linux-kernel - Re: [PATCH] cpuidle: (POWER) Replace pseries_notify_cpuidle_add call with a elegant notifier to fix lockdep problem in start

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:	Mon, 21 May 2012 10:49:38 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Deepthi Dharwar <deepthi@...ux.vnet.ibm.com>
Cc:	Li Zhong <zhong@...ux.vnet.ibm.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Paul Mackerras <paulus@...ba.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	PowerPC email list <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: [PATCH] cpuidle: (POWER) Replace pseries_notify_cpuidle_add
 call with a elegant notifier to fix lockdep problem in start_secondary

On Mon, 2012-05-21 at 10:47 +1000, Benjamin Herrenschmidt wrote:

> Any reason why you don't do cpuidle_disable_device() when the
> CPU is going offline and cpuidle_enable_device() when it's coming
> back ?
> 
> I'm applying the patch for now since it fixes a real problem but
> if the above makes sense, please send a followup fix.

No I'm not ... it's damaged in some odd ways (some whitespace
missing here or there among others). Please resend a fixed one.

Cheers,
Ben.


--
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/