小弟出来乍到，有很多不是太懂。如果有什么问题提的比较幼稚，请大神勿喷！
我自己写了一个只打印log的方法，然后注入到True Skate这个app里面，重签名安装后运行闪退。
期间尝试过原包重签名是可以运行的。
运行日志是：
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000000
VM Region Info: 0 is not in any region. Bytes before following region: 4364566528
REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL
UNUSED SPACE AT START
—>
__TEXT 0000000104260000-00000001047d4000 [ 5584K] r-x/r-x SM=COW …pp/True Skate
Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [0]
Triggered by Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 ??? 000000000000000000 0 + 0
1 True Skate 0x00000001045bad78 0x104260000 + 3517816
2 True Skate 0x00000001044fc374 0x104260000 + 2737012
3 True Skate 0x00000001045ccc60 0x104260000 + 3591264
4 UIKit 0x000000018e717770 0x18e6cc000 + 309104
5 QuartzCore 0x0000000188cb925c 0x188b96000 + 1192540
6 QuartzCore 0x0000000188cbd3ec 0x188b96000 + 1209324
7 QuartzCore 0x0000000188c29aa0 0x188b96000 + 604832
8 QuartzCore 0x0000000188c515d0 0x188b96000 + 767440
9 UIKit 0x000000018eb016b4 0x18e6cc000 + 4413108
小弟完全看不懂，还请大神帮忙分析分析是什么原因。