linux-kernel - Re: [PATCH 3/3] x86/ftrace: Use text

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Message-ID: <20191022035522.mz5l7edak3beor5u@ast-mbp.dhcp.thefacebook.com>
Date:   Mon, 21 Oct 2019 20:55:24 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>, X86 ML <x86@...nel.org>,
        Nadav Amit <nadav.amit@...il.com>,
        Andy Lutomirski <luto@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Song Liu <songliubraving@...com>,
        Masami Hiramatsu <mhiramat@...nel.org>
Subject: Re: [PATCH 3/3] x86/ftrace: Use text_poke()

On Mon, Oct 21, 2019 at 11:16:30PM -0400, Steven Rostedt wrote:
> On Mon, 21 Oct 2019 20:10:09 -0700
> Alexei Starovoitov <alexei.starovoitov@...il.com> wrote:
> 
> > On Mon, Oct 21, 2019 at 5:43 PM Steven Rostedt <rostedt@...dmis.org> wrote:
> > >
> > > On Mon, 21 Oct 2019 17:36:54 -0700
> > > Alexei Starovoitov <alexei.starovoitov@...il.com> wrote:
> > >
> > >  
> > > > What is the status of this set ?
> > > > Steven, did you apply it ?  
> > >
> > > There's still bugs to figure out.  
> > 
> > what bugs you're seeing?
> > The IPI frequency that was mentioned in this thread or something else?
> > I'm hacking ftrace+bpf stuff in the same spot and would like to
> > base my work on the latest and greatest.
> 
> There's real bugs (crashes), talked about in later versions of the
> patch set:
> 
>  https://lore.kernel.org/r/20191009224135.2dcf7767@oasis.local.home
> 
> And there was another crash on Peter's latest I just reported:
> 
>  https://lore.kernel.org/r/20191021222110.49044eb5@oasis.local.home

ahh. I missed the whole thread. Thanks for pointers.