strange crash in NSKeyedArchiver
I got lots of crash log in my app with stack like this:
0 CoreFoundation 0x31961aac __CFBasicHashRehash (in CoreFoundation) 408
1 CoreFoundation 0x31962e4c __CFBasicHashAddValue (in CoreFoundation) 92
2 CoreFoundation 0x3188d198 CFBasicHashAddValue (in CoreFoundation) 3052
3 CoreFoundation 0x3188c556 CFDictionaryAddValue (in CoreFoundation) 166
4 CoreFoundation 0x3189b91c _flattenPlist (in CoreFoundation) 168
5 CoreFoundation 0x3189b9f2 _flattenPlist (in CoreFoundation) 382
6 CoreFoundation 0x3189b978 _flattenPlist (in CoreFoundation) 260
7 CoreFoundation 0x318fb9ce __CFBinaryPlistWrite (in CoreFoundation) 126
8 CoreFoundation 0x318fbcb6 __CFBinaryPlistWriteToStreamWithOptions (in CoreFoundation) 14
9 Foundation 0x321c1160 -[NSKeyedArchiver finishEncoding] (in Foundation) 556
10 Foundation 0x3223f176 [NSKeyedArchiver archiveRootObject:toFile:] (in Foundation) 234
all crash in __CFBasicHashRehash,I can't repro this crash, so i don't know how to fix it.
Somebody any idea?
Ps:
iPhone 4S, iOS 6.1.3