From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: linux-usb@vger.kernel.org, Felipe Balbi <balbi@ti.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] usb/gadget: initialize gadget functions helper befor functions & gadgets
Date: Tue, 5 Mar 2013 20:18:40 +0100 [thread overview]
Message-ID: <20130305191840.GB18329@kibibi> (raw)
In-Reply-To: <20130305103513.GA31454@localhost>
* Fengguang Wu | 2013-03-05 18:35:13 [+0800]:
>Note that I still get this warning, however looks like an unrelated
>issue:
>
>[ 602.536679] [ INFO: possible circular locking dependency detected ]
>[ 602.536672]
>[ 602.536679] ======================================================
>[ 602.536679] [ INFO: possible circular locking dependency detected ]
>[ 602.536693] 3.8.0-bisect-next-20130301-dirty #212 Not tainted
>[ 602.536694] -------------------------------------------------------
>[ 602.536698] kworker/0:1/27 is trying to acquire lock:
>[ 602.536750] (&fb_info->lock){+.+.+.}, at: [<ffffffff814c0176>] lock_fb_info+0x26/0x60
>[ 602.536751]
>[ 602.536751] but task is already holding lock:
>[ 602.536773] (console_lock){+.+.+.}, at: [<ffffffff815a6a13>] console_callback+0x13/0x150
>[ 602.536774]
>[ 602.536774] which lock already depends on the new lock.
This does not look good but it does not like USB. It looks more like the
tty/fb area.
>Thanks,
>Fengguang
Sebastian
next prev parent reply other threads:[~2013-03-05 19:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-06 2:04 [usb gadget] WARNING: at kernel/mutex.c:198 __mutex_lock_common() Fengguang Wu
2013-02-27 10:49 ` Felipe Balbi
2013-03-02 13:37 ` Fengguang Wu
2013-03-02 13:41 ` Sebastian Andrzej Siewior
2013-03-02 13:45 ` Fengguang Wu
2013-03-04 21:28 ` [PATCH] usb/gadget: initialize gadget functions helper befor functions & gadgets Sebastian Andrzej Siewior
2013-03-04 22:40 ` Michal Nazarewicz
2013-03-05 9:57 ` Fengguang Wu
2013-03-05 10:35 ` Fengguang Wu
2013-03-05 19:18 ` Sebastian Andrzej Siewior [this message]
2013-03-05 10:49 ` Felipe Balbi
2013-03-05 19:16 ` Sebastian Andrzej Siewior
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