linux-kernel - Re: [PATCH v5 0/2] printk: Console owner and waiter logic cleanup

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]

Message-ID: <20180110140547.GZ3668920@devbig577.frc2.facebook.com>
Date:   Wed, 10 Jan 2018 06:05:47 -0800
From:   Tejun Heo <tj@...nel.org>
To:     Petr Mladek <pmladek@...e.com>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        akpm@...ux-foundation.org, linux-mm@...ck.org,
        Cong Wang <xiyou.wangcong@...il.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Mel Gorman <mgorman@...e.de>, Michal Hocko <mhocko@...nel.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Peter Zijlstra <peterz@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Jan Kara <jack@...e.cz>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
        rostedt@...e.goodmis.org, Byungchul Park <byungchul.park@....com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        Pavel Machek <pavel@....cz>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 0/2] printk: Console owner and waiter logic cleanup

On Wed, Jan 10, 2018 at 02:24:16PM +0100, Petr Mladek wrote:
> This is the last version of Steven's console owner/waiter logic.
> Plus my proposal to hide it into 3 helper functions. It is supposed
> to keep the code maintenable.
> 
> The handshake really works. It happens about 10-times even during
> boot of a simple system in qemu with a fast console here. It is
> definitely able to avoid some softlockups. Let's see if it is
> enough in practice.
> 
> From my point of view, it is ready to go into linux-next so that
> it can get some more test coverage.
> 
> Steven's patch is the v4, see
> https://lkml.kernel.org/r/20171108102723.602216b1@gandalf.local.home

At least for now,

 Nacked-by: Tejun Heo <tj@...nel.org>

Maybe this can be a part of solution but it's really worrying how the
whole discussion around this subject is proceeding.  You guys are
trying to railroad actual problems.  Please address actual technical
problems.

Thanks.

-- 
tejun