From: Johannes Berg <johannes@sipsolutions.net>
To: "Luis R. Rodriguez" <mcgrof@gmail.com>
Cc: linux-wireless <linux-wireless@vger.kernel.org>
Subject: Re: lockdep complaint on tip + some pending patches
Date: Wed, 22 Jul 2009 12:52:58 +0200 [thread overview]
Message-ID: <1248259978.8124.5.camel@johannes.local> (raw)
In-Reply-To: <43e72e890907211750s69420e47ma98b4c3214dfd1f1@mail.gmail.com>
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On Tue, 2009-07-21 at 17:50 -0700, Luis R. Rodriguez wrote:
> While running on wireless-testing + netns pending patches + wow patches:
>
> wpa_supplicant -D wext -i wlan1 -c mosca.conf
>
> [ 233.096916] phy0: device now idle
> [ 233.114625] ADDRCONF(NETDEV_UP): wlan1: link is not ready
> [ 234.116189] phy0: device no longer idle - scanning
> [ 234.233767]
> [ 234.233772] =======================================================
> [ 234.233797] [ INFO: possible circular locking dependency detected ]
> [ 234.233807] 2.6.31-rc3-wl #16
> [ 234.233814] -------------------------------------------------------
> [ 234.233824] wpa_supplicant/3089 is trying to acquire lock:
> [ 234.233835] (cfg80211_mutex){+.+.+.}, at: [<f83eb185>]
> cfg80211_get_dev_from_ifindex+0x15/0x80 [cfg80211]
> [ 234.233887]
> [ 234.233889] but task is already holding lock:
> [ 234.233901] (rtnl_mutex){+.+.+.}, at: [<c049de2f>] rtnl_lock+0xf/0x20
> [ 234.233932]
> [ 234.233934] which lock already depends on the new lock.
> [ 234.233936]
> [ 234.233957]
> [ 234.233958] the existing dependency chain (in reverse order) is:
> [ 234.233970]
> [ 234.233972] -> #1 (rtnl_mutex){+.+.+.}:
> [ 234.233996] [<c0169b35>] __lock_acquire+0xba5/0x1020
> [ 234.234014] [<c016a06b>] lock_acquire+0xbb/0xe0
> [ 234.234029] [<c05838f4>] mutex_lock_nested+0x54/0x300
> [ 234.234045] [<c049de2f>] rtnl_lock+0xf/0x20
> [ 234.234061] [<f83f734a>] nl80211_send_reg_change_event+0x1aa/0x250 [cfg80211]
I think you're using the wrong genetlink netns patch.
johannes
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prev parent reply other threads:[~2009-07-22 10:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-22 0:50 lockdep complaint on tip + some pending patches Luis R. Rodriguez
2009-07-22 10:52 ` Johannes Berg [this message]
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