linux-kernel - Re: [PATCH] rcu,ftrace: Fix ftrace recursion

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 29 Sep 2020 09:43:18 -0500
From:   Kim Phillips <kim.phillips@....com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Paul McKenney <paulmck@...nel.org>
Cc:     linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH] rcu,ftrace: Fix ftrace recursion

On 9/29/20 6:33 AM, Peter Zijlstra wrote:
> 
> Kim reported that perf-ftrace made his box unhappy. It turns out that
> commit:
> 
>   ff5c4f5cad33 ("rcu/tree: Mark the idle relevant functions noinstr")
> 
> removed one too many notrace. Probably due to there not being a helpful
> comment.
> 
> Reinstate the notrace and add a comment to avoid loosing it again.
> 
> Fixes: ff5c4f5cad33 ("rcu/tree: Mark the idle relevant functions noinstr")
> Reported-by: Kim Phillips <kim.phillips@....com>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
> ---

Tested-by: Kim Phillips <kim.phillips@....com>

Thanks,

Kim