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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link="#0563C1" vlink="#954F72" style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hello everyone:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> I pull the latest patch of etherlab, which is 33b922ec1871ea835f662ac1041317e815a8fdfd, yes, it is updated in 20180622.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> I want to apply the ec_igb.ko, but so pity, I found it abnormal.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> So, I switch the DEVICE_MODULE to “generic”, and it work correctly.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> Let me descript my trouble:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> My OS is “Linux robotx 4.8.15-rt10 #1 SMP PREEMPT RT Tue Feb 6 07:45:14 EST 2018 x86_64 x86_64 x86_64 GNU/Linux” after “uname -a”.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> And my network card is igb i210.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> I found just 4.9 for igb appeared in device/igb, so, I took some modification to make it suitable for 4.8.15, and then, it can work.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> I run it at 1KHz, with DC style, I found data-loss almost every 2.5s.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> Furthermore, I print the cost of “ecrt_master_receive”, I found it always about 500000us when the data-loss appeared.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US> At the same time, I took another test, I switch the DEVICE_MODULE to “generic”, I found it work correctly without any data-loss.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US> I don’t know why It is normal with ec_generic.ko, but, it is abnormal with ec_igb.ko<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> Is there any one would tell me how to solve this trouble?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US> Best Regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> icework<o:p></o:p></span></p></div></body></html>