On Wed, Jan 15, 2025 at 10:17:15AM -0500, Steven Rostedt wrote: > [ Adding Masami ] > Is it consistently the same locations being dropped?
Yes, it is very consistent. > There's been cases of a compiler inlining some functions for the code > called in the same file. If that happened, then those will likely be > dropped. That can be tested by adding: > > bool noinline nvme_change_ctrl_state(struct nvme_ctrl *ctrl, > enum nvme_ctrl_state new_state) > > You would think it shouldn't inline it, but there's nothing in the spec > that says it can't do so. This did the trick, now I see the missing state transitions. > > The system is idle, so I hope it's not just a dropped event. Any ideas > > what I am doing wrong? > > I don't think it's a dropped event. It's not busy enough. But the compiler > making a copy of the function (by inlining or what not) can cause something > like this to happen. I didn't expect that the compiler does inlining and not inlining at the same time. Again what learned :) Thanks, Daniel
