On 2018-06-27 16:12, Pintu Kumar wrote: >> With nosmap, that particular issue should no longer occur (at least as >> long as we can ask the kernel for this relaxation), so I suspect the >> other effect you see now is something else. > > Just for the information, that issue occurred even on Beagle bone, and > there is no smap on arm. > However, it works on virtual box. how ?
Does it work when you go back to Xenomai 3.0.6? Then it would be a regression of the copy-to/from-userspace improvements done after that release, you could start bisecting which commit introduced it. But I'm not sure right now if there isn't something similar to smap (then just without a knob to turn it off) in the ARM architecture as well... Jan -- Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux _______________________________________________ Xenomai mailing list Xenomai@xenomai.org https://xenomai.org/mailman/listinfo/xenomai
