IglooCommunity

Snowball: kernel crash while trying to pair Bluetooth headset

Bug #987191 reported by Abhishek Paliwal on 2012-04-23

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	IglooCommunity	New	Medium	Mridul Jain

Bug Description

Description:
==========
Kernel crash observed while trying to pair Bluetooth headset to snowball V11 hardware on android build:
https://android-build.linaro.org/builds/~linaro-android/snowball-ics-gcc46-igloo-stable-blob-12.04-release/#build=6

IMPACT:
=======
Unbale to pair and connect to BT headset for this instance.

Reproducible:
===========
Tested only once.

Steps:
=======
Precondition: Bluetooth was ON from previous boot.
1. Bootup snowball device (BT remains ON)
2. Go to settings->Bluetooth->Available devices show Bluetooth headset->Connect to BT headset.
Issue: Kernel crash observed while trying to connect to BT headset

Logs:
======
See attached logs

Snippet:
I/Bluetooth HSHFP( 1815): Trying to connect to rfcomm socket again after 1 sec
[ 161.852050] Unable to handle kernel paging request at virtual address 00100104
[ 161.859283] pgd = c0004000
[ 161.862030] [00100104] *pgd=00000000
[ 161.865600] Internal error: Oops: 817 [#1] PREEMPT SMP
[ 161.870758] dbx500_dump notified of crash
[ 161.876800] Modules linked in: cw1200_core(C) mac80211
[ 161.881958] CPU: 0 Tainted: G WC (3.3.0+ #1)
[ 161.887359] PC is at l2cap_chan_destroy+0x3c/0x88
[ 161.892089] LR is at _raw_write_lock+0x18/0x1c
[ 161.896514] pc : [<c057f3b8>] lr : [<c05eea00>] psr: 60000013
[ 161.896514] sp : eb8e9d88 ip : 00100100 fp : eb8e9d9c
[ 161.907989] r10: eaef5a00 r9 : ead8517c r8 : ead84f74
[ 161.913208] r7 : ead84f74 r6 : eafabc00 r5 : ead850c0 r4 : eafab000
[ 161.919738] r3 : 00200200 r2 : 00100100 r1 : 00200200 r0 : c0f26620
[ 161.926269] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 161.933563] Control: 10c5787d Table: 2abf004a DAC: 00000015
[ 161.939300]
[ 161.939300] PC: 0xc057f338:
[ 161.943572] f338 e5d032cc e3530000 1a000001 e1a00004 e89da878 e1a02005 e59f1020 e1a03004
[ 161.951782] f358 e2800fae ebf31e96 eafffff7 c092b03c c0f26620 c0967bd4 c057f70c c097c858
[ 161.959991] f378 c07ed9c0 e1a0c00d e92dd818 e24cb004 e92d4000 e8bd4000 e1a04000 e59f0064
[ 161.968200] f398 eb01bd92 e5941214 e3a02c01 e594c210 e3a03c02 e3402010 e3403020 e59f0044
[ 161.976409] f3b8 e58c1004 e581c000 e5843214 e5842210 eb01bb85 e284300c f57ff05f e1932f9f
[ 161.984619] f3d8 e2422001 e1831f92 e3310000 1afffffa f57ff05f e3520000 189da818 e1a00004
[ 161.992828] f3f8 ebedced1 e89da818 c0f26620 e1a0c00d e92ddff0 e24cb004 e24dd014 e92d4000
[ 162.001007] f418 e8bd4000 e59f62d0 e1a04000 e1a07001 e8900120 e5d632e4 e3530000 1a00009a
[ 162.009216]
[ 162.009216] LR: 0xc05ee980:
[ 162.013488] e980 e24bd018 e89da870 e5943004 e2433001 e5843004 e5943000 e3130002 1a00000d
[ 162.021697] e9a0 e5903004 e3530000 e5903000 05806004 e3530000 1a000003 eaffffe6 e5903000
[ 162.029907] e9c0 e3530000 0affffe3 e5903004 e3530000 1afffff9 eaffffdf e50b0020 ebfffa6e
[ 162.038116] e9e0 e51b0020 eaffffed e1a0c00d e92dd800 e24cb004 e92d4000 e8bd4000 ebffffca
[ 162.046325] ea00 e89da800 e1a0c00d e92dd870 e24cb004 e24dd00c e92d4000 e8bd4000 e1a0300d
[ 162.054534] ea20 e3c34d7f e3a05102 e3c4403f e3a06001 e5943004 e2833001 e5843004 e10f2000
[ 162.062744] ea40 f10c0080 e1903f9f e3330000 01803f95 e3530000 1a000004 f57ff05f e5803004
[ 162.070922] ea60 e1a00002 e24bd018 e89da870 e121f002 e5943004 e2433001 e5843004 e5943000
[ 162.079132]
[ 162.079132] SP: 0xeb8e9d08:
[ 162.083404] 9d08 eb8e9d2c eb8e9d18 c0052b3c c0062c54 00000000 eaef5a38 c057f3b8 60000013
[ 162.091613] 9d28 ffffffff eb8e9d74 eb8e9d9c eb8e9d40 c0014c18 c000838c c0f26620 00200200
[ 162.099822] 9d48 00100100 00200200 eafab000 ead850c0 eafabc00 ead84f74 ead84f74 ead8517c
[ 162.108032] 9d68 eaef5a00 eb8e9d9c 00100100 eb8e9d88 c05eea00 c057f3b8 60000013 ffffffff
[ 162.116241] 9d88 00000000 eaef5a00 eb8e9db4 eb8e9da0 c0585e68 c057f388 c0585f74 0000006e
[ 162.124450] 9da8 eb8e9dc4 eb8e9db8 c0585f8c c0585e2c eb8e9dfc eb8e9dc8 c057b2cc c0585f80
[ 162.132629] 9dc8 ea982800 00000000 eb8e9e04 00000008 c097c858 eafabc00 00000008 00000001
[ 162.140838] 9de8 eade600b eade600e eb8e9e34 eb8e9e00 c0583d74 c057b244 c057712c c0572e40
[ 162.149047]
[ 162.149047] FP: 0xeb8e9d1c:
[ 162.153320] 9d1c eaef5a38 c057f3b8 60000013 ffffffff eb8e9d74 eb8e9d9c eb8e9d40 c0014c18
[ 162.161529] 9d3c c000838c c0f26620 00200200 00100100 00200200 eafab000 ead850c0 eafabc00
[ 162.169738] 9d5c ead84f74 ead84f74 ead8517c eaef5a00 eb8e9d9c 00100100 eb8e9d88 c05eea00
[ 162.177947] 9d7c c057f3b8 60000013 ffffffff 00000000 eaef5a00 eb8e9db4 eb8e9da0 c0585e68
[ 162.186126] 9d9c c057f388 c0585f74 0000006e eb8e9dc4 eb8e9db8 c0585f8c c0585e2c eb8e9dfc
[ 162.194335] 9dbc eb8e9dc8 c057b2cc c0585f80 ea982800 00000000 eb8e9e04 00000008 c097c858
[ 162.202545] 9ddc eafabc00 00000008 00000001 eade600b eade600e eb8e9e34 eb8e9e00 c0583d74
[ 162.210754] 9dfc c057b244 c057712c c0572e40 00000000 eb8e9e34 ea9aa800 ea982b00 eafabc00
[ 162.218963]
[ 162.218963] R0: 0xc0f265a0:
[ 162.223236] 65a0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.231445] 65c0 00000000 c0649c74 c0649230 c0649f30 c064a920 c064afac 00000000 c064b3b4
[ 162.239654] 65e0 00000000 00000000 00000000 00000000 00000000 c0967a3c 00000000 00000000
[ 162.247863] 6600 00000000 00000000 eacce220 00000000 00000000 00000000 ebb94d00 eb00e800
[ 162.256042] 6620 80000000 00000000 00000000 eb0123c0 ea2a5c20 00000000 00000000 00000000
[ 162.264251] 6640 eb0125e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.272460] 6660 00000000 00000000 eb898a00 eb021dd8 00000000 eaef5820 00000000 00000000
[ 162.280670] 6680 eb021d50 ebf16d80 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.288879]
[ 162.288879] R4: 0xeafaaf80:
[ 162.293151] af80 00000000 00000726 000007ed 00000000 00000000 00000000 00000000 00000000
[ 162.301330] afa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.309539] afc0 efff2fe9 a77ffffc fff9ffff 97ffff55 fabfffbf ffddfdfd 7ddbfbfd bbfefffe
[ 162.317749] afe0 eff7ffed fffefbbe 8bffffdf fff9dbff bf7ddfff f7abffff ffffdfbe 9f7fbfff
[ 162.325958] b000 eaef5a00 00000000 00000009 00000000 00000003 03f50040 ffff02a0 00000300
[ 162.334167] b020 00021001 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.342376] b040 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.350585] b060 00000000 01000000 003f003f 00000003 00000000 00000000 00000000 00000002
[ 162.358795]
[ 162.358795] R5: 0xead85040:
[ 162.363067] 5040 ea0ca000 eabe4040 000000c0 ead850c0 0000000a 00000008 00000000 00000001
[ 162.371276] 5060 00000002 ffffffff 00000004 00000002 00000003 00000007 00000008 00000005
[ 162.379455] 5080 0000000a 0000000b 0000000c 0000000d 0000000e ffffffff 0000000e 0000000f
[ 162.387664] 50a0 00000010 00000011 00000012 00000000 00000000 00000000 00000000 00000000
[ 162.395874] 50c0 eafabc00 eacfa640 eafabc0c ea9aa834 000003fd 00000000 00000000 00000300
[ 162.404083] 50e0 ead850e0 ead850e0 c05821b0 00000000 00000000 00000000 eb8a2000 00000000
[ 162.412292] 5100 00000000 ffffffff ffffffff 00000000 00000000 00000000 00000000 00000000
[ 162.420501] 5120 00000000 00000000 00000000 00000000 00001300 00000000 00000000 00000000
[ 162.428710]
[ 162.428710] R6: 0xeafabb80:
[ 162.432983] bb80 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.441162] bba0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.449371] bbc0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.457580] bbe0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.465789] bc00 ea9aace0 ea9aace0 00000000 e4a1af8e 0000000b 00090000 01010100 00000000
[ 162.473999] bc20 00000000 00000000 00000000 0005cc18 00000001 020104ff 01030000 000007d0
[ 162.482208] bc40 00000000 00ff0000 00000000 eafabc4c eafabc4c 00000000 00000000 00000000
[ 162.490417] bc60 eacfa640 eacfa640 ea9b5c07 ea9b5c54 ea9aac20 c056ab64 00000000 00200200
[ 162.498626]
[ 162.498626] R7: 0xead84ef4:
[ 162.502899] 4ef4 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3d187e7e
[ 162.511077] 4f14 3d188e7e 3d189e7e 3d18ae7e 3d18be7e 3d18ce7e 00000000 00000000 00000000
[ 162.519287] 4f34 3d190e7e 3d191e7e 3d192e7e 3d193e7e 00000000 00000000 00000000 00000000
[ 162.527496] 4f54 3d198e7e 3d199e7e 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.535705] 4f74 00000000 00000000 3d1bfe7e 00000000 00000000 3d1c2e7e 3d1c3e7e 00000000
[ 162.543914] 4f94 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.552124] 4fb4 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3d451e7e
[ 162.560333] 4fd4 00000000 3d453e7e 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.568511]
[ 162.568542] R8: 0xead84ef4:
[ 162.572784] 4ef4 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3d187e7e
[ 162.580993] 4f14 3d188e7e 3d189e7e 3d18ae7e 3d18be7e 3d18ce7e 00000000 00000000 00000000
[ 162.589202] 4f34 3d190e7e 3d191e7e 3d192e7e 3d193e7e 00000000 00000000 00000000 00000000
[ 162.597412] 4f54 3d198e7e 3d199e7e 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.605621] 4f74 00000000 00000000 3d1bfe7e 00000000 00000000 3d1c2e7e 3d1c3e7e 00000000
[ 162.613830] 4f94 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.622009] 4fb4 00000000 00000000 00000000 00000000 00000000 00000000 00000000 3d451e7e
[ 162.630218] 4fd4 00000000 3d453e7e 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.638427]
[ 162.638427] R9: 0xead850fc:
[ 162.642700] 50fc 00000000 00000000 ffffffff ffffffff 00000000 00000000 00000000 00000000
[ 162.650909] 511c 00000000 00000000 00000000 00000000 00000000 00001300 00000000 00000000
[ 162.659118] 513c 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.667297] 515c 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.675506] 517c ead8517c ead8517c 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.683715] 519c 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.691925] 51bc 00000000 ea155a00 eaa963c4 00000000 00000000 000007db 00000000 00000000
[ 162.700134] 51dc ead851dc ead851dc 00007201 00007201 00000000 00000000 ead851f4 ead851f4
[ 162.708343]
[ 162.708343] R10: 0xeaef5980:
[ 162.712677] 5980 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c048733c
[ 162.720886] 59a0 c048742c c0487390 c04872c8 00000000 c058e710 00000000 00000000 af8e0000
[ 162.729095] 59c0 000be4a1 eaef59c4 eaef59c4 00000000 00000000 00000000 eacdbec0 00000201
[ 162.737304] 59e0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 162.745513] 5a00 00000000 00000000 00000000 0009001f 00000000 00000000 00000000 c0967bf8
[ 162.753723] 5a20 00000000 00000000 ffffffff 00000000 00000000 00000000 00000000 00000000
[ 162.761932] 5a40 00000000 eaef5a44 eaef5a44 eaef5a4c eaef5a4c 00000000 00000000 00000000
[ 162.770141] 5a60 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00028000
[ 162.778350] Process kworker/u:1 (pid: 11, stack limit = 0xeb8e82f0)
[ 162.784606] Stack: (0xeb8e9d88 to 0xeb8ea000)
[ 162.788940] 9d80: 00000000 eaef5a00 eb8e9db4 eb8e9da0 c0585e68 c057f388
[ 162.797119] 9da0: c0585f74 0000006e eb8e9dc4 eb8e9db8 c0585f8c c0585e2c eb8e9dfc eb8e9dc8
[ 162.805297] 9dc0: c057b2cc c0585f80 ea982800 00000000 eb8e9e04 00000008 c097c858 eafabc00
[ 162.813476] 9de0: 00000008 00000001 eade600b eade600e eb8e9e34 eb8e9e00 c0583d74 c057b244
[ 162.821655] 9e00: c057712c c0572e40 00000000 eb8e9e34 ea9aa800 ea982b00 eafabc00 00000008
[ 162.829833] 9e20: 00000001 eade600e eb8e9edc eb8e9e38 c056f23c c0583bdc 00000008 eb8e9e48
[ 162.838012] 9e40: c00660a0 eacce200 eacce200 c048749c 00000000 eacce200 eb8e9e7c eb8e9e68
[ 162.846160] 9e60: c048749c c009914c c048742c ea9aa808 eb8e9ea4 eb8e9e80 c04887d0 c0487438
[ 162.854339] 9e80: 00000000 ea9aa800 ea982b00 eacce220 eacce200 c0578e14 eb8e9edc eb8e9ea8
[ 162.862518] 9ea0: c0578e14 c05ee0b0 ea982140 eafabc00 eb8e9edc ea9aac1c ea982b00 c09c1f00
[ 162.870697] 9ec0: ea9aac4c c097aea8 c08f0540 ea9aa800 eb8e9f2c eb8e9ee0 c0566e64 c056c5bc
[ 162.878875] 9ee0: c08ee39c eb88ff40 0000009a c09c1f00 ea9aa80c ea9aac1c c08f0540 c0913c78
[ 162.887054] 9f00: eb8e9f1c eb88ff40 eb8e8000 c09c1f00 ea9b5c00 ea9aac1c c08f0540 c0913c78
[ 162.895233] 9f20: eb8e9f6c eb8e9f30 c004c8f8 c0566be4 c09c1f08 ea9b5c05 c0566bd8 00000000
[ 162.903381] 9f40: eb8e9f5c eb88ff40 c09c1f00 c09c1f08 eb88ff50 eb8e8000 c08f0540 c0913c78
[ 162.911560] 9f60: eb8e9fb4 eb8e9f70 c004d014 c004c7cc 00000013 00000000 00000000 c08f0540
[ 162.919738] 9f80: c08f0540 c08f0540 00000013 eb87beb8 eb88ff40 c004ce8c 00000013 00000000
[ 162.927917] 9fa0: 00000000 00000000 eb8e9ff4 eb8e9fb8 c00522ec c004ce98 00000000 00000000
[ 162.936096] 9fc0: eb88ff40 00000000 00000000 00000000 eb8e9fd0 eb8e9fd0 00000000 eb87beb8
[ 162.944274] 9fe0: c0052254 c0016318 00000000 eb8e9ff8 c0016318 c0052260 f3dfffff bf7fdfff
[ 162.952453] [<c057f3b8>] (l2cap_chan_destroy+0x3c/0x88) from [<c0585e68>] (l2cap_sock_kill+0x48/0xa8)
[ 162.961700] [<c0585e68>] (l2cap_sock_kill+0x48/0xa8) from [<c0585f8c>] (l2cap_sock_close_cb+0x18/0x1c)
[ 162.971008] [<c0585f8c>] (l2cap_sock_close_cb+0x18/0x1c) from [<c057b2cc>] (l2cap_conn_del+0x94/0x128)
[ 162.980316] [<c057b2cc>] (l2cap_conn_del+0x94/0x128) from [<c0583d74>] (l2cap_connect_cfm+0x1a4/0x3e4)
[ 162.989624] [<c0583d74>] (l2cap_connect_cfm+0x1a4/0x3e4) from [<c056f23c>] (hci_event_packet+0x2c8c/0x6798)
[ 162.999359] [<c056f23c>] (hci_event_packet+0x2c8c/0x6798) from [<c0566e64>] (hci_rx_work+0x28c/0x3c0)
[ 163.008575] [<c0566e64>] (hci_rx_work+0x28c/0x3c0) from [<c004c8f8>] (process_one_work+0x138/0x4ac)
[ 163.017639] [<c004c8f8>] (process_one_work+0x138/0x4ac) from [<c004d014>] (worker_thread+0x188/0x374)
[ 163.026855] [<c004d014>] (worker_thread+0x188/0x374) from [<c00522ec>] (kthread+0x98/0xa4)
[ 163.035125] [<c00522ec>] (kthread+0x98/0xa4) from [<c0016318>] (kernel_thread_exit+0x0/0x8)
[ 163.043487] Code: e3a03c02 e3402010 e3403020 e59f0044 (e58c1004)
[ 163.049621] CPU 1 will stop doing anything useful since another CPU has crashed
[ 163.057434] Loading crashdump kernel...
[ 163.061279] Software reset on panic!