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Old 19th September 2012, 01:36 PM
dmelo87 Offline
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Join Date: Sep 2012
Location: Brazil
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Bluetooth sound device causes kernel failure

Hi,

I'm using f17, on a dell inspiron 1525. I was listening music on a bluetooth headset. After a while it stopped playing. the dmesg showed me this:

Code:
[ 5427.631130] BUG: unable to handle kernel NULL pointer dereference at 0000000000000418
[ 5427.631186] IP: [<ffffffffa0496368>] hci_send_sco+0x28/0xe0 [bluetooth]
[ 5427.631235] PGD aa763067 PUD abd58067 PMD 0 
[ 5427.631268] Oops: 0000 [#1] SMP 
[ 5427.631294] CPU 1 
[ 5427.631307] Modules linked in: rfcomm bnep btusb bluetooth fuse vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) nf_conntrack_ipv4 nf_defrag_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables binfmt_misc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media arc4 iwl3945 r592 iwlegacy snd_hda_codec_idt lpc_ich mac80211 cfg80211 coretemp rfkill snd_hda_codec_hdmi sky2 snd_hda_intel memstick i2c_i801 microcode mfd_core snd_hda_codec dell_wmi dell_laptop serio_raw sparse_keymap dcdbas snd_hwdep snd_pcm snd_page_alloc snd_timer snd soundcore sdhci_pci sdhci mmc_core firewire_ohci firewire_core crc_itu_t wmi i915 video i2c_algo_bit drm_kms_helper drm i2c_core [last unloaded: scsi_wait_scan]
[ 5427.631853] 
[ 5427.631857] Pid: 8494, comm: mplayer Tainted: G         C O 3.5.3-1.fc17.x86_64 #1 Dell Inc. Inspiron 1525                   /      
[ 5427.631927] RIP: 0010:[<ffffffffa0496368>]  [<ffffffffa0496368>] hci_send_sco+0x28/0xe0 [bluetooth]
[ 5427.631977] RSP: 0018:ffff880045633c38  EFLAGS: 00010246
[ 5427.632007] RAX: 0000000000000000 RBX: ffff8800777dd000 RCX: ffff8800939a4600
[ 5427.632007] RDX: 0000000000000000 RSI: ffff8800939a4600 RDI: 0000000000000000
[ 5427.632007] RBP: ffff880045633c68 R08: 00000000000000c0 R09: ffff88008aa00e00
[ 5427.632007] R10: 00000000939a4601 R11: ffff88011b002a00 R12: 0000000000000030
[ 5427.632007] R13: ffff880045633e78 R14: ffff88008aa30d80 R15: 0000000000000030
[ 5427.632007] FS:  00007f6ffe47b840(0000) GS:ffff88011fd00000(0000) knlGS:0000000000000000
[ 5427.632007] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5427.632007] CR2: 0000000000000418 CR3: 000000009c031000 CR4: 00000000000407e0
[ 5427.632007] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 5427.632007] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 5427.632007] Process mplayer (pid: 8494, threadinfo ffff880045632000, task ffff8800899e2e20)
[ 5427.632007] Stack:
[ 5427.632007]  0000000000000030 ffff8800777dd000 0000000000000030 ffff880045633e78
[ 5427.632007]  ffff88008aa30d80 0000000000000030 ffff880045633cc8 ffffffffa04bf631
[ 5427.632007]  ffff8800939a4600 00000030aa62d150 0000000000000000 0000000000000001
[ 5427.632007] Call Trace:
[ 5427.632007]  [<ffffffffa04bf631>] sco_sock_sendmsg+0x141/0x210 [bluetooth]
[ 5427.632007]  [<ffffffff814e7e28>] sock_sendmsg+0xf8/0x130
[ 5427.632007]  [<ffffffff81187a06>] ? do_sync_read+0xe6/0x120
[ 5427.632007]  [<ffffffff810872d3>] ? __wake_up+0x53/0x70
[ 5427.632007]  [<ffffffff814e9a9d>] sys_sendto+0x12d/0x180
[ 5427.632007]  [<ffffffff810d358c>] ? __audit_syscall_entry+0xcc/0x300
[ 5427.632007]  [<ffffffff810d3bac>] ? __audit_syscall_exit+0x3ec/0x450
[ 5427.632007]  [<ffffffff81614ae9>] system_call_fastpath+0x16/0x1b
[ 5427.632007] Code: c3 66 90 55 48 89 e5 48 83 ec 30 48 89 5d d8 4c 89 65 e0 4c 89 6d e8 4c 89 75 f0 4c 89 7d f8 66 66 66 66 90 f6 05 92 42 03 00 04 <4c> 8b a7 18 04 00 00 49 89 fd 48 89 f3 75 7a 48 89 df be 03 00 
[ 5427.632007] RIP  [<ffffffffa0496368>] hci_send_sco+0x28/0xe0 [bluetooth]
[ 5427.632007]  RSP <ffff880045633c38>
[ 5427.632007] CR2: 0000000000000418
[ 5427.650411] ---[ end trace b5d29f22be21320f ]---
[ 5439.725304] composite sync not supported
I tried to kill bluetoothd, but it became defunct.

To use my bluetooth headset I'm using bluez-4.101 with the simple-agent test script.

What should I do?
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