ios7 - EXC_BAD_ACCESS (SIGSEGV) and KERN_INVALID_ADDRESS -


this issue getting on nerves. please see crash report , help. in ios 6 app working fine. performing operations. after 30 operations completed experiencing crash. number can go till 20 or 1 also. attaching crash log this. experts please help.

incident identifier: e863e717-de21-4bd0-a203-32e9d4648869 crashreporter key:   b7fe8726c57b6cc93687be0e904625ecf3813fb9 hardware model:      ipad2,5 process:             mobile [3833] path:                 identifier:           version:              code type:           arm (native) parent process:      launchd [1]  date/time:           2014-06-01 17:07:33.679 +0530 os version:          ios 7.0.6 (11b651) report version:      104  exception type:  exc_bad_access (sigsegv) exception subtype: kern_invalid_address @ 0x1e2d1f28 triggered thread:  0  thread 0 crashed: 0   libobjc.a.dylib                 0x38e79b26 objc_msgsend + 6 1   corefoundation                  0x2e618650 cfrelease + 552 2   corefoundation                  0x2e626702 -[__nsdictionaryi dealloc] + 114 3   libobjc.a.dylib                 0x38e89b06 objc_object::sidetable_release(bool) + 170 4   libobjc.a.dylib                 0x38e7b002 (anonymous namespace)::autoreleasepoolpage::pop(void*) + 354 5   corefoundation                  0x2e61b97c _cfautoreleasepoolpop + 12 6   foundation                      0x2f00385c -[nsautoreleasepool release] + 116 7   corefoundation                  0x2e6b3180 __cfrunloop_is_calling_out_to_a_source0_perform_function__ + 12 8   corefoundation                  0x2e6b264e __cfrunloopdosources0 + 202 9   corefoundation                  0x2e6b0e42 __cfrunlooprun + 618 10  corefoundation                  0x2e61bc22 cfrunlooprunspecific + 518 11  corefoundation                  0x2e61ba06 cfrunloopruninmode + 102 12  foundation                      0x2f0093d6 -[nsrunloop(nsrunloop) runmode:beforedate:] + 250 13  mobile                  0x001704d0 -[vfipinpad waitforack] (vfipinpad.m:2876) 14  mobile                  0x00174cd8 -[vfipinpad senddatacommand:calclrc:] (vfipinpad.m:3716) 15  mobile                  0x0017a46a -[vfipinpad setrosparams:threshold:target:targetpercent:] (vfipinpad.m:4702) 16  mobile                  0x0020d5a4 -[vfipwlm starttransaction:origamount:finalamount:surcharge:invoice:discount:promocode:chequedata:avsaddress:avspostcode:email:reftransactionid:gpslatitude:gpslongitude:merchid:terminalid:allowrefundsystembyid:status:statusmsg:tranid:authcode:totalcharge:signaturerequired:voiceauthphone:merchantid:tipamount:receiptdata:cardscheme:] (vfipwlm.m:2840) 17  mobile                  0x00064df0 -[mainviewcontroller starttran] (mainviewcontroller.m:1918) 18  mobile                  0x00077dac -[mainviewcontroller showview] (mainviewcontroller.m:3359) 19  mobile                  0x00084d14 -[mainviewcontroller sc8next] (mainviewcontroller.m:4674) 20  uikit                           0x30e8f70e -[uiapplication sendaction:to:from:forevent:] + 86 21  uikit                           0x30e8f6ae -[uiapplication sendaction:totarget:fromsender:forevent:] + 26 22  uikit                           0x30e8f68c -[uicontrol sendaction:to:forevent:] + 40 23  uikit                           0x30e7b11a -[uicontrol _sendactionsforevents:withevent:] + 370 24  uikit                           0x30e8f102 -[uicontrol touchesended:withevent:] + 586 25  uikit                           0x30e8edd4 -[uiwindow _sendtouchesforevent:] + 524 26  uikit                           0x30e89e60 -[uiwindow sendevent:] + 828 27  uikit                           0x30e5f798 -[uiapplication sendevent:] + 192 28  uikit                           0x30e5df9e _uiapplicationhandleeventqueue + 7094 29  corefoundation                  0x2e6b3180 __cfrunloop_is_calling_out_to_a_source0_perform_function__ + 12 30  corefoundation                  0x2e6b264e __cfrunloopdosources0 + 202 31  corefoundation                  0x2e6b0e42 __cfrunlooprun + 618 32  corefoundation                  0x2e61bc22 cfrunlooprunspecific + 518 33  corefoundation                  0x2e61ba06 cfrunloopruninmode + 102 34  graphicsservices                0x3330f27e gseventrunmodal + 134 35  uikit                           0x30ebf044 uiapplicationmain + 1132 36  mobile                  0x00054ae0 main (main.m:16) 37  libdyld.dylib                   0x39386ab4 start + 0  thread 1: 0   libsystem_kernel.dylib          0x3942a83c kevent64 + 24 1   libdispatch.dylib               0x3936b210 _dispatch_mgr_invoke + 228 2   libdispatch.dylib               0x3936af96 _dispatch_mgr_thread$variant$mp + 34  thread 2 name:  webthread thread 2: 0   libsystem_kernel.dylib          0x3942aa8c mach_msg_trap + 20 1   libsystem_kernel.dylib          0x3942a888 mach_msg + 44 2   corefoundation                  0x2e6b27be __cfrunloopservicemachport + 150 3   corefoundation                  0x2e6b0ee4 __cfrunlooprun + 780 4   corefoundation                  0x2e61bc22 cfrunlooprunspecific + 518 5   corefoundation                  0x2e61ba06 cfrunloopruninmode + 102 6   webcore                         0x36829266 runwebthread(void*) + 414 7   libsystem_pthread.dylib         0x394a5c1a _pthread_body + 138 8   libsystem_pthread.dylib         0x394a5b8a _pthread_start + 98 9   libsystem_pthread.dylib         0x394a3c8c thread_start + 4  thread 3: 0   libsystem_kernel.dylib          0x3942aa8c mach_msg_trap + 20 1   libsystem_kernel.dylib          0x3942a888 mach_msg + 44 2   corefoundation                  0x2e6b27be __cfrunloopservicemachport + 150 3   corefoundation                  0x2e6b0ee4 __cfrunlooprun + 780 4   corefoundation                  0x2e61bc22 cfrunlooprunspecific + 518 5   corefoundation                  0x2e61ba06 cfrunloopruninmode + 102 6   libavfaudio.dylib               0x2d69e584 genericrunloopthread::entry(void*) + 124 7   libavfaudio.dylib               0x2d69299c capthread::entry(capthread*) + 176 8   libsystem_pthread.dylib         0x394a5c1a _pthread_body + 138 9   libsystem_pthread.dylib         0x394a5b8a _pthread_start + 98 10  libsystem_pthread.dylib         0x394a3c8c thread_start + 4  thread 4 name:  com.apple.cfsocket.private thread 4: 0   libsystem_kernel.dylib          0x3943d440 select$darwin_extsn + 20 1   corefoundation                  0x2e6b6680 __cfsocketmanager + 480 2   libsystem_pthread.dylib         0x394a5c1a _pthread_body + 138 3   libsystem_pthread.dylib         0x394a5b8a _pthread_start + 98 4   libsystem_pthread.dylib         0x394a3c8c thread_start + 4  thread 5: 0   libsystem_kernel.dylib          0x3943d440 select$darwin_extsn + 20 1   externalaccessory               0x2eff4352 -[eainputstream _readinputfromaccthread] + 342 2   foundation                      0x2f0cbc82 __nsthread__main__ + 1058 3   libsystem_pthread.dylib         0x394a5c1a _pthread_body + 138 4   libsystem_pthread.dylib         0x394a5b8a _pthread_start + 98 5   libsystem_pthread.dylib         0x394a3c8c thread_start + 4  thread 6: 0   libsystem_kernel.dylib          0x3942aa8c mach_msg_trap + 20 1   libsystem_kernel.dylib          0x3942a888 mach_msg + 44 2   corefoundation                  0x2e6b27be __cfrunloopservicemachport + 150 3   corefoundation                  0x2e6b0ee4 __cfrunlooprun + 780 4   corefoundation                  0x2e61bc22 cfrunlooprunspecific + 518 5   corefoundation                  0x2e65f736 cfrunlooprun + 94 6   coremotion                      0x2ecd2230 ___lldb_unnamed_function1404$$coremotion + 724 7   libsystem_pthread.dylib         0x394a5c1a _pthread_body + 138 8   libsystem_pthread.dylib         0x394a5b8a _pthread_start + 98 9   libsystem_pthread.dylib         0x394a3c8c thread_start + 4  thread 7: 0   libsystem_kernel.dylib          0x3943dc7c __workq_kernreturn + 8 1   libsystem_pthread.dylib         0x394a3dc6 _pthread_wqthread + 306 2   libsystem_pthread.dylib         0x394a3c80 start_wqthread + 4  thread 8: 0   libsystem_kernel.dylib          0x3943dc7c __workq_kernreturn + 8 1   libsystem_pthread.dylib         0x394a3dc6 _pthread_wqthread + 306 2   libsystem_pthread.dylib         0x394a3c80 start_wqthread + 4  thread 9: 0   libsystem_kernel.dylib          0x3943dc7c __workq_kernreturn + 8 1   libsystem_pthread.dylib         0x394a3dc6 _pthread_wqthread + 306 2   libsystem_pthread.dylib         0x394a3c80 start_wqthread + 4  thread 10: 0   libsystem_kernel.dylib          0x3943dc7c __workq_kernreturn + 8 1   libsystem_pthread.dylib         0x394a3dc6 _pthread_wqthread + 306 2   libsystem_pthread.dylib         0x394a3c80 start_wqthread + 4  thread 0 crashed arm thread state (32-bit):     r0: 0x0281f840    r1: 0x31441b29      r2: 0x39647f78      r3: 0x000037f7     r4: 0x559b030e    r5: 0x39632010      r6: 0x0281f840      r7: 0x27dde5a8     r8: 0x0281f844    r9: 0x1e2d1f1c     r10: 0x16895960     r11: 0x00000000     ip: 0x3961f740    sp: 0x27dde568      lr: 0x2e618655      pc: 0x38e79b26   cpsr: 0x40000030


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