App crashes in the thread named com.apple.CFURLCACHE_work_queue - ios

Question

My app crashed in the thread named com.apple.CFURLCACHE_work_queue and the crash logs doesn't seem to provide any clues for me to find a bug or mistake =(
Thread 10 name: Dispatch queue: com.apple.CFURLCACHE_work_queue
Thread 10 Crashed:
0 libsystem_kernel.dylib 0x32e93350 __pthread_kill + 8
1 libsystem_c.dylib 0x3b04011e pthread_kill + 54
2 libsystem_c.dylib 0x3b07c96e abort + 90
3 libc++abi.dylib 0x343ebd4a abort_message + 70
4 libc++abi.dylib 0x343e8ff4 default_terminate() + 20
5 libobjc.A.dylib 0x3559fa74 _objc_terminate() + 144
6 libc++abi.dylib 0x343e9078 safe_handler_caller(void (*)()) + 76
7 libc++abi.dylib 0x343e9110 std::terminate() + 16
8 libc++abi.dylib 0x343ea50e __cxa_throw + 118
9 libobjc.A.dylib 0x3559f9ba objc_exception_throw + 90
10 Foundation 0x34d42b60 _NSOutOfMemoryErrorHandler + 56
11 CoreFoundation 0x3725130a __CFDataHandleOutOfMemory + 90
12 CoreFoundation 0x37251458 __CFDataGrow + 288
13 CoreFoundation 0x371d6134 CFDataReplaceBytes + 360
14 CoreFoundation 0x371e3a9a CFDataAppendBytes + 82
15 CFNetwork 0x33150438 CopyAllDataFromDataArray(__CFArray const*) + 104
16 CFNetwork 0x331509ae __CFURLCache::ExecuteSQLInsert(_CFCachedURLResponse const*, __CFString const*, _CFURLRequest const*) + 370
17 CFNetwork 0x3314ec62 __CFURLCache::AddCachedResponseForRequest(__CFURLCacheNode*, _CFCachedURLResponse const*, _CFURLRequest const*) + 58
18 CFNetwork 0x3314eab8 __CFURLCache::ProcessCacheTasks0(bool) + 140
19 CFNetwork 0x3314ea1c __CFURLCache::ProcessCacheTasks(bool) + 32
20 CFNetwork 0x3314e8f0 __CFURLCache::_CFURLCacheTimerCallback0() + 280
21 CFNetwork 0x3314e7c8 __CFURLCache::_CFURLCacheTimerCallback(void*) + 28
22 libdispatch.dylib 0x35f86134 _dispatch_source_invoke$VARIANT$mp + 248
23 libdispatch.dylib 0x35f83e8e _dispatch_queue_drain$VARIANT$mp + 78
24 libdispatch.dylib 0x35f83dbc _dispatch_queue_invoke$VARIANT$mp + 36
25 libdispatch.dylib 0x35f8491a _dispatch_root_queue_drain + 182
26 libdispatch.dylib 0x35f84abc _dispatch_worker_thread2 + 80
27 libsystem_c.dylib 0x3b017a0e _pthread_wqthread + 358
28 libsystem_c.dylib 0x3b0178a0 start_wqthread + 4
any idea or clue of why this happens?
I guess it has something to do with NSURLCache, but I don't manipulate or even create that object in my app.
I'm using Xcode 4.5 GM - I know it's not publicly released yet - and AFNetworking 1.0RC3 for network communication and downloading image data

Answer 1

From the look of things in numbers 10 and 11, it ran out of memory and threw an exception, maybe as part of some kind of assertion.
You will probably find exception information in the console log for the device. If you can connect your device to your Mac, you can access this data in Xcode. Devices don't keep much console data, so it is best to get the log very soon after encountering the error.