Good Day,
I know this is questions is about older technology, and this may totally be the wrong forum, but I have no place else to turn. Hopefully one of the experts here can point me in the correct direction. We have developed a kiosk like app on a generic Android tablet that is used for point of sale operations. The application works without issue on an existing tablet running Android 4.1. However due to parts being deprecated, we have been forced to upgrade to a new version of the tablet and such a new version of Android. However after running the existing application on the new tablet, the graphical subsystem crashes after some period of operation. This period can be as short as 20 minutes or longer than a week. The only way to recover from this state is to power cycle the unit. When the crash happens, the application is not executing anything that should be taxing the system. Basically the app is started up and defaults into its basic mode of operation of displaying a text marketing message or a PNG logo splash screen which alternates once every 15 seconds, displaying a digital clock that updates once every second at the center bottom of the screen, and displaying static location information (name of establishment, etc) in bottom right hand corner. No animation, no streaming, etc. Just a very basic kiosk like application.
What we see in the log (see snippet below) every 30 seconds or so, are fence timeout messages, then a listing of objects, then the GPU failure to restart message. Once this happens the entire graphics subsystem is non-functioning, although we can still connect to the unit via the Android debugging bridge - which is how we retrieve the logs. If anyone could point us in the right direction on how to resolve this issue, it would be greatly appreciated. Thank you in advance for any assistance.
Cordially,
Dale
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<<< KERNEL LOG SNIPPET >>>> <6>[259628.544422] fence timeout on [d8534880] after 500ms . . <4>[259568.463295] objs: <4>[259568.463295] -------------- <4>[259568.463295] fb-timeline sw_sync: 286483 <4>[259568.463295] pt signaled@24.203036: 255 <4>[259568.463295] pt signaled@2925.669034: 3516 <4>[259568.463295] pt signaled@243109.259577: 264000 <4>[259568.463295] pt signaled@263766.516201: 286460 <4>[259568.463295] pt signaled@263787.033239: 286483 <4>[259568.463295] pt signaled@263787.033240: 286483 <4>[259568.463295] pt active: 286484 <4>[259568.463295] pt active: 286484 <4>[259568.463295] <4>[259568.463295] mali-170-gp Mali: oldest (286484) next (286484) <4>[259568.463295] <4>[259568.463295] <4>[259568.463295] mali-170-pp Mali: oldest (286484) next (286484) . . . <4>[259627.137394] Mali: Executor GP: Job 1146132 Timeout on Mali_GP <4>[259627.137485] Mali: Dump Group Mali_GP <4>[259627.137535] Mali: 0x0000: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.137608] Mali: 0x0010: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.137681] Mali: 0x0020: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.137753] Mali: 0x0030: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.137825] Mali: 0x0040: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.137897] Mali: 0x0050: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.137969] Mali: 0x0060: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.138041] Mali: 0x0070: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.138113] Mali: 0x0080: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.138184] Mali: 0x0090: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.138257] Mali: 0x00a0: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.138329] Mali: Dump Group MMU <4>[259627.138375] Mali: 0x0000: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.138448] Mali: 0x0010: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.138520] Mali: 0x0020: 0xffffffff 0xffffffff 0xffffffff 0xffffffff <4>[259627.324242] <4>[259627.325415] <4>[259627.325486] <4>[259627.362487] Mali: ERR: drivers/gpu/arm/mali400/mali/common/mali_gp.c <4>[259627.362580] mali_gp_hard_reset() 140 <4>[259627.362580] Mali GP: The hard reset loop didn't work, unable to recover <4>[259627.362660] <4>[259627.521234] <4>[259627.522242] <4>[259627.522313] <4>[259627.551750] Mali: ERR: drivers/gpu/arm/mali400/mali/common/mali_mmu.c <4>[259627.551782] mali_mmu_raw_reset() 279 <4>[259627.551782] Reset request failed, MMU status is 0xFFFFFFFF