From: Dave Jones <davej@redhat.com>
To: Linux Kernel <linux-kernel@vger.kernel.org>
Cc: samuel@sortiz.org
Subject: irda rmmod lockdep trace.
Date: Thu, 8 Mar 2007 17:54:36 -0500 [thread overview]
Message-ID: <20070308225436.GA25184@redhat.com> (raw)
modprobe irda ; rmmod irda in 2.6.21rc3 gets me the spew below..
Dave
NET: Registered protocol family 23
NET: Unregistered protocol family 23
=============================================
[ INFO: possible recursive locking detected ]
2.6.20-1.2966.fc7 #1
---------------------------------------------
rmmod/16712 is trying to acquire lock:
(&hashbin->hb_spinlock){....}, at: [<ffffffff884bf476>] hashbin_delete+0x29/0x94 [irda]
but task is already holding lock:
(&hashbin->hb_spinlock){....}, at: [<ffffffff884bf476>] hashbin_delete+0x29/0x94 [irda]
other info that might help us debug this:
1 lock held by rmmod/16712:
#0: (&hashbin->hb_spinlock){....}, at: [<ffffffff884bf476>] hashbin_delete+0x29/0x94 [irda]
stack backtrace:
Call Trace:
[<ffffffff802a303b>] __lock_acquire+0x151/0xbc4
[<ffffffff884c1517>] :irda:__irias_delete_attrib+0x0/0x31
[<ffffffff802a3ea4>] lock_acquire+0x4c/0x65
[<ffffffff884bf476>] :irda:hashbin_delete+0x29/0x94
[<ffffffff80264011>] _spin_lock_irqsave+0x2c/0x3c
[<ffffffff884bf476>] :irda:hashbin_delete+0x29/0x94
[<ffffffff884c1918>] :irda:__irias_delete_object+0x0/0x39
[<ffffffff884c193d>] :irda:__irias_delete_object+0x25/0x39
[<ffffffff884bf48d>] :irda:hashbin_delete+0x40/0x94
[<ffffffff884c5e3a>] :irda:iriap_cleanup+0x36/0x38
[<ffffffff884c5fd6>] :irda:irda_cleanup+0x29/0x3a
[<ffffffff802aa1e1>] sys_delete_module+0x199/0x1ca
[<ffffffff8026ce36>] syscall_trace_enter+0x9a/0x9f
[<ffffffff8025c2b5>] tracesys+0xdc/0xe1
--
http://www.codemonkey.org.uk
next reply other threads:[~2007-03-08 22:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-08 22:54 Dave Jones [this message]
2007-03-10 17:43 ` irda rmmod lockdep trace Samuel Ortiz
2007-03-12 0:38 ` Samuel Ortiz
2007-03-12 23:49 ` David Miller
2007-03-13 16:18 ` Samuel Ortiz
2007-03-14 0:50 ` Samuel Ortiz
2007-03-14 2:22 ` David Miller
2007-03-16 20:19 ` Samuel Ortiz
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