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From: Johannes Berg <johannes@sipsolutions.net>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: pm list <linux-pm@lists.linux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCH] Hibernation: Fix lockdep report (v2)
Date: Tue, 13 Nov 2007 19:45:33 +0100	[thread overview]
Message-ID: <1194979533.4299.5.camel@johannes.berg> (raw)
In-Reply-To: <200711041459.23082.rjw@sisk.pl>


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On Sun, 2007-11-04 at 14:59 +0100, Rafael J. Wysocki wrote:
> [Len, please add this patch to the suspend branch, thanks.]
> ---
> From: Johannes Berg <johannes@sipsolutions.net>
> 
> Lockdep reports a circular locking dependency in the hibernate code
> because
>  - during system boot hibernate code (from an initcall) locks pm_mutex
>    and then a sysfs buffer mutex via name_to_dev_t
>  - during regular operation hibernate code locks pm_mutex under a
>    sysfs buffer mutex because it's called from sysfs methods.

Ping? Do I need to follow this or will somebody take care to merge it
before .24 closes?

Thanks,
Johannes

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  parent reply	other threads:[~2007-11-13 18:45 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-04 13:59 [PATCH] Hibernation: Fix lockdep report (v2) Rafael J. Wysocki
2007-11-04 18:38 ` Pavel Machek
2007-11-13 18:45 ` Johannes Berg [this message]
2007-11-14 12:52   ` Peter Zijlstra
2007-11-14 13:11   ` Rafael J. Wysocki
  -- strict thread matches above, loose matches on Subject: below --
2007-11-14 21:25 Rafael J. Wysocki
     [not found] <200711142225.58033.rjw@sisk.pl>
     [not found] ` <20071114224200.GB7367@ucw.cz>
2007-11-14 21:54   ` Peter Zijlstra
2007-11-14 22:42 ` Pavel Machek

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