linux-kernel - Re: [PATCH -v5 00/17] Rewrite x86/ftrace to use text

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Date:   Mon, 25 Nov 2019 15:47:26 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     Peter Zijlstra <peterz@...radead.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org, rostedt@...dmis.org,
        bristot@...hat.com, jbaron@...mai.com,
        torvalds@...ux-foundation.org, tglx@...utronix.de,
        mingo@...nel.org, namit@...are.com, hpa@...or.com, luto@...nel.org,
        ard.biesheuvel@...aro.org, jpoimboe@...hat.com, jeyu@...nel.org,
        alexei.starovoitov@...il.com
Subject: Re: [PATCH -v5 00/17] Rewrite x86/ftrace to use text_poke (and
 more)

On Mon, 25 Nov 2019 12:55:34 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:

> Hi Peter,
> 
> I got a BUG in poke_int3_handler() on 8 threads qemu x86-64
> while testing multi-probe testcase.
> I couldn't reproduce it because maybe it is a timing bug.

I've succeeded to reproduce it.
Attaching a full log and kconfig.

Thank you,

-- 
Masami Hiramatsu <mhiramat@...nel.org>

Download attachment ".config" of type "application/octet-stream" (86979 bytes)

Download attachment "BUG-poke-int3-handler.log" of type "application/octet-stream" (8094 bytes)