linux-kernel - Re: Question about usage of RCU in the input layer

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: <20090321185846.GB7148@linux.vnet.ibm.com>
Date:	Sat, 21 Mar 2009 11:58:46 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	dipankar@...ibm.com, linux-input@...r.kernel.org,
	dmitry.torokhov@...il.com, linux-kernel@...r.kernel.org
Subject: Re: Question about usage of RCU in the input layer

On Fri, Mar 20, 2009 at 09:58:25PM -0700, Arjan van de Ven wrote:
> On Fri, 20 Mar 2009 18:27:46 -0700
> "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> wrote:
> 
> > > I've seen only this (input) one to take a long time
> > 
> > Ouch!!!  A -single- synchronize_rcu() taking a full second???  That
> > indicates breakage.
> 
> I'll do a debug mode tomorrow and visualize it as part of the bootgraph;
> hopefully it'll be an interesting result.
> I'll share the graph when I have it....

Looking forward to seeing it!!!

							Thanx, Paul
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/