linux-kernel - Re: [PATCH v4 00/23] kprobes: Unify kretprobe trampoline handlers and make kretprobe lockless

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Message-Id: <20200828213729.68bb199c02812e24c2ffe942@kernel.org>
Date:   Fri, 28 Aug 2020 21:37:29 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>, Eddy_Wu@...ndmicro.com,
        x86@...nel.org, davem@...emloft.net, rostedt@...dmis.org,
        naveen.n.rao@...ux.ibm.com, anil.s.keshavamurthy@...el.com,
        linux-arch@...r.kernel.org, cameron@...dycamel.com,
        oleg@...hat.com, will@...nel.org, paulmck@...nel.org
Subject: Re: [PATCH v4 00/23] kprobes: Unify kretprobe trampoline handlers
 and make kretprobe lockless

On Fri, 28 Aug 2020 21:26:38 +0900
Masami Hiramatsu <mhiramat@...nel.org> wrote:

> Hi,
> 
> Here is the 4th version of the series to unify the kretprobe trampoline handler
> and make kretprobe lockless.
> 
> Previous version is here;
> 
>  https://lkml.kernel.org/r/159854631442.736475.5062989489155389472.stgit@devnote2
> 
> In this version, I updated the generic trampoline handler a bit, merge 
> the Peter's lockless patches(*), and add an RFC "remove task scan" patch
> as [20/23].
> 
> (*) https://lkml.kernel.org/r/20200827161237.889877377@infradead.org
> 
> I ran some tests and ftracetest on x86-64. Mostly OK, but hit a BUG in the
> trampoline handler once. I'm trying to reproduce it but not succeeded yet.
> So this may need a careful review and tests.

The series is also available on
git://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git lockless-kretprobe-v4

Thank you,


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