android - Random phone reboot (tombstone added) -


i'm testing app make extensive use of bluetooth antenna. phone reboots no apparent reason. i've extracted last tombostone got phone.

can me understand reason behind reboot? feel wrong bt adapter.

here top part of tombstone, if need more i'll add rest.

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** build fingerprint: 'samsung/gt-i9001/gt-i9001:2.3.6/gingerbread/xxkqn:user/release-keys' pid: 357, tid: 2204, name: bluetoothadapte  >>> system_server <<< signal 11 (sigsegv), code 1 (segv_maperr), fault addr deadbaad     r0 00000027  r1 deadbaad  r2 40051b50  r3 00000000     r4 00000000  r5 55fcea14  r6 40a88f7f  r7 00000000     r8 000004ae  r9 55fceb1c  sl 401f56a3  fp 00000000     ip 40a8cebc  sp 55fcea10  lr 40023e91  pc 4002060a  cpsr 600b0030     d0  6163696c70706120  d1  697375206e6f6974     d2  442065687420676e  d3  62696c207375422d     d4  7373616c43000000  d5  0c00000000750100     d6  0400000000005a02  d7  006e6f6349000000     d8  0000000000000000  d9  0000000000000000     d10 0000000000000000  d11 0000000000000000     d12 0000000000000000  d13 0000000000000000     d14 0000000000000000  d15 0000000000000000     d16 64656c6961662022  d17 656c6966206e6920     d18 0049535352000000  d19 040000ffd2006e01     d20 00656d614e000000  d21 530000000a007301     d22 5320676e75736d61  d23 0d00000000000033     d24 3fede16b9c24a98f  d25 3fe55559ee5e69f9     d26 0000000000000000  d27 0000000000000000     d28 0000000000000005  d29 0000000000000000     d30 0000000000000000  d31 0000000000000000     scr 80000010

i think part relevant aswell :

05-15 11:45:05.943   357  2204 d bluetootheventloop: property changed: discovering : true 05-15 11:45:08.095   357  2204 d bluetoothservice: updatedeviceservicechannelcache(84:51:81:74:29:d4) 05-15 11:45:08.095   357  2204 e bluetoothservice: error: object path null 05-15 11:45:08.095   357  2204 e libdbus : arguments dbus_message_new_method_call() incorrect, assertion "path != null" failed in file external/dbus/dbus/dbus-message.c line 1198. bug in application using d-bus library. 05-15 11:45:08.105   357  2204 f libc    : fatal signal 11 (sigsegv) @ 0xdeadbaad (code=1), thread 2204 (bluetoothadapte)

so wrong happens libdbus have no idea how triggered application.

sorry don't understand how read tombstone file, think can give pointers on in order find out why error happening.

first: consider fact power supplied devices radio equipment (including bluetooth) fluctuates based on strength on signal , interference. second: there power states in wireless radio can be. example when wifi on not being actively used phone puts low power state can take few seconds full power state, true bluetooth radio. process of changing state has big impact on power drawn on battery , can lead restarts if there flaws in or other part of power circuit. try keeping bluethooth radio in active state doing small operation (like ping on wifi network or similar) , see if phone becomes hot while doing this. third: probable suspect hardware issue test on other phones available or try testing while phone on power adapter (plugged power socket not usb since voltage change on usb can lead restarting device)

note: consider changing title of question since doesn't problem , not question.


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