iphone - iOS Crash with name SIGSEGV and reason main -

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i'm using crittercism (sdk 3.5.1) crash reporting service catch reports on ios app. i've been getting error many times , i've no idea why it's happening.

name: sigsegv - reason: main

here full report crittercism:

threads _________________________________ thread: unknown name (crashed) 0     libobjc.a.dylib                       0x39917526 objc_retain + 6 1     uikit                                 0x33a92ab3 -[uiviewanimationstate senddelegateanimationdidstop:finished:] + 159 2     uikit                                 0x33b078ef -[uiviewanimationstate animationdidstop:finished:] + 51 3     quartzcore                            0x3383cc01 _zn2ca5layer23run_animation_callbacksepv + 209 4     libdispatch.dylib                     0x39d314b7 _dispatch_client_callout + 23 5     libdispatch.dylib                     0x39d32dcb _dispatch_main_queue_callback_4cf$variant$up + 227 6     corefoundation                        0x31c48f3b __cfrunlooprun + 1291 7     corefoundation                        0x31bbbebd cfrunlooprunspecific + 357 8     corefoundation                        0x31bbbd49 cfrunloopruninmode + 105 9     graphicsservices                      0x3577f2eb gseventrunmodal + 75 10   uikit                                  0x33ad1301 uiapplicationmain + 1121 11   myappname                              0x0002e29b main (main.m:17)  thread: unknown name 0     libsystem_kernel.dylib                0x39e08648 kevent64 + 24 1     libdispatch.dylib                     0x39d33df8 _dispatch_mgr_thread$variant$up + 36  thread: unknown name 0     libsystem_kernel.dylib                0x39e07eb4 mach_msg_trap + 20 1     corefoundation                        0x31c4a045 __cfrunloopservicemachport + 129 2     corefoundation                        0x31c48da3 __cfrunlooprun + 883 3     corefoundation                        0x31bbbebd cfrunlooprunspecific + 357 4     corefoundation                        0x31bbbd49 cfrunloopruninmode + 105 5     webcore                               0x37bba505 _zl12runwebthreadpv + 445 6     libsystem_c.dylib                     0x39d71311 _pthread_start + 309  thread: unknown name 0     libsystem_kernel.dylib                0x39e07eb4 mach_msg_trap + 20 1     corefoundation                        0x31c4a045 __cfrunloopservicemachport + 129 2     corefoundation                        0x31c48da3 __cfrunlooprun + 883 3     corefoundation                        0x31bbbebd cfrunlooprunspecific + 357 4     corefoundation                        0x31bbbd49 cfrunloopruninmode + 105 5     foundation                            0x325083d5 +[nsurlconnection(loader) _resourceloadloop:] + 309 6     foundation                            0x3258be85 __nsthread__main__ + 973 7     libsystem_c.dylib                     0x39d71311 _pthread_start + 309  thread: unknown name 0     libsystem_kernel.dylib                0x39e07eb4 mach_msg_trap + 20 1     corefoundation                        0x31c4a045 __cfrunloopservicemachport + 129 2     corefoundation                        0x31c48da3 __cfrunlooprun + 883 3     corefoundation                        0x31bbbebd cfrunlooprunspecific + 357 4     corefoundation                        0x31bbbd49 cfrunloopruninmode + 105 5     foundation                            0x324def97 -[nsrunloop(nsrunloop) runmode:beforedate:] + 255 6     foundation                            0x32582865 -[nsrunloop(nsrunloop) run] + 81 7     myappname                             0x001000c1 +[afurlconnectionoperation networkrequestthreadentrypoint:] (afurlconnectionoperation.m:182) 8     foundation                            0x3258be85 __nsthread__main__ + 973 9     libsystem_c.dylib                     0x39d71311 _pthread_start + 309  thread: unknown name 0     libsystem_kernel.dylib                0x39e18594 select$darwin_extsn + 20 1     libsystem_c.dylib                     0x39d71311 _pthread_start + 309  thread: unknown name 0     libsystem_kernel.dylib                0x39e18d98 __workq_kernreturn + 8 1     libsystem_c.dylib                     0x39d66a16 _pthread_wqthread + 366  thread: unknown name 0     libsystem_kernel.dylib                0x39e18d98 __workq_kernreturn + 8 1     libsystem_c.dylib                     0x39d66a16 _pthread_wqthread + 366  thread: unknown name 0     libsystem_kernel.dylib                0x39e18d98 __workq_kernreturn + 8 1     libsystem_c.dylib                     0x39d66a16 _pthread_wqthread + 366    crashed registers _________________________________ r12 0xb9e49 r10 0x0 r11 0x10 cpsr    0x30 r4  0x1fb79160 r5  0x1f4158 r6  0x33efe80f r7  0x2fdd9e84 r0  0x1fb16050 r1  0x80000000 r2  0x2 r3  0x790ca8e9 sp  0x2fdd9e78 r8  0x1 r9  0xa25701 pc  0x39917526 lr  0xb9095

first guess delegate you've set like:

[uiview setanimationdelegate:self];

has been freed before animation has finished.


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