chewy
Reputation: 8267
understanding a crash log - KERN_PROTECTION_FAILURE
I am trying to solve a crash which happens every now and then unpredictably and at different points of time during the use of my application. I would very much appreciate any help as I am lost regarding what it can be, I did converted to ARC and used @AutoReleasePool where needed, still I am getting this from time to time...
Date/Time: 2011-11-09 11:30:40.661 +0100 OS Version: iPhone OS 5.0 (9A334) Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_PROTECTION_FAILURE at 0x2fd74da8
Crashed Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 CoreFoundation 0x36e1e786 -[NSArray isEqualToArray:] + 14
1 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
2 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
3 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
4 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
5 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
6 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
7 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
8 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
9 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
10 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
11 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
12 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
13 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
14 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
15 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
16 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
17 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
18 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
19 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
20 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
21 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
22 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
23 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
24 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
25 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
26 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
27 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
28 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
29 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
30 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
31 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
32 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
33 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
34 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
35 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
36 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
37 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
38 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
39 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
40 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
41 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
42 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
43 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
44 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
45 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
46 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
47 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
48 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
49 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
50 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
51 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
52 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
53 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
54 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
55 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
56 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
57 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
58 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
59 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
60 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
61 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
62 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
63 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
64 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
65 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
66 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
67 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
68 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
69 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
70 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
71 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
72 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
73 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
74 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
75 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
76 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
77 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
78 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
79 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
80 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
81 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
82 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
83 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
84 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
85 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
86 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
87 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
88 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
89 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
90 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
91 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
92 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
93 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
94 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
95 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
96 CoreFoundation 0x36e1e876 -[NSArray isEqualToArray:] + 254
97 CoreFoundation 0x36e271cc -[NSArray isEqual:] + 64
98 CoreFoundation 0x36e1ef7e -[NSDictionary isEqualToDictionary:] + 310
99 CoreFoundation 0x36e27d9c -[NSDictionary isEqual:] + 64
100 CoreFoundation 0x36e27d40 -[__NSCFDictionary isEqual:] + 48
this thread carry on going with the same syntax around 300 lines...
Upvotes: 2
Views: 877
Answers (1)
zaph
Reputation: 112855
With no code to look at the best guess is a method is recursively calling itself, either directly or indirectly and not reaching termination. Possibly there is an entry in the NSDictionary or NSArray that references back into itself.
Try pausing the execution in Xcode if possible to get an idea where in your code this is happening.
Post some code.
Upvotes: 3
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