linux-kernel - Re: Broken kretprobe stack traces

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Message-Id: <4d68e8d9-38b0-4f32-90b6-1639558fce51@www.fastmail.com>
Date:   Wed, 03 Mar 2021 12:13:08 -0800
From:   "Daniel Xu" <dxu@...uu.xyz>
To:     "Steven Rostedt" <rostedt@...dmis.org>
Cc:     "Masami Hiramatsu" <mhiramat@...nel.org>,
        linux-kernel@...r.kernel.org,
        "bpf@...r.kernel.org" <bpf@...r.kernel.org>, kuba@...nel.org
Subject: Re: Broken kretprobe stack traces

On Wed, Mar 3, 2021, at 11:58 AM, Daniel Xu wrote:
> On Wed, Mar 03, 2021 at 09:26:04AM -0500, Steven Rostedt wrote:
> > On Wed, 3 Mar 2021 13:48:28 +0900
> > Masami Hiramatsu <mhiramat@...nel.org> wrote:
> > 
> > > 
> > > > 
> > > > I think (can't prove) this used to work:  
> > 
> > Would be good to find out if it did.
> 
> I'm installing some older kernels now to check. Will report back.

Yep, works in 4.11. So there was a regression somewhere.

Thanks,
Daniel