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Date: Tue, 4 May 2004 20:22:52 +0300
From: Riku Voipio <riku.voipio@iki.fi>
To: Marcel Holtmann <marcel@holtmann.org>
Cc: BlueZ Mailing List <bluez-users@lists.sourceforge.net>
Subject: Re: [Bluez-users] Oops in hci_usb
Message-ID: <20040504172251.GA27072@kos.to>
References: <20040501173626.GA3866@kos.to> <1083587205.4666.0.camel@pegasus> <20040503193747.GA21331@kos.to> <1083686495.4666.39.camel@pegasus>
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In-Reply-To: <1083686495.4666.39.camel@pegasus>
Sender: Riku Voipio <nchip@kos.to>
List-ID: <bluez-users.lists.sourceforge.net>

Hi Marcel,
> > > do you enabled CONFIG_BT_HCIUSB_SCO in your kernel? If yes, disable it
> > > and try again.
 
> > Getting rid SCO option and updating to 2.6.6-RC3 makes the bluetooth 
> > on x40 work like a charm, no more oops and pairing worked first try. 
> > I can try 2.6.6-RC3 with CONFIG_BT_HCIUSB_SCO if you want to track 
> > the problem deeper. 
 
> please do so, because actually I don't know why it happens.

With -RC3 and SCO enabled, I get the following Oops: (Tanted due to
madwifi)

Unable to handle kernel NULL pointer dereference at virtual address
00000068
 printing eip:
c017a671
*pde = 00000000
Oops: 0002 [#1]
PREEMPT
CPU:    0
EIP:    0060:[<c017a671>]    Tainted: P
EFLAGS: 00010282   (2.6.6-rc3)
EIP is at sysfs_hash_and_remove+0x15/0x7d
eax: 00000000   ebx: e006c3e0   ecx: 00000068   edx: ffff0001
esi: dafc3680   edi: e006c380   ebp: e006c3e0   esp: ccc55e58
ds: 007b   es: 007b   ss: 0068
Process khubd (pid: 7775, threadinfo=ccc54000 task=ccc3c3b0)
Stack: d3c87554 e0033d40 e006c3e0 c7804530 c01d2e4c dafc3680 c0293529 c01d31c4
       c7804530 e006c3cc c7804400 c7804400 d7189400 d7189424 e00641eb c7804530
       d3c87564 d3c87454 e0032d11 c7804400 d3c87554 e0033d40 d3c87c54 e0033d40
Call Trace:
 [<c01d2e4c>] class_device_dev_unlink+0x1a/0x1e
 [<c01d31c4>] class_device_del+0x75/0xae
 [<e00641eb>] hci_unregister_dev+0x10/0x84 [bluetooth]
 [<e0032d11>] hci_usb_disconnect+0x35/0x7c [hci_usb]
 [<e00880e0>] usb_unbind_interface+0x7a/0x7c [usbcore]
 [<c01d265d>] device_release_driver+0x64/0x66
 [<c01d2781>] bus_remove_device+0x55/0x96
 [<c01d184e>] device_del+0x5d/0x9b
 [<c01d189f>] device_unregister+0x13/0x23
 [<e008dcfb>] usb_disable_device+0x71/0xac [usbcore]
 [<e0088bbd>] usb_disconnect+0x9b/0xe8 [usbcore]
 [<e008abd3>] hub_port_connect_change+0x26f/0x274 [usbcore]
 [<e008a5c4>] hub_port_status+0x45/0xb0 [usbcore]
 [<e008aeab>] hub_events+0x2d3/0x346 [usbcore]
 [<e008af4b>] hub_thread+0x2d/0xe4 [usbcore]
 [<c0103b6e>] ret_from_fork+0x6/0x14
 [<c01130ac>] default_wake_function+0x0/0x12
 [<e008af1e>] hub_thread+0x0/0xe4 [usbcore]
 [<c0101ffd>] kernel_thread_helper+0x5/0xb

Code: ff 48 68 78 63 89 34 24 8b 44 24 18 89 44 24 04 e8 66 ff ff


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