linux-kernel - Re: [PATCH v2] locking/rwbase: Prevent indefinite writer starvation

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>] [day] [month] [year] [list]

Message-ID: <Y8kAFr+DfJJar0yD@linutronix.de>
Date:   Thu, 19 Jan 2023 09:32:22 +0100
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Hillf Danton <hdanton@...a.com>
Cc:     Mel Gorman <mgorman@...hsingularity.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>,
        Davidlohr Bueso <dave@...olabs.net>, linux-mm@...ck.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] locking/rwbase: Prevent indefinite writer starvation

On 2023-01-19 09:15:38 [+0800], Hillf Danton wrote:
> But starvation remains same given RT contenders, even if prevent is put
> on your subject line.
>
> What sense could the 4ms deadline make at best if RT contenders extend
> it to a week?
> What will happen if RT contenders are hurt by the starvation deadline?

As far as Mel's efforts go, I am satisfied so far. Maybe you can improve
it further afterwards.

Sebastian