On Tue, May 07, 2019 at 12:43:15AM -0700, Song Liu wrote: > diff --git a/kernel/events/core.c b/kernel/events/core.c > index abbd4b3b96c2..0508774d82e4 100644 > --- a/kernel/events/core.c > +++ b/kernel/events/core.c > @@ -8532,9 +8532,10 @@ static int perf_tp_event_match(struct perf_event > *event, > if (event->hw.state & PERF_HES_STOPPED) > return 0; > /* > - * All tracepoints are from kernel-space. > + * All tracepoints except uprobes are from kernel-space. > */ > - if (event->attr.exclude_kernel) > + if (event->attr.exclude_kernel && > + ((event->tp_event->flags & TRACE_EVENT_FL_UPROBE) == 0))
That doesn't make sense; should you not be checking user_mode(regs) instead?
