Thomas Gleixner schrieb: [ clip] >that it is calling setpriority() with the arguments > which = 2 (PRIO_USER) > who = 0 (root) > prio = 0x14 (20) >And that's exactly what is causing your problem. OK, thanks a lot!! I jumped back to PREEMPT_RT after several years and wonder: - why isn't on kernel.org a direct link to this project? There is only a reference to an outdated page of RTwiki - why is in the "latest News" of RTwiki (from 2012 / Reporting Bugs)) mentioned: "As always, please search the existing bug list and consider posting the issue to the linux-rt-users <https://rt.wiki.kernel.org/index.php/Mailinglists> mailing list before opening a new defect." ? Do we have to add: "If you do so, you must be prepared to get personal attacks from kernel developers ?? - why is it neccessary to scroll down 4 screens of a 27" monitor to find the released "vanilla" kernels in 3.x? I gave up after the second screen and used then a "testing" kernel -> and that's at the end the root of the chaos! Are you sure that the current representation of the PREEMPT_RT project will convince customers or developers to use it? Next station in my test work is Minix 3.0: true mikrokernel system, drivers in user space ... --Armin -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html