Hi Mandeep, Recently i encountered similar issue with UIO framework in hotplug scenario. I reviewed the earlier patch from 2010 and your 4 patch series. 4 patch series seems to work. I checked the latest kernel source and i dont think your patches have been merged. Hopefully i am not looking at the wrong place. If they are not merged is there a plan to merge them ? I do think these patches are required. I also found a bug in your patch set which is discussed here https://lkml.org/lkml/2017/6/14/30. I was able to workaround/fix it. I can upload a patch if needed. Please advice if you plan to get the patchset merged. Thanks Divakar _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies