linux-kernel - Re: Strange hang with gcc 8 of kprobe multiple

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Date:   Sun, 9 Dec 2018 23:01:27 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Masami Hiramatsu <mhiramat@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...capital.net>
Subject: Re: Strange hang with gcc 8 of kprobe multiple_kprobes test


* Steven Rostedt <rostedt@...dmis.org> wrote:

> On Tue, 4 Dec 2018 09:15:06 +0100
> Ingo Molnar <mingo@...nel.org> wrote:
> 
> > * Masami Hiramatsu <mhiramat@...nel.org> wrote:
> > 
> > > I remember I have fixed this, and actually WE did it :-D
> > > 
> > > https://lkml.org/lkml/2018/8/23/1203
> > > 
> > > Ah, we hit a same bug...
> > > 
> > > Ingo, could you pick the patch? Should I resend it?  
> > 
> > Indeed: I just picked it up into tip:perf/urgent.
> > 
> > It's my bad: I missed the original submission due to Steve's feedback 
> > which I mistook as a request for another iteration, while he only 
> > commented on the reason for the original breakage and gave his 
> > Reviewed-by ...
> > 
> 
> Sorry for the confusion. The patch and code was quite complex, and I
> was documenting what I thought of the patch (and the bug), so that my
> Reviewed-by had a bit more meaning.

It was totally welcome when I read it the second time - and it's my bad I 
was reading too quickly first time around ;-)

So please keep doing it whenever you find the time! :)

Thanks,

	Ingo