https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264867
--- Comment #4 from felice.t...@gmail.com --- Hi Mark, I tried running my example setting EV_ONESHOT too; in my case the problem was still showing but it could be only a matter of test duration. I also tried to write a kernel module using the callout framework directly: I noticed small extra delays (1-2 ms) every now and then, but never big delays (twice or more of the programmed period) as in userspace, so I agree that there could be something "strange" going on in the kevent layer. I'm waiting to have some hw available to launch the test on different systems. -- You are receiving this mail because: You are the assignee for the bug.