bluetooth networking

[Phani Kumar Kancharala]

"pand -nc BAddr" is failed with segmentation fault.
When I run the script provided, after replacing the bluetooth address, the
terminal was hung up.
following are the dmesg:
<1>Unable to handle kernel NULL pointer dereference at virtual address
00000018
<1>pgd = c417c000
<1>[00000018] *pgd=34216031, *pte=00000000, *ppte=00000000
<4>Internal error: Oops: 817 [#1] PREEMPT
<4>Modules linked in: sco bnep snd_soc_neo1973_wm8753 snd_soc_s3c24xx_i2s
snd_soc_s3c24xx snd_soc_wm8753 snd_soc_core snd_pcm snd_timer snd_page_alloc
snd rfcomm ohci_hcd hidp l2cap hci_usb bluetooth
<4>CPU: 0    Not tainted  (2.6.22.5-moko11 #2)
<4>PC is at memcpy+0x8c/0x29c
<4>LR is at 0x146e0600
<4>pc : [<c01474cc>]    lr : [<146e0600>]    psr: 00000013
<4>sp : c41b9e3c  ip : 0000001c  fp : c41b9e94
<4>r10: 00000000  r9 : c41b9ebc  r8 : c4133000
<4>r7 : c41b9e62  r6 : c40905e0  r5 : 00000000  r4 : 00000018
<4>r3 : bf073da4  r2 : ffffffe6  r1 : c41b9e60  r0 : 00000018
<4>Flags: nzcv  IRQs on  FIQs on  Mode SVC_32  Segment user
<4>Control: c000717f  Table: 3417c000  DAC: 00000015
<4>Process pand (pid: 1148, stack limit = 0xc41b8260)
<4>Stack: (0xc41b9e3c to 0xc41ba000)
<4>9e20:
00000000
<4>9e40: c40905e0 c41b9e62 c4133000 00000018 00000018 bf071360 c41b9e7c
146e0600
<4>9e60: 1600174c 5bcae7cf c41b9eec bef0e424 c40905e0 c41b9ebc 400442c8
c00270c8
<4>9e80: c41b8000 00000000 c41b9f0c c41b9e98 bf072234 bf0712cc c44d08a0
0000069b
<4>9ea0: bef0e455 c41b9ec0 c41b8000 00000000 c41b9f8c c41b9ec0 c01d0fc0
00000006
<4>9ec0: 00000006 6e621115 64257065 00000000 00000000 bef00000 c40905e0
0000000a
<4>9ee0: c41b9f00 c00270c8 c41b8000 00000000 c41b9fa4 bef0e424 400442c8
bef0e424
<4>9f00: c41b9f2c c41b9f10 c01cf898 bf072164 c0046c44 bef0e424 c4644a68
c44d0300
<4>9f20: c41b9f4c c41b9f30 c0099e7c c01cf6c0 c44d0300 c4644a68 bef0e424
00000036
<4>9f40: c41b9f7c c41b9f50 c009a1d0 c0099e54 00000000 00000000 00000000
c44d0300
<4>9f60: fffffff7 400442c8 00000036 c00270c8 c41b9fa4 c41b9f80 c009a240
c0099f2c
<4>9f80: c41b9fa4 00000000 c01d1038 00000006 00001115 00014250 00000000
c41b9fa8
<4>9fa0: c0026f20 c009a210 00000006 00001115 00000003 400442c8 bef0e424
00014944
<4>9fc0: 00000006 00001115 00014250 00000036 00014250 00000003 00014934
00015008
<4>9fe0: fffff965 bef0e420 0000abf0 400f0ecc 60000010 00000003 00000000
00000000
<4>Backtrace:
<4>[<bf0712bc>] (bnep_add_connection+0x0/0x304 [bnep]) from [<bf072234>]
(bnep_sock_ioctl+0xe0/0x2e4 [bnep])
<4>[<bf072154>] (bnep_sock_ioctl+0x0/0x2e4 [bnep]) from [<c01cf898>]
(sock_ioctl+0x1e8/0x240)
<4> r6:bef0e424 r5:400442c8 r4:bef0e424
<4>[<c01cf6b0>] (sock_ioctl+0x0/0x240) from [<c0099e7c>]
(do_ioctl+0x38/0xd8)
<4> r6:c44d0300 r5:c4644a68 r4:bef0e424
<4>[<c0099e44>] (do_ioctl+0x0/0xd8) from [<c009a1d0>]
(vfs_ioctl+0x2b4/0x2e4)
<4> r7:00000036 r6:bef0e424 r5:c4644a68 r4:c44d0300
<4>[<c0099f1c>] (vfs_ioctl+0x0/0x2e4) from [<c009a240>]
(sys_ioctl+0x40/0x60)
<4> r8:c00270c8 r7:00000036 r6:400442c8 r5:fffffff7 r4:c44d0300
<4>[<c009a200>] (sys_ioctl+0x0/0x60) from [<c0026f20>]
(ret_fast_syscall+0x0/0x2c)
<4> r6:00014250 r5:00001115 r4:00000006
<4>Code: e4805004 e4806004 e4807004 e4808004 (e480e004)




On Wed, Feb 20, 2008 at 9:47 PM, Bobby Martin <bobbymartin2 at gmail.com>
wrote:

> I had the same problem.  It seemed that sometimes the pand -c command on
> the neo would fail, but subsequent tries would work.
>
> I created a script to handle connecting to my linux machine to do
> bluetooth networking.  I have put it on the wiki at
> http://wiki.openmoko.org/wiki/Bt-net-script
>
> Don't forget to change the XX:XX... to your linux PC's bluetooth id.
>
> Bobby
>
> Hi,
> > I followed the steps given in wiki and I could able to scan the
> > bluethooth devices and connect to the servers using "pand -c MAC".
> > But I couldn't see any bluetooth interface like bnep0 on phone.
> > Can anyone help me to get ride of this. I am using 2.6.22.5 kernel with
> > Qtopia image.
> >
> > -Phani
> >
>
>
> _______________________________________________
> OpenMoko community mailing list
> community at lists.openmoko.org
> http://lists.openmoko.org/mailman/listinfo/community
>
>
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