >> > Currently i am using version 3.3.6 but can move forward to 4.1.2 if required. > > Regards, > Jagdish Motwani
So that version shouldn't have any issues with an skb_over_panic, although simply reverting that patch isn't really advisable either as there would be side effects that would likely limit performance. I am sending you a patch. If you can try testing that patch and letting me know if it works for you I would appreciate it. All it does is limit the max_frame_size to being no smaller than 1518 bytes in size in igb_change_mtu. Thanks, Alex ------------------------------------------------------------------------------ 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
