Interruptions to certain types of applications can be undesired. To that end, a mode where full task isolation is guaranteed by the kernel has been developed: https://lwn.net/Articles/816298/ However, this mode is not upstream, and there are a number of objections to the current patchset. It would be interesting to get full task isolation mode integrated upstream so RH's customers can benefit from it as well.
*** This bug has been marked as a duplicate of bug 1259863 ***