linux-kernel - RE: "rcu: React to callback overload by aggressively seeking quiescent states" hangs on boot

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: <HK0P153MB0148B34EECB0A1A982B25732BF560@HK0P153MB0148.APCP153.PROD.OUTLOOK.COM>
Date:   Sun, 15 Dec 2019 20:19:55 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     Qian Cai <cai@....pw>, Dexuan-Linux Cui <dexuan.linux@...il.com>
CC:     "paulmck@...nel.org" <paulmck@...nel.org>,
        "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        Tejun Heo <tj@...nel.org>,
        Josh Triplett <josh@...htriplett.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        "rcu@...r.kernel.org" <rcu@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Lili Deng <Lili.Deng@...rosoft.com>,
        Baihua Lu <Baihua.Lu@...rosoft.com>
Subject: RE: "rcu: React to callback overload by aggressively seeking
 quiescent states" hangs on boot

> From: Qian Cai <cai@....pw>
> Sent: Sunday, December 15, 2019 11:54 AM
> Subject: Re: "rcu: React to callback overload by aggressively seeking
> quiescent states" hangs on boot
>
>
> On Dec 15, 2019, at 2:18 PM, Dexuan-Linux Cui <mailto:dexuan.linux@...il.com> wrote:
> We're seeing the same hang issue with a recent Linux next-20191213
> kernel.  If we revert the same commit 82150cb53dcb ("rcu: React to
> callback overload by aggressively seeking quiescent states”), the
> issue will go away.
>
> Does this patch work for you?
> https://lore.kernel.org/rcu/20191215065242.7155-1-cai@lca.pw/#r

Yes,  this can work for me. Thanks!