Messages in this thread | | | From | Linus Torvalds <> | Date | Mon, 2 Oct 2017 09:19:10 -0700 | Subject | Re: [kprobes/x86] a19b2e3d78: WARNING:at_kernel/locking/lockdep.c:#trace_hardirqs_off_caller |
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On Mon, Oct 2, 2017 at 8:46 AM, Masami Hiramatsu <mhiramat@kernel.org> wrote: > > I'm considering to remove disabling-irq itself from jprobe. > (Frankly to say, I would like to remove jprobe itself...)
Please please please...
That would be lovely. The jprobe thing is really nasty, and despite the thing having been around forever (looking at history, it does back to 2004) there are very few users and they all look dubious to me.
I seriously doubt anybody uses them, and I suspect our current tracing infrastructure is just *so* much better and more powerful than jprobes was.
So I'd heartily recommend just getting rid of jprobes. Or at least trying, and seeing if anybody actually even notices (and then reverting the removal and looking at what the usage ends up actually being).
Linus
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