Ok, I have an iPhone 4 running 5.1.1
This happened to me in the past and then went away after a fresh restore (not from backup)
but it began happening to me again today.

If I receive a call when the screen on my phone is on, everything is normal and functioning correctly.
However, when I receive a call when my display is asleep, the phone does not even ring and restarts in Safe Mode. I can receive calls fine when I am in Safe Mode (hence, a Cydia issue).

Here is my latest Crash log from CrashReporter:

## Crash log
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>AutoSubmitted</key>
<true/>
<key>SysInfoCrashReporterKey</key>
<string>24aa5eacf74beeaf7f299f9d3431652c5533cf2c </string>
<key>bug_type</key>
<string>109</string>
<key>description</key>
<string>Incident Identifier: 4010BF92-65B4-482C-A4DA-D455B625238C
CrashReporter Key: 24aa5eacf74beeaf7f299f9d3431652c5533cf2c
Hardware Model: iPhone3,1
Process: ReportCrash [6526]
Path: /System/Library/CoreServices/ReportCrash
Identifier: ReportCrash
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]

Date/Time: 2012-07-12 20:37:52.305 -0700
OS Version: iPhone OS 5.1.1 (9B208)
Report Version: 104

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000004
Crashed Thread: 4

Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 libsystem_kernel.dylib 0x368bd628 0x368ac000 + 71208 // __semwait_signal + 0x18
1 libsystem_c.dylib 0x331f9b1a 0x331e7000 + 76570 // nanosleep + 0x8a
2 libsystem_c.dylib 0x33204608 0x331e7000 + 120328 // sleep + 0x28
3 ReportCrash 0x0001d6f2 0x15000 + 34546 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x28ee
4 ReportCrash 0x00016474 0x15000 + 5236

Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x368ad3a8 0x368ac000 + 5032 // kevent + 0x18
1 libdispatch.dylib 0x376daea4 0x376ce000 + 52900 // _dispatch_mgr_invoke + 0x2c4
2 libdispatch.dylib 0x376dabc2 0x376ce000 + 52162 // _dispatch_mgr_thread + 0x1e

Thread 2:
0 libsystem_kernel.dylib 0x368bdcd4 0x368ac000 + 72916 // __workq_kernreturn + 0x8
1 libsystem_c.dylib 0x331eff36 0x331e7000 + 36662 // _pthread_wqthread + 0x262
2 libsystem_c.dylib 0x331efcc8 0x331e7000 + 36040 // start_wqthread + 0x0

Thread 3:
0 libsystem_kernel.dylib 0x368bdcd4 0x368ac000 + 72916 // __workq_kernreturn + 0x8
1 libsystem_c.dylib 0x331eff36 0x331e7000 + 36662 // _pthread_wqthread + 0x262
2 libsystem_c.dylib 0x331efcc8 0x331e7000 + 36040 // start_wqthread + 0x0

Thread 4 Crashed:
0 CoreSymbolication 0x35d1638c 0x35cfe000 + 99212 // TExtendedMachOHeader&lt;SizeAndEndianness&lt;Point er32, LittleEndian&gt; &gt;::gc_support_flags() const + 0xfc
1 CoreSymbolication 0x35d14e54 0x35cfe000 + 93780 // CSCppSymbolOwnerData* create_symbol_owner_data_arch_specific&lt;SizeAndE ndianness&lt;Pointer32, LittleEndian&gt; &gt;(CSCppSymbolOwner*, CSCppDsymData*) + 0x10f8
2 CoreSymbolication 0x35d0fb3c 0x35cfe000 + 72508 // __ZL25create_symbol_owner_data2P16CSCppSymbolOwner P13CSCppDsymData + 0x84
3 CoreSymbolication 0x35d0f9e0 0x35cfe000 + 72160 // CSCppSymbolOwnerCache::create_symbol_owner_data(CS CppSymbolOwner*, CSCppDsymData*) + 0x11c
4 CoreSymbolication 0x35d0fef0 0x35cfe000 + 73456 // CSCppSymbolOwnerCache::data_for_symbol_owner(CSCpp SymbolOwner*) + 0x18
5 CoreSymbolication 0x35d0eb26 0x35cfe000 + 68390 // CSCppSymbolOwner::data() + 0xa
6 CoreSymbolication 0x35d0a088 0x35cfe000 + 49288 // CSSymbolOwnerForeachRegion + 0x14
7 ReportCrash 0x0001bb3a 0x15000 + 27450 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0xd36
8 CoreSymbolication 0x35d08138 0x35cfe000 + 41272 // CSSymbolicatorForeachSymbolOwnerAtTime + 0xc0
9 ReportCrash 0x0001a4f4 0x15000 + 21748 // -[CrashReport _extractBinaryImageInfoUsingSymbolicator:] + 0x238
10 ReportCrash 0x0001b58a 0x15000 + 25994 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x786
11 ReportCrash 0x0001e0d6 0x15000 + 37078 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x32d2
12 ReportCrash 0x0001f0a0 0x15000 + 41120 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x429c
13 ReportCrash 0x0001ed5a 0x15000 + 40282 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x3f56
14 libsystem_kernel.dylib 0x368bb822 0x368ac000 + 63522 // mach_msg_server_once + 0x126
15 ReportCrash 0x0001d1c6 0x15000 + 33222 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x23c2
16 libsystem_c.dylib 0x331f572e 0x331e7000 + 59182 // _pthread_start + 0x13a
17 libsystem_c.dylib 0x331f55e8 0x331e7000 + 58856 // thread_start + 0x0

Thread 5:
0 libsystem_kernel.dylib 0x368ad004 0x368ac000 + 4100 // mach_msg_trap + 0x14
1 libsystem_kernel.dylib 0x368ad1fa 0x368ac000 + 4602 // mach_msg + 0x32
2 libsystem_kernel.dylib 0x368bb7c2 0x368ac000 + 63426 // mach_msg_server_once + 0xc6
3 ReportCrash 0x0001d1c6 0x15000 + 33222 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x23c2
4 libsystem_c.dylib 0x331f572e 0x331e7000 + 59182 // _pthread_start + 0x13a
5 libsystem_c.dylib 0x331f55e8 0x331e7000 + 58856 // thread_start + 0x0

Thread 4 crashed with ARM Thread State:
r0: 0x00000000 r1: 0x00000000 r2: 0x00000000 r3: 0x00000000
r4: 0x35d21c1d r5: 0x0da31444 r6: 0x0da31400 r7: 0x0027fcb0
r8: 0x00000025 r9: 0x00000000 r10: 0x0da31274 r11: 0x00000005
ip: 0xffffffed sp: 0x0027fc78 lr: 0x368ace7d pc: 0x35d1638c
cpsr: 0x60000030

Binary Images:
0x15000 - 0x26fff ReportCrash armv7 &lt;8e17e49f967c33108d90c86d3b32f531&gt; /System/Library/CoreServices/ReportCrash
0x32000 - 0x32fff +MobileSubstrate.dylib armv6 &lt;d8da1cc9b8ea37cfba03a60549cdac4c&gt; /Library/MobileSubstrate/MobileSubstrate.dylib
0x57000 - 0x58fff +SubstrateLoader.dylib armv6 &lt;825b732151e6379b9cbec6e597a986fa&gt; /Library/Frameworks/CydiaSubstrate.framework/Libraries/SubstrateLoader.dylib
0x2fe14000 - 0x2fe35fff dyld armv7 &lt;77eddfd654df393ba9c95ff01715fd08&gt; /usr/lib/dyld
0x30944000 - 0x30a89fff CoreGraphics armv7 &lt;903545b89a7f311d95100ac7d1d44709&gt; /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
0x31201000 - 0x3120dfff libCRFSuite.dylib armv7 &lt;bdb2b4d1a78c39c1ba60d791207aed2a&gt; /usr/lib/libCRFSuite.dylib
0x3120e000 - 0x3120efff liblangid.dylib armv7 &lt;644ff4bcfbf337b5b5859e3f0fc0a9a8&gt; /usr/lib/liblangid.dylib
0x312d8000 - 0x312f5fff libsystem_info.dylib armv7 &lt;50863bcbf478323e96a8e5b1a83ea6f9&gt; /usr/lib/system/libsystem_info.dylib
0x314f8000 - 0x31577fff libsqlite3.dylib armv7 &lt;bf01f5ed47b033d8bde30d735ff44416&gt; /usr/lib/libsqlite3.dylib
0x317bc000 - 0x317c5fff libMobileGestalt.dylib armv7 &lt;4a15e845dc6f3a4a980de66c1cc44c42&gt; /usr/lib/libMobileGestalt.dylib
0x317c6000 - 0x31817fff libstdc++.6.dylib armv7 &lt;c352af5a742e3c7a8d4d7e5f6f454793&gt; /usr/lib/libstdc++.6.dylib
0x3192d000 - 0x31931fff libcache.dylib armv7 &lt;98fa4b090d693115809eb6529e9beb8b&gt; /usr/lib/system/libcache.dylib
0x324b1000 - 0x3255efff libxml2.2.dylib armv7 &lt;58d47f064e0232119f4b838ad659f9c1&gt; /usr/lib/libxml2.2.dylib
0x3255f000 - 0x325a2fff libcommonCrypto.dylib armv7 &lt;1e32693f0983309b83784500fe1f9128&gt; /usr/lib/system/libcommonCrypto.dylib
0x32779000 - 0x3277cfff libsystem_network.dylib armv7 &lt;97feb1ab69973d1d84dbf3f4eb0dd0ad&gt; /usr/lib/system/libsystem_network.dylib
0x32834000 - 0x32835fff libdyld.dylib armv7 &lt;977b0ad6f2f433108b4a0324a57cd2ab&gt; /usr/lib/system/libdyld.dylib
0x3283f000 - 0x329bdfff Foundation armv7 &lt;c40ddb073142315bb4ebb214343d0b7f&gt; /System/Library/Frameworks/Foundation.framework/Foundation
0x32a07000 - 0x32a3efff Security armv7 &lt;eea56f71fde83c2981f9281dc7823725&gt; /System/Library/Frameworks/Security.framework/Security
0x330b5000 - 0x3317bfff libobjc.A.dylib armv7 &lt;90014d1bc583366d85622e43097df416&gt; /usr/lib/libobjc.A.dylib
0x33198000 - 0x331bbfff Bom armv7 &lt;c3435ecd2e5839f89de51edad0e1bb00&gt; /System/Library/PrivateFrameworks/Bom.framework/Bom
0x331e7000 - 0x33273fff libsystem_c.dylib armv7 &lt;50504d85a72b3857a1702a2084dca557&gt; /usr/lib/system/libsystem_c.dylib
0x333a2000 - 0x333eefff CoreTelephony armv7 &lt;b8f80d5d594c31d2b5d8fba9fdedb7e1&gt; /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
0x33507000 - 0x3350dfff liblockdown.dylib armv7 &lt;9e45ce468a6f31e5b8263f2c224aa800&gt; /usr/lib/liblockdown.dylib
0x3357e000 - 0x3357efff libgcc_s.1.dylib armv7 &lt;eb82984fa36c329387aa518aa5205f3d&gt; /usr/lib/libgcc_s.1.dylib
0x3357f000 - 0x33586fff libc++abi.dylib armv7 &lt;bab4dcbfc5943d3fbb637342d35e8045&gt; /usr/lib/libc++abi.dylib
0x337b1000 - 0x33888fff CFNetwork armv7 &lt;765a472c824830eea91b8f02d12867e4&gt; /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x338c1000 - 0x338c2fff libdnsinfo.dylib armv7 &lt;9aede8d6579d3430ac39ae5f95cce498&gt; /usr/lib/system/libdnsinfo.dylib
0x33d99000 - 0x33da5fff libz.1.dylib armv7 &lt;36ce86a3dc8c344596c8c325615f374b&gt; /usr/lib/libz.1.dylib
0x34a50000 - 0x34a51fff libsystem_sandbox.dylib armv7 &lt;6a8f2f33c7543808a0f4599101c3b61a&gt; /usr/lib/system/libsystem_sandbox.dylib
0x34a8f000 - 0x34a94fff libsystem_dnssd.dylib armv7 &lt;4729a67709ba39e98750fdd6b36a3317&gt; /usr/lib/system/libsystem_dnssd.dylib
0x34a9b000 - 0x34aa0fff libcopyfile.dylib armv7 &lt;52e874396c393ed29099789ce702cfe2&gt; /usr/lib/system/libcopyfile.dylib
0x34aa2000 - 0x34bebfff libicucore.A.dylib armv7 &lt;b70646b63f1f3b33896dd8cb91b8dab1&gt; /usr/lib/libicucore.A.dylib
0x34bec000 - 0x34c28fff AppSupport armv7 &lt;311eac85b2a433a884dacba77217b49e&gt; /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
0x34dcb000 - 0x34dcbfff libkeymgr.dylib armv7 &lt;ebd2dddf55d83cf48a18913968775960&gt; /usr/lib/system/libkeymgr.dylib
0x35ce5000 - 0x35ce6fff libsystem_blocks.dylib armv7 &lt;9fdc27af7350323bbc7d98e14e027907&gt; /usr/lib/system/libsystem_blocks.dylib
0x35ce7000 - 0x35ce9fff MobileInstallation armv7 &lt;215d93dbb0f63cbf828f9126eb7b5349&gt; /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallation
0x35cfe000 - 0x35d37fff CoreSymbolication armv7 &lt;49f7f06d807a3fc1835b57d1bad7ef05&gt; /System/Library/PrivateFrameworks/CoreSymbolication.framework/CoreSymbolication
0x360af000 - 0x360cefff libSystem.B.dylib armv7 &lt;0c55744b6f7335eebba4ca2c3d10b43c&gt; /usr/lib/libSystem.B.dylib
0x36236000 - 0x36237fff libremovefile.dylib armv7 &lt;402f8956975d3b6fb86ab9b31a43242c&gt; /usr/lib/system/libremovefile.dylib
0x36876000 - 0x368abfff SystemConfiguration armv7 &lt;4464a4e3bb3f32f7abaa35ebf31fda49&gt; /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x368ac000 - 0x368c2fff libsystem_kernel.dylib armv7 &lt;311f379a9fde305d80c1b22b7dd2e52a&gt; /usr/lib/system/libsystem_kernel.dylib
0x368cf000 - 0x368defff GenerationalStorage armv7 &lt;d84c3fd0e7bd36e78c256f2f4c5a4e91&gt; /System/Library/PrivateFrameworks/GenerationalStorage.framework/GenerationalStorage
0x36abe000 - 0x36ac8fff libbz2.1.0.dylib armv7 &lt;40e4045fb79e382b8833707746cf28b1&gt; /usr/lib/libbz2.1.0.dylib
0x36ace000 - 0x36b1efff Symbolication armv7 &lt;b3f6d3badacc3895baca220a1ba64079&gt; /System/Library/PrivateFrameworks/Symbolication.framework/Symbolication
0x36bc1000 - 0x36bc1fff libunwind.dylib armv7 &lt;e0a73a57795f3e1698a52ebe6fc07005&gt; /usr/lib/system/libunwind.dylib
0x36be7000 - 0x36bedfff MobileKeyBag armv7 &lt;e1f06241ef0e3f0aae00f15df572077e&gt; /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
0x36bee000 - 0x36d05fff CoreFoundation armv7 &lt;6d450fe923d7387f8b01845e0edd713d&gt; /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x36d7e000 - 0x36d84fff liblaunch.dylib armv7 &lt;aa2bcba6fc7a36a191958fef2e995475&gt; /usr/lib/system/liblaunch.dylib
0x36e2a000 - 0x36e2dfff libcompiler_rt.dylib armv7 &lt;b2c05d8601c13be884097192dca4e187&gt; /usr/lib/system/libcompiler_rt.dylib
0x36f3b000 - 0x36f79fff IOKit armv7 &lt;fcda71d29d6136dfbd84c1725f4998e5&gt; /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x36fff000 - 0x37002fff libmacho.dylib armv7 &lt;e52b77623bd031bc807e77029566c777&gt; /usr/lib/system/libmacho.dylib
0x37356000 - 0x3735bfff CrashReporterSupport armv7 &lt;dc11c5c2cbe73a6288a6094ebf5de673&gt; /System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport
0x373e3000 - 0x373f4fff libxpc.dylib armv7 &lt;ccf25b1e49ce3b2fa58d8c8546755505&gt; /usr/lib/system/libxpc.dylib
0x376ce000 - 0x376e4fff libdispatch.dylib armv7 &lt;9ecfaef4110a3bf9a92d12f0fe8d1d78&gt; /usr/lib/system/libdispatch.dylib
0x3793d000 - 0x37943fff libnotify.dylib armv7 &lt;9406297de3e43742887890662a87ab53&gt; /usr/lib/system/libnotify.dylib
</string>
<key>displayName</key>
<string>ReportCrash</string>
<key>name</key>
<string>ReportCrash</string>
<key>os_version</key>
<string>iPhone OS 5.1.1 (9B208)</string>
<key>system_ID</key>
<string></string>
<key>version</key>
<string>??? (???)</string>
<key>blame</key><array>
<array><string>/System/Library/CoreServices/ReportCrash</string><integer>61</integer></array>
</array>
</dict>
</plist>





And here is one from 10 seconds before the latest one:



## Crash log
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>AutoSubmitted</key>
<true/>
<key>SysInfoCrashReporterKey</key>
<string>24aa5eacf74beeaf7f299f9d3431652c5533cf2c </string>
<key>bug_type</key>
<string>109</string>
<key>description</key>
<string>Incident Identifier: 8E91D971-9137-4854-AB61-54A51E21BAAC
CrashReporter Key: 24aa5eacf74beeaf7f299f9d3431652c5533cf2c
Hardware Model: iPhone3,1
Process: ReportCrash [6522]
Path: /System/Library/CoreServices/ReportCrash
Identifier: ReportCrash
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]

Date/Time: 2012-07-12 20:37:42.638 -0700
OS Version: iPhone OS 5.1.1 (9B208)
Report Version: 104

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x00000004
Crashed Thread: 4

Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0:
0 libsystem_kernel.dylib 0x368bd628 0x368ac000 + 71208 // __semwait_signal + 0x18
1 libsystem_c.dylib 0x331f9b1a 0x331e7000 + 76570 // nanosleep + 0x8a
2 libsystem_c.dylib 0x33204608 0x331e7000 + 120328 // sleep + 0x28
3 ReportCrash 0x000756f2 0x6d000 + 34546 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x28ee
4 ReportCrash 0x0006e474 0x6d000 + 5236

Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x368ad3a8 0x368ac000 + 5032 // kevent + 0x18
1 libdispatch.dylib 0x376daea4 0x376ce000 + 52900 // _dispatch_mgr_invoke + 0x2c4
2 libdispatch.dylib 0x376dabc2 0x376ce000 + 52162 // _dispatch_mgr_thread + 0x1e

Thread 2:
0 libsystem_kernel.dylib 0x368bdcd4 0x368ac000 + 72916 // __workq_kernreturn + 0x8
1 libsystem_c.dylib 0x331eff36 0x331e7000 + 36662 // _pthread_wqthread + 0x262
2 libsystem_c.dylib 0x331efcc8 0x331e7000 + 36040 // start_wqthread + 0x0

Thread 3:
0 libsystem_kernel.dylib 0x368bdcd4 0x368ac000 + 72916 // __workq_kernreturn + 0x8
1 libsystem_c.dylib 0x331eff36 0x331e7000 + 36662 // _pthread_wqthread + 0x262
2 libsystem_c.dylib 0x331efcc8 0x331e7000 + 36040 // start_wqthread + 0x0

Thread 4 Crashed:
0 CoreSymbolication 0x35d1638c 0x35cfe000 + 99212 // TExtendedMachOHeader&lt;SizeAndEndianness&lt;Point er32, LittleEndian&gt; &gt;::gc_support_flags() const + 0xfc
1 CoreSymbolication 0x35d14e54 0x35cfe000 + 93780 // CSCppSymbolOwnerData* create_symbol_owner_data_arch_specific&lt;SizeAndE ndianness&lt;Pointer32, LittleEndian&gt; &gt;(CSCppSymbolOwner*, CSCppDsymData*) + 0x10f8
2 CoreSymbolication 0x35d0fb3c 0x35cfe000 + 72508 // __ZL25create_symbol_owner_data2P16CSCppSymbolOwner P13CSCppDsymData + 0x84
3 CoreSymbolication 0x35d0f9e0 0x35cfe000 + 72160 // CSCppSymbolOwnerCache::create_symbol_owner_data(CS CppSymbolOwner*, CSCppDsymData*) + 0x11c
4 CoreSymbolication 0x35d0fef0 0x35cfe000 + 73456 // CSCppSymbolOwnerCache::data_for_symbol_owner(CSCpp SymbolOwner*) + 0x18
5 CoreSymbolication 0x35d0eb26 0x35cfe000 + 68390 // CSCppSymbolOwner::data() + 0xa
6 CoreSymbolication 0x35d0a088 0x35cfe000 + 49288 // CSSymbolOwnerForeachRegion + 0x14
7 ReportCrash 0x00073b3a 0x6d000 + 27450 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0xd36
8 CoreSymbolication 0x35d08138 0x35cfe000 + 41272 // CSSymbolicatorForeachSymbolOwnerAtTime + 0xc0
9 ReportCrash 0x000724f4 0x6d000 + 21748 // -[CrashReport _extractBinaryImageInfoUsingSymbolicator:] + 0x238
10 ReportCrash 0x0007358a 0x6d000 + 25994 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x786
11 ReportCrash 0x000760d6 0x6d000 + 37078 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x32d2
12 ReportCrash 0x000770a0 0x6d000 + 41120 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x429c
13 ReportCrash 0x00076d5a 0x6d000 + 40282 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x3f56
14 libsystem_kernel.dylib 0x368bb822 0x368ac000 + 63522 // mach_msg_server_once + 0x126
15 ReportCrash 0x000751c6 0x6d000 + 33222 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x23c2
16 libsystem_c.dylib 0x331f572e 0x331e7000 + 59182 // _pthread_start + 0x13a
17 libsystem_c.dylib 0x331f55e8 0x331e7000 + 58856 // thread_start + 0x0

Thread 5:
0 libsystem_kernel.dylib 0x368ad004 0x368ac000 + 4100 // mach_msg_trap + 0x14
1 libsystem_kernel.dylib 0x368ad1fa 0x368ac000 + 4602 // mach_msg + 0x32
2 libsystem_kernel.dylib 0x368bb7c2 0x368ac000 + 63426 // mach_msg_server_once + 0xc6
3 ReportCrash 0x000751c6 0x6d000 + 33222 // -[CrashReport initWithTask:exceptionType:exceptionCode:exception CodeCount:thread:threadStateFlavor:threadState:thr eadStateCount:writeToSyslog:] + 0x23c2
4 libsystem_c.dylib 0x331f572e 0x331e7000 + 59182 // _pthread_start + 0x13a
5 libsystem_c.dylib 0x331f55e8 0x331e7000 + 58856 // thread_start + 0x0

Thread 4 crashed with ARM Thread State:
r0: 0x00000000 r1: 0x00000000 r2: 0x00000000 r3: 0x00000000
r4: 0x35d21c1d r5: 0x0cac5488 r6: 0x0cac5444 r7: 0x00301cb0
r8: 0x00000018 r9: 0x00000000 r10: 0x0cac52b8 r11: 0x00000005
ip: 0xffffffed sp: 0x00301c78 lr: 0x368ace7d pc: 0x35d1638c
cpsr: 0x60000030

Binary Images:
0x6d000 - 0x7efff ReportCrash armv7 &lt;8e17e49f967c33108d90c86d3b32f531&gt; /System/Library/CoreServices/ReportCrash
0x88000 - 0x88fff +MobileSubstrate.dylib armv6 &lt;d8da1cc9b8ea37cfba03a60549cdac4c&gt; /Library/MobileSubstrate/MobileSubstrate.dylib
0xaf000 - 0xb0fff +SubstrateLoader.dylib armv6 &lt;825b732151e6379b9cbec6e597a986fa&gt; /Library/Frameworks/CydiaSubstrate.framework/Libraries/SubstrateLoader.dylib
0x2fe6c000 - 0x2fe8dfff dyld armv7 &lt;77eddfd654df393ba9c95ff01715fd08&gt; /usr/lib/dyld
0x30944000 - 0x30a89fff CoreGraphics armv7 &lt;903545b89a7f311d95100ac7d1d44709&gt; /System/Library/Frameworks/CoreGraphics.framework/CoreGraphics
0x31201000 - 0x3120dfff libCRFSuite.dylib armv7 &lt;bdb2b4d1a78c39c1ba60d791207aed2a&gt; /usr/lib/libCRFSuite.dylib
0x3120e000 - 0x3120efff liblangid.dylib armv7 &lt;644ff4bcfbf337b5b5859e3f0fc0a9a8&gt; /usr/lib/liblangid.dylib
0x312d8000 - 0x312f5fff libsystem_info.dylib armv7 &lt;50863bcbf478323e96a8e5b1a83ea6f9&gt; /usr/lib/system/libsystem_info.dylib
0x314f8000 - 0x31577fff libsqlite3.dylib armv7 &lt;bf01f5ed47b033d8bde30d735ff44416&gt; /usr/lib/libsqlite3.dylib
0x317bc000 - 0x317c5fff libMobileGestalt.dylib armv7 &lt;4a15e845dc6f3a4a980de66c1cc44c42&gt; /usr/lib/libMobileGestalt.dylib
0x317c6000 - 0x31817fff libstdc++.6.dylib armv7 &lt;c352af5a742e3c7a8d4d7e5f6f454793&gt; /usr/lib/libstdc++.6.dylib
0x3192d000 - 0x31931fff libcache.dylib armv7 &lt;98fa4b090d693115809eb6529e9beb8b&gt; /usr/lib/system/libcache.dylib
0x324b1000 - 0x3255efff libxml2.2.dylib armv7 &lt;58d47f064e0232119f4b838ad659f9c1&gt; /usr/lib/libxml2.2.dylib
0x3255f000 - 0x325a2fff libcommonCrypto.dylib armv7 &lt;1e32693f0983309b83784500fe1f9128&gt; /usr/lib/system/libcommonCrypto.dylib
0x32779000 - 0x3277cfff libsystem_network.dylib armv7 &lt;97feb1ab69973d1d84dbf3f4eb0dd0ad&gt; /usr/lib/system/libsystem_network.dylib
0x32834000 - 0x32835fff libdyld.dylib armv7 &lt;977b0ad6f2f433108b4a0324a57cd2ab&gt; /usr/lib/system/libdyld.dylib
0x3283f000 - 0x329bdfff Foundation armv7 &lt;c40ddb073142315bb4ebb214343d0b7f&gt; /System/Library/Frameworks/Foundation.framework/Foundation
0x32a07000 - 0x32a3efff Security armv7 &lt;eea56f71fde83c2981f9281dc7823725&gt; /System/Library/Frameworks/Security.framework/Security
0x330b5000 - 0x3317bfff libobjc.A.dylib armv7 &lt;90014d1bc583366d85622e43097df416&gt; /usr/lib/libobjc.A.dylib
0x33198000 - 0x331bbfff Bom armv7 &lt;c3435ecd2e5839f89de51edad0e1bb00&gt; /System/Library/PrivateFrameworks/Bom.framework/Bom
0x331e7000 - 0x33273fff libsystem_c.dylib armv7 &lt;50504d85a72b3857a1702a2084dca557&gt; /usr/lib/system/libsystem_c.dylib
0x333a2000 - 0x333eefff CoreTelephony armv7 &lt;b8f80d5d594c31d2b5d8fba9fdedb7e1&gt; /System/Library/Frameworks/CoreTelephony.framework/CoreTelephony
0x33507000 - 0x3350dfff liblockdown.dylib armv7 &lt;9e45ce468a6f31e5b8263f2c224aa800&gt; /usr/lib/liblockdown.dylib
0x3357e000 - 0x3357efff libgcc_s.1.dylib armv7 &lt;eb82984fa36c329387aa518aa5205f3d&gt; /usr/lib/libgcc_s.1.dylib
0x3357f000 - 0x33586fff libc++abi.dylib armv7 &lt;bab4dcbfc5943d3fbb637342d35e8045&gt; /usr/lib/libc++abi.dylib
0x337b1000 - 0x33888fff CFNetwork armv7 &lt;765a472c824830eea91b8f02d12867e4&gt; /System/Library/Frameworks/CFNetwork.framework/CFNetwork
0x338c1000 - 0x338c2fff libdnsinfo.dylib armv7 &lt;9aede8d6579d3430ac39ae5f95cce498&gt; /usr/lib/system/libdnsinfo.dylib
0x33d99000 - 0x33da5fff libz.1.dylib armv7 &lt;36ce86a3dc8c344596c8c325615f374b&gt; /usr/lib/libz.1.dylib
0x34a50000 - 0x34a51fff libsystem_sandbox.dylib armv7 &lt;6a8f2f33c7543808a0f4599101c3b61a&gt; /usr/lib/system/libsystem_sandbox.dylib
0x34a8f000 - 0x34a94fff libsystem_dnssd.dylib armv7 &lt;4729a67709ba39e98750fdd6b36a3317&gt; /usr/lib/system/libsystem_dnssd.dylib
0x34a9b000 - 0x34aa0fff libcopyfile.dylib armv7 &lt;52e874396c393ed29099789ce702cfe2&gt; /usr/lib/system/libcopyfile.dylib
0x34aa2000 - 0x34bebfff libicucore.A.dylib armv7 &lt;b70646b63f1f3b33896dd8cb91b8dab1&gt; /usr/lib/libicucore.A.dylib
0x34bec000 - 0x34c28fff AppSupport armv7 &lt;311eac85b2a433a884dacba77217b49e&gt; /System/Library/PrivateFrameworks/AppSupport.framework/AppSupport
0x34dcb000 - 0x34dcbfff libkeymgr.dylib armv7 &lt;ebd2dddf55d83cf48a18913968775960&gt; /usr/lib/system/libkeymgr.dylib
0x35ce5000 - 0x35ce6fff libsystem_blocks.dylib armv7 &lt;9fdc27af7350323bbc7d98e14e027907&gt; /usr/lib/system/libsystem_blocks.dylib
0x35ce7000 - 0x35ce9fff MobileInstallation armv7 &lt;215d93dbb0f63cbf828f9126eb7b5349&gt; /System/Library/PrivateFrameworks/MobileInstallation.framework/MobileInstallation
0x35cfe000 - 0x35d37fff CoreSymbolication armv7 &lt;49f7f06d807a3fc1835b57d1bad7ef05&gt; /System/Library/PrivateFrameworks/CoreSymbolication.framework/CoreSymbolication
0x360af000 - 0x360cefff libSystem.B.dylib armv7 &lt;0c55744b6f7335eebba4ca2c3d10b43c&gt; /usr/lib/libSystem.B.dylib
0x36236000 - 0x36237fff libremovefile.dylib armv7 &lt;402f8956975d3b6fb86ab9b31a43242c&gt; /usr/lib/system/libremovefile.dylib
0x36876000 - 0x368abfff SystemConfiguration armv7 &lt;4464a4e3bb3f32f7abaa35ebf31fda49&gt; /System/Library/Frameworks/SystemConfiguration.framework/SystemConfiguration
0x368ac000 - 0x368c2fff libsystem_kernel.dylib armv7 &lt;311f379a9fde305d80c1b22b7dd2e52a&gt; /usr/lib/system/libsystem_kernel.dylib
0x368cf000 - 0x368defff GenerationalStorage armv7 &lt;d84c3fd0e7bd36e78c256f2f4c5a4e91&gt; /System/Library/PrivateFrameworks/GenerationalStorage.framework/GenerationalStorage
0x36abe000 - 0x36ac8fff libbz2.1.0.dylib armv7 &lt;40e4045fb79e382b8833707746cf28b1&gt; /usr/lib/libbz2.1.0.dylib
0x36ace000 - 0x36b1efff Symbolication armv7 &lt;b3f6d3badacc3895baca220a1ba64079&gt; /System/Library/PrivateFrameworks/Symbolication.framework/Symbolication
0x36bc1000 - 0x36bc1fff libunwind.dylib armv7 &lt;e0a73a57795f3e1698a52ebe6fc07005&gt; /usr/lib/system/libunwind.dylib
0x36be7000 - 0x36bedfff MobileKeyBag armv7 &lt;e1f06241ef0e3f0aae00f15df572077e&gt; /System/Library/PrivateFrameworks/MobileKeyBag.framework/MobileKeyBag
0x36bee000 - 0x36d05fff CoreFoundation armv7 &lt;6d450fe923d7387f8b01845e0edd713d&gt; /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x36d7e000 - 0x36d84fff liblaunch.dylib armv7 &lt;aa2bcba6fc7a36a191958fef2e995475&gt; /usr/lib/system/liblaunch.dylib
0x36e2a000 - 0x36e2dfff libcompiler_rt.dylib armv7 &lt;b2c05d8601c13be884097192dca4e187&gt; /usr/lib/system/libcompiler_rt.dylib
0x36f3b000 - 0x36f79fff IOKit armv7 &lt;fcda71d29d6136dfbd84c1725f4998e5&gt; /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x36fff000 - 0x37002fff libmacho.dylib armv7 &lt;e52b77623bd031bc807e77029566c777&gt; /usr/lib/system/libmacho.dylib
0x37356000 - 0x3735bfff CrashReporterSupport armv7 &lt;dc11c5c2cbe73a6288a6094ebf5de673&gt; /System/Library/PrivateFrameworks/CrashReporterSupport.framework/CrashReporterSupport
0x373e3000 - 0x373f4fff libxpc.dylib armv7 &lt;ccf25b1e49ce3b2fa58d8c8546755505&gt; /usr/lib/system/libxpc.dylib
0x376ce000 - 0x376e4fff libdispatch.dylib armv7 &lt;9ecfaef4110a3bf9a92d12f0fe8d1d78&gt; /usr/lib/system/libdispatch.dylib
0x3793d000 - 0x37943fff libnotify.dylib armv7 &lt;9406297de3e43742887890662a87ab53&gt; /usr/lib/system/libnotify.dylib
</string>
<key>displayName</key>
<string>ReportCrash</string>
<key>name</key>
<string>ReportCrash</string>
<key>os_version</key>
<string>iPhone OS 5.1.1 (9B208)</string>
<key>system_ID</key>
<string></string>
<key>version</key>
<string>??? (???)</string>
<key>blame</key><array>
<array><string>/System/Library/CoreServices/ReportCrash</string><integer>61</integer></array>
</array>
</dict>
</plist>


I don't know what is causing this and it is quite obnoxious!
Someone please help!