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POWhat causes apps to crash on resume after a long time in background?
 

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  1. POWhat causes apps to crash on resume after a long time in background?
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    <p>I'm finding that after my app has been in the background for a while, (half hour + maybe) it crashes immediately on resume.</p> <p>Crash log reveals that it is EXC_BAD_ACCESS, but I'm at loss for how to debug this one, because I don't know what gets released when my app goes to background (for a long time in particular). (Exception codes are 0x0000000 repeated)</p> <p>Is there any documentation on this / can anyone give insight about what they did to fix this in the past?</p> <p>While we're at it, is there a way to test this without waiting for hours before each try? Some way to simulate whatever it is that is happening to my app?</p> <p>Thanks</p> <h2>Update</h2> <p>I just read a bit more closely, and there's something here about a timer, I added some stuff that uses timers recently to my app, could this give more info? (See item 12)</p> <pre><code>Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libsystem_kernel.dylib 0x32858a1c __pthread_kill + 8 1 libsystem_c.dylib 0x337013b4 pthread_kill + 52 2 libsystem_c.dylib 0x336f9bf8 abort + 72 3 libstdc++.6.dylib 0x30504a64 __gnu_cxx::__verbose_terminate_handler() + 376 4 libobjc.A.dylib 0x3068f06c _objc_terminate + 104 5 libstdc++.6.dylib 0x30502e36 __cxxabiv1::__terminate(void (*)()) + 46 6 libstdc++.6.dylib 0x30502e8a std::terminate() + 10 7 libstdc++.6.dylib 0x30502f5a __cxa_throw + 78 8 libobjc.A.dylib 0x3068dc84 objc_exception_throw + 64 9 MarsCrash 0x0000be88 0x1000 + 44680 10 MarsCrash 0x00020646 0x1000 + 128582 11 Foundation 0x327196ce __NSFireDelayedPerform + 362 12 CoreFoundation 0x334e7a40 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 8 13 CoreFoundation 0x334e9ec4 __CFRunLoopDoTimer + 844 14 CoreFoundation 0x334ea83e __CFRunLoopRun + 1082 15 CoreFoundation 0x3347aebc CFRunLoopRunSpecific + 224 16 CoreFoundation 0x3347adc4 CFRunLoopRunInMode + 52 17 GraphicsServices 0x311a5418 GSEventRunModal + 108 18 GraphicsServices 0x311a54c4 GSEventRun + 56 19 UIKit 0x31b90d62 -[UIApplication _run] + 398 20 UIKit 0x31b8e800 UIApplicationMain + 664 21 MarsCrash 0x00002558 0x1000 + 5464 22 MarsCrash 0x00002500 0x1000 + 5376 </code></pre>
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