[Bluez-devel] recursive locking on pairing: 2.6.18-rc4

sean

author

2006-08-22 20:08 UTC #0 lore raw

I'm trying to pair my nokia 770 with my desktop which is running fc6t2, kernel-2.6.18-rc4. bluez-libs-3.0. Using a zonet usb dongle.

The 770 returns a "no services" message. On the desktop, /var/log/messages:

Aug 22 15:41:57 localhost hcid[24880]: pin_code_request 
(sba=00:02:72:C4:26:F1, dba=00:12:37:46:DB:31)
Aug 22 15:41:57 localhost hcid[24880]: link_key_notify 
(sba=00:02:72:C4:26:F1, dba=00:12:37:46:DB:31)
Aug 22 15:41:59 localhost kernel:
Aug 22 15:41:59 localhost kernel: 
=============================================
Aug 22 15:41:59 localhost kernel: [ INFO: possible recursive 
locking detected ]
Aug 22 15:41:59 localhost kernel: 2.6.17-1.2573.fc6 #1
Aug 22 15:41:59 localhost kernel: 
---------------------------------------------
Aug 22 15:41:59 localhost kernel: sdpd/24884 is trying to 
acquire lock:
Aug 22 15:41:59 localhost kernel: 
(sk_lock-AF_BLUETOOTH){--..}, at: [<ffffffff885622b8>] 
bt_accept_dequeue+0x37/0xfa [bluetooth]
Aug 22 15:41:59 localhost kernel:
Aug 22 15:41:59 localhost kernel: but task is already 
holding lock:
Aug 22 15:41:59 localhost kernel: 
(sk_lock-AF_BLUETOOTH){--..}, at: [<ffffffff88584464>] 
l2cap_sock_accept+0x52/0x162 [l2cap]
Aug 22 15:41:59 localhost kernel:
Aug 22 15:41:59 localhost kernel: other info that might help 
us debug this:
Aug 22 15:41:59 localhost kernel: 1 lock held by sdpd/24884:
Aug 22 15:41:59 localhost kernel:  #0: 
(sk_lock-AF_BLUETOOTH){--..}, at: [<ffffffff88584464>] 
l2cap_sock_accept+0x52/0x162 [l2cap]
Aug 22 15:41:59 localhost kernel:
Aug 22 15:41:59 localhost kernel: stack backtrace:
Aug 22 15:41:59 localhost kernel:
Aug 22 15:41:59 localhost kernel: Call Trace:
Aug 22 15:41:59 localhost kernel:  [<ffffffff8026e8fd>] 
show_trace+0xae/0x319
Aug 22 15:41:59 localhost kernel:  [<ffffffff8026eb7d>] 
dump_stack+0x15/0x17
Aug 22 15:41:59 localhost kernel:  [<ffffffff802a8278>] 
__lock_acquire+0x135/0xa64
Aug 22 15:41:59 localhost kernel:  [<ffffffff802a914a>] 
lock_acquire+0x4b/0x69
Aug 22 15:41:59 localhost kernel:  [<ffffffff802360ca>] 
lock_sock+0xd5/0xe7
Aug 22 15:41:59 localhost kernel:  [<ffffffff885622b8>] 
:bluetooth:bt_accept_dequeue+0x37/0xfa
Aug 22 15:41:59 localhost kernel:  [<ffffffff88584528>] 
:l2cap:l2cap_sock_accept+0x116/0x162
Aug 22 15:41:59 localhost kernel:  [<ffffffff8041f9cd>] 
sys_accept+0x102/0x1af
Aug 22 15:41:59 localhost kernel:  [<ffffffff8026058e>] 
system_call+0x7e/0x83
Aug 22 15:41:59 localhost kernel: DWARF2 unwinder stuck at 
system_call+0x7e/0x83
Aug 22 15:41:59 localhost kernel: Leftover inexact backtrace:
Aug 22 15:41:59 localhost kernel:

sean

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Bluez-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/bluez-devel

Johan Hedberg

2006-08-22 21:10 UTC #1 lore raw

Hi sean,

Quoted 6 lines · sean

I'm trying to pair my nokia 770 with my desktop which is running fc6t2, kernel-2.6.18-rc4. bluez-libs-3.0. Using a zonet usb dongle.
The 770 returns a "no services" message. On the desktop, /var/log/messages:

I can't say anything about the desktop side problems, but the reason you get "no services" is that the 770 will only pair with devices that have either a Dial-up Networking (DUN) or OBEX File Transfer profile service records (or both) in its SDP server. So if you e.g. do a "sdptool add DUN" and "sdptool add FTP" on the desktop side you shouldn't get that error message.

Johan

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Bluez-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/bluez-devel

sean

author

2006-08-22 22:03 UTC #2 lore raw

Quoted 12 lines · Johan Hedberg

Hi sean,
Quoted 6 lines · sean
I'm trying to pair my nokia 770 with my desktop which is running fc6t2, kernel-2.6.18-rc4. bluez-libs-3.0. Using a zonet usb dongle.
The 770 returns a "no services" message. On the desktop, /var/log/messages:

Quoted 9 lines

I can't say anything about the desktop side problems, but the reason you get "no services" is that the 770 will only pair with devices that have either a Dial-up Networking (DUN) or OBEX File Transfer profile service records (or both) in its SDP server. So if you e.g. do a "sdptool add DUN" and "sdptool add FTP" on the desktop side you shouldn't get that error message.
Johan

That was it. Once I sdptool add FTP , pairing succeeded, without any kernel error messages.

sean

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Bluez-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/bluez-devel