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]

Date:   Sun, 15 Dec 2019 12:18:23 -0800
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     Qian Cai <cai@....pw>
Cc:     Dexuan-Linux Cui <dexuan.linux@...il.com>,
        "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,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Lili Deng <Lili.Deng@...rosoft.com>,
        Dexuan Cui <decui@...rosoft.com>,
        Baihua Lu <Baihua.Lu@...rosoft.com>
Subject: Re: "rcu: React to callback overload by aggressively seeking
 quiescent states" hangs on boot

On Sun, Dec 15, 2019 at 02:53:37PM -0500, Qian Cai wrote:
> > On Dec 15, 2019, at 2:18 PM, Dexuan-Linux Cui <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

Same question for this one:

https://lore.kernel.org/lkml/20191215201646.GK2889@paulmck-ThinkPad-P72/

							Thanx, Paul