Well it's kind of a debate ... look at ... http://lwn.net/Articles/68149/
Not sure how you would debug, I mean we can keep checking by doing a lsmod, not sure how you would find out the dependent modules... On Tue, Apr 6, 2010 at 10:39 PM, Gururaj BO <guru.nav...@gmail.com> wrote: > Hi Pavan savoy, > > How to debug this issue? Where I have to looking to the kernel code about > this reference count! > > Regards > Gururaja B O > > On Wed, Apr 7, 2010 at 3:43 AM, Pavan Savoy <pavan.sa...@gmail.com> wrote: > >> http://www.mail-archive.com/android-kernel@googlegroups.com/msg00825.html >> it does seem a real problem, in case we go ahead to build drivers as >> modules. >> >> >> >> On Tue, Apr 6, 2010 at 5:12 PM, Pavan Savoy <pavan.sa...@gmail.com>wrote: >> >>> http://www.mail-archive.com/android-kernel@googlegroups.com/msg00825.html >>> >>> >>> On Tue, Apr 6, 2010 at 9:51 AM, Pavan Savoy <pavan.sa...@gmail.com>wrote: >>> >>>> Yes, Have seen it too :( >>>> module usage count doesn't reduce once accessed from UI. No idea WHY... >>>> >>>> So we started loading it during boot. >>>> >>>> >>>> On Tue, Apr 6, 2010 at 12:22 AM, guru <guru.nav...@gmail.com> wrote: >>>> >>>>> Hi Bheemsen, >>>>> >>>>> In unsuccessful case, it is not coming out of D/bluedroid( 1223): >>>>> GURU:Calling delete_module function. >>>>> >>>>> if i do lsmod, it is showing unloading bt module and we cannot remove >>>>> also... >>>>> >>>>> Regards >>>>> Gururaja B O >>>>> On Apr 6, 10:19 am, guru <guru.nav...@gmail.com> wrote: >>>>> > Hi, >>>>> > >>>>> > Below is for successful condition: >>>>> > >>>>> > D/bluedroid( 1223): bt_disable >>>>> > >>>>> > I/bluedroid( 1223): Stopping bluetoothd deamon >>>>> > >>>>> > I/bluedroid( 1223): Remove bt module... >>>>> > >>>>> > D/bluedroid( 1223): rmmod IN >>>>> > >>>>> > D/bluedroid( 1223): GURU:maxtry 9 >>>>> > >>>>> > D/bluedroid( 1223): GURU:Calling delete_module >>>>> > >>>>> > D/mountd ( 1176): Thread recv uevent: remove@/devices/virtual/ >>>>> > bluetooth/hci0 >>>>> > >>>>> > E/dun_service( 1187): The value returned from >>>>> > dun_getusbmodemstate_fromsys is 2 >>>>> > >>>>> > D/mountd ( 1176): Thread recv uevent: remove@/bus/sdio/drivers/ >>>>> > sdio_bt >>>>> > >>>>> > E/dun_service( 1187): The value returned from >>>>> > dun_getusbmodemstate_fromsys is 2 >>>>> > >>>>> > D/mountd ( 1176): Thread recv uevent: remove@/module/bt >>>>> > >>>>> > E/dun_service( 1187): The value returned from >>>>> > dun_getusbmodemstate_fromsys is 2 >>>>> > >>>>> > D/bluedroid( 1223): GURU:Exiting delete_module >>>>> > >>>>> > D/bluedroid( 1223): GURU:Return value of delete_module=0 >>>>> > >>>>> > I/bluedroid( 1223): set_bluetooth_power >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): GURU:init_wirelessutil IN >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): GURU:init_wirelessutil OUT >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): GURU:set_power IN >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): GURU:set_power OUT >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): GURU:deinit_wirelessutil IN >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): GURU:deinit_wirelessutil OUT >>>>> > >>>>> > I/bluedroid( 1223): check_sdcc_ready >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): GURU:init_wirelessutil IN >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): GURU:init_wirelessutil OUT >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): Read (/sys/bus/platform/drivers/msm_sdcc/ >>>>> > msm_sdcc.4/refcnt) : (1) >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): Close /sys/bus/platform/drivers/msm_sdcc/ >>>>> > msm_sdcc.4/refcnt. >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): Start to check sdcc.. >>>>> > >>>>> > D/mountd ( 1176): Thread recv uevent: remove@/devices/platform/ >>>>> > msm_sdcc.4/mmc_host/mmc2/mmc2:0001/mmc2:0001:1 >>>>> > >>>>> > E/dun_service( 1187): The value returned from >>>>> > dun_getusbmodemstate_fromsys is 2 >>>>> > >>>>> > D/mountd ( 1176): Thread recv uevent: remove@/devices/platform/ >>>>> > msm_sdcc.4/mmc_host/mmc2/mmc2:0001/mmc2:0001:2 >>>>> > >>>>> > E/dun_service( 1187): The value returned from >>>>> > dun_getusbmodemstate_fromsys is 2 >>>>> > >>>>> > D/mountd ( 1176): Thread recv uevent: remove@/devices/platform/ >>>>> > msm_sdcc.4/mmc_host/mmc2/mmc2:0001/mmc2:0001:3 >>>>> > >>>>> > E/dun_service( 1187): The value returned from >>>>> > dun_getusbmodemstate_fromsys is 2 >>>>> > >>>>> > D/mountd ( 1176): Thread recv uevent: remove@/devices/platform/ >>>>> > msm_sdcc.4/mmc_host/mmc2/mmc2:0001 >>>>> > >>>>> > E/dun_service( 1187): The value returned from >>>>> > dun_getusbmodemstate_fromsys is 2 >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): SDIO card is removed. >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): Get SDCC refcnt: 1 >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): Decrease reference count. >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): GURU:deinit_wirelessutil IN >>>>> > >>>>> > E/FX_WIRELESSUTIL( 1223): GURU:deinit_wirelessutil OUT >>>>> > >>>>> > I/bluedroid( 1223): set_driver_status >>>>> > >>>>> > I/bluedroid( 1223): bt_disable OUT >>>>> > >>>>> > Unsuccessful case: >>>>> > D/bluedroid( 1223): bt_disable >>>>> > >>>>> > I/bluedroid( 1223): Stopping bluetoothd deamon >>>>> > >>>>> > I/bluedroid( 1223): Remove bt module... >>>>> > >>>>> > D/bluedroid( 1223): rmmod IN >>>>> > >>>>> > D/bluedroid( 1223): GURU:maxtry 9 >>>>> > >>>>> > D/bluedroid( 1223): GURU:Calling delete_module >>>>> > >>>>> > D/dalvikvm( 1436): GC freed 5386 objects / 293040 bytes in 37ms >>>>> > >>>>> > W/ActivityManager( 1223): Timeout of broadcast >>>>> > BroadcastRecord{443e5bf0 android.intent.action.TIME_TICK} - >>>>> > receiver=android.app.ActivityThread$PackageInfo$ReceiverDispatcher >>>>> > $innerrecei...@442b34c0 >>>>> > >>>>> > W/ActivityManager( 1223): Receiver during timeout: >>>>> > BroadcastFilter{44294920 ReceiverList{442a3488 1223 system/1000 >>>>> local: >>>>> > 442b34c0}} >>>>> > >>>>> > I/power ( 1223): *** set_screen_state 0 >>>>> > >>>>> > I/KeyguardViewMediator( 1223): onScreenTurnedOff(2) >>>>> > >>>>> > I/KeyguardViewMediator( 1223): wait keyguard visible in Window >>>>> > timeout,maybe bring some issue time span=500 >>>>> > >>>>> > I/GUI_ORT ( 1223): mOrientationListener is not Ready >>>>> > >>>>> > I/Process ( 1223): Sending signal. PID: 1223 SIG: 3 >>>>> > >>>>> > I/dalvikvm( 1223): threadid=7: reacting to signal 3 >>>>> > >>>>> > I/dalvikvm( 1223): Wrote stack trace to '/local/log/anr/traces.txt' >>>>> > >>>>> > I/Watchdog( 1223): Watchdog is killing the system process >>>>> > >>>>> > W/Process ( 1223): killProcess pid=1223 >>>>> > >>>>> > W/Process ( 1223): java.lang.RuntimeException >>>>> > >>>>> > W/Process ( 1223): at >>>>> android.os.Process.killProcess(Process.java: >>>>> > 730) >>>>> > >>>>> > W/Process ( 1223): at >>>>> com.android.server.Watchdog.run(Watchdog.java: >>>>> > 853) >>>>> > >>>>> > I/Process ( 1223): Sending signal. PID: 1223 SIG: 9 >>>>> > >>>>> > regards >>>>> > Gururaja >>>>> > On Apr 6, 9:54 am, Bheemsen <bheems...@gmail.com> wrote: >>>>> > >>>>> > > Can you attach the logs (logcat). >>>>> > >>>>> > > Regards, >>>>> > > Bheemsen >>>>> > >>>>> > > On Tue, Apr 6, 2010 at 10:05 AM, guru <guru.nav...@gmail.com> >>>>> wrote: >>>>> > > > Hi All, >>>>> > >>>>> > > > I performed the below task repeatedly from Bluetooth UI >>>>> > >>>>> > > > 1. Bluetooth trun on/off >>>>> > > > 2. make bluetooth discoverable >>>>> > > > 3. scan for devices >>>>> > >>>>> > > > after doing these tasks for 10 to 15 times, Bluetooth application >>>>> > > > hangs. >>>>> > >>>>> > > > when I see the log... it is telling "module unloading"... but it >>>>> > > > doesnt unload. It gives errno 16(device or resource busy) if >>>>> tried to >>>>> > > > unload the module manually... >>>>> > >>>>> > > > why this error is coming? and where I have to look-in to this >>>>> problem? >>>>> > >>>>> > > > Thanks >>>>> > > > Gururaja b O >>>>> > >>>>> > > > -- >>>>> > > > unsubscribe: >>>>> > > > android-porting+unsubscr...@googlegroups.com<android-porting%2bunsubscr...@googlegroups.com> >>>>> <android-porting%2bunsubscr...@googlegroups.com<android-porting%252bunsubscr...@googlegroups.com> >>>>> > >>>>> > > > website:http://groups.google.com/group/android-porting >>>>> > >>>>> > > > To unsubscribe, reply using "remove me" as the subject. >>>>> > >>>>> > > -- >>>>> > > Regards >>>>> > > Bheemsen >>>>> >>>>> -- >>>>> unsubscribe: >>>>> android-porting+unsubscr...@googlegroups.com<android-porting%2bunsubscr...@googlegroups.com> >>>>> website: http://groups.google.com/group/android-porting >>>>> >>>> >>>> >>>> >>>> -- >>>> --Pavan Savoy >>>> >>>> >>> >>> >>> -- >>> --Pavan Savoy >>> >>> >> >> >> -- >> --Pavan Savoy >> >> -- >> unsubscribe: >> android-kernel+unsubscr...@googlegroups.com<android-kernel%2bunsubscr...@googlegroups.com> >> website: http://groups.google.com/group/android-kernel > > > -- > unsubscribe: > android-kernel+unsubscr...@googlegroups.com<android-kernel%2bunsubscr...@googlegroups.com> > website: http://groups.google.com/group/android-kernel -- --Pavan Savoy -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
