iPhone: understanding field crash reports: unrecognized selector?
- by quixoto
Hi all,
A user of my app out in the field seems to having bad crash-at-app-start issues. I got him to send me the .crash files from his PC. After "symbolicating" them according to this article, I get what looks from the stack like a unrecognized selector fail. But the top line of code corresponding to my process is an unambiguous message send that gets executed hundreds of times without issue in my app normally. Needless to say, I never repro this issue myself.
Can the crash report lie? Could this stack indicate anything besides unrecognized selector? Thanks for any insight.
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread: 0
Thread 0 Crashed:
0 libSystem.B.dylib 0x000790a0 __kill + 8
1 libSystem.B.dylib 0x00079090 kill + 4
2 libSystem.B.dylib 0x00079082 raise + 10
3 libSystem.B.dylib 0x0008d20a abort + 50
4 libstdc++.6.dylib 0x00044a1c __gnu_cxx::__verbose_terminate_handler() + 376
5 libobjc.A.dylib 0x000057c4 _objc_terminate + 104
6 libstdc++.6.dylib 0x00042dee __cxxabiv1::__terminate(void (*)()) + 46
7 libstdc++.6.dylib 0x00042e42 std::terminate() + 10
8 libstdc++.6.dylib 0x00042f12 __cxa_throw + 78
9 libobjc.A.dylib 0x000046a4 objc_exception_throw + 64
10 CoreFoundation 0x00094174 -[NSObject doesNotRecognizeSelector:] + 108
11 CoreFoundation 0x00093afa ___forwarding___ + 482
12 CoreFoundation 0x000306c8 _CF_forwarding_prep_0 + 40
13 MyAppProcess 0x000147c6 -[ImageLoader imageSmallForColor:style:] (ImageLoader.m:180)
.... /* many more frames... */
