linux-kernel - Re: rcu self-detected stall messages on OMAP3, 4 boards

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]

Date:	Thu, 20 Sep 2012 15:03:57 +0000
From:	"Bruce, Becky" <bbruce@...com>
To:	Paul Walmsley <paul@...an.com>
CC:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	"Paul E. McKenney" <paul.mckenney@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"Hilman, Kevin" <khilman@...com>,
	"Shilimkar, Santosh" <santosh.shilimkar@...com>,
	"Hunter, Jon" <jon-hunter@...com>,
	"snijsure@...d-net.com" <snijsure@...d-net.com>
Subject: Re: rcu self-detected stall messages on OMAP3, 4 boards

I'll give it a try on my panda later today.

B

Sent from my iPhone

On Sep 20, 2012, at 2:56 AM, "Paul Walmsley" <paul@...an.com> wrote:

> Hi,
> 
> On Wed, 19 Sep 2012, Paul E. McKenney wrote:
> 
>> On Thu, Sep 13, 2012 at 06:52:10PM +0000, Paul Walmsley wrote:
>> 
>>> On Wed, 12 Sep 2012, Paul E. McKenney wrote:
>> 
>>>> Subodh Nijsure (also CCed) reported something that might be similar on
>>>> ARM, and also reported that setting the following got rid of the stalls:
>>>> 
>>>>    CONFIG_CPU_IDLE=y
>>>>    CONFIG_CPU_IDLE_GOV_LADDER=y
>>>>    CONFIG_CPU_IDLE_GOV_MENU=y
>>>> 
>>>> At which point he was happy, which was good, but which also left the
>>>> underlying problem unsolved.  Do these affect your system?  If so,
>>>> do they cause a different ARM idle loop to be executed?
>>> 
>>> Will give this a try.  What board was Subodh using?
>> 
>> Any news on trying the above settings?
> 
> Sorry, haven't had the chance to try it yet due to the impending merge 
> window opening.  Once things settle down I'll give it a try -- or maybe 
> someone else can test it in the meantime.
> 
> 
> - 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/