Part of a crash log report that caused my iPhone not to sync last night: Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000100700000 VM Regions Near 0x100700000: MALLOC_TINY 0000000100600000-0000000100700000 [ 1024K] rw-/rwx SM=PRV --> STACK GUARD 0000000100700000-0000000100701000 [ 4K] ---/rwx SM=NUL stack guard for thread 1 Stack 0000000100701000-0000000100783000 [ 520K] rw-/rwx SM=COW thread 1 Thread 0 Crashed:: Dispatch queue: com.apple.main-thread