On Mon, 2 May 2022 at 11:20, John Ogness <john.ogness@xxxxxxxxxxxxx> wrote: > > On 2022-05-02, Petr Mladek <pmladek@xxxxxxxx> wrote: > >> My proposal would be to fix the tracepoint like so: [...] > >> This fixes the KFENCE and KCSAN tests. > >> > >> Unless I hear objections, I'll prepare a patch explaining why we need to > >> fix the tracepoint. > > > > It makes perfect sense to me. > > This is the easiest place for it. However, it should be clear that in > the context of trace_console_rcuidle(), the message is not yet visible > to any readers. The message _will_ get committed and definitely _will_ > become visible at some point. But it is not (yet) visible at _this_ > point. Maybe that is OK for what it is being used for. > > If trace_console_rcuidle() must be called at the point of visibility for > readers, it becomes more complicated. I think that wasn't the original intent, so fixing it up to actually happen on printk() is probably the sanest thing. I sent the patch trying to explain: https://lore.kernel.org/all/20220503073844.4148944-1-elver@xxxxxxxxxx/ Thank you both for the valuable pointers! -- Marco > John
