linux-kernel - Re: ftrace histogram sorting broken on BE architecures

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Message-ID: <20191211181421.GA19097@t470p.stackframe.org>
Date:   Wed, 11 Dec 2019 19:14:21 +0100
From:   Sven Schnelle <svens@...ckframe.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     linux-trace-devel@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>,
        Tom Zanussi <zanussi@...nel.org>
Subject: Re: ftrace histogram sorting broken on BE architecures

Hi Steven,

On Wed, Dec 11, 2019 at 11:09:59AM -0500, Steven Rostedt wrote:
> On Wed, 11 Dec 2019 10:35:57 -0500
> Steven Rostedt <rostedt@...dmis.org> wrote:
> 
> > > Any thoughts on how to fix this? I'm not sure whether i fully understand the
> > > ftrace maps... ;-)  
> > 
> > Your analysis makes sense. I'll take a deeper look at it.
> 
> Does this patch fix it for you?

Yes, it does. Thanks for looking into this.

> Correct me if I'm wrong, from what I can tell, all sums and keys are
> u64 unless they are a string. Thus, I believe this patch should not
> have any issues.

I'll retest if Tom comes up with another patch.

Thanks,
Sven