Help me decipher my iPhone crash logs

[rbrian]

My iPhone 4s crashes several times a week - my 3GS crashed twice in the nearly 18 months that I owned it. I found the logs, but I have no idea what they mean. Here's the latest:

Incident Identifier: E4416D60-5800-479F-8FA3-11DD588DD0A2
CrashReporter Key: 9e727e59fd5f381164d7e0d5d278940707e59b1b
Hardware Model: iPhone4,1
Date/Time: 2012-07-23 17:29:43.131 +0100
OS Version: iPhone OS 5.1.1 (9B206)

panic(cpu 1 caller 0x8007e9ec): kernel abort type 4: fault_type=0x3, fault_addr=0x1e
r0: 0x00000000 r1: 0x9d2bba60 r2: 0x802f9120 r3: 0x00000006
r4: 0x80306430 r5: 0x9d2bba60 r6: 0x00000004 r7: 0xd26cbda4
r8: 0x00000001 r9: 0xffffffff r10: 0xc027b564 r11: 0x00000000
12: 0x412f6ec4 sp: 0xd26cbd50 lr: 0x8001aa05 pc: 0x8002f47c
cpsr: 0x00000033 fsr: 0x00000805 far: 0x0000001e

Debugger message: panic
OS version: 9B206
Kernel version: Darwin Kernel Version 11.0.0: Sun Apr 8 21:51:47 PDT 2012; root:xnu-1878.11.10~1/RELEASE_ARM_S5L8940X
iBoot version: iBoot-1219.62.15
secure boot?: YES
Paniclog version: 1
Epoch Time: sec usec
Boot : 0x50084a9b 0x00000000
Sleep : 0x500d7bd3 0x0006f625
Wake : 0x500d7bd5 0x00000009
Calendar: 0x500d7bd5 0x00001810

Task 0xc0860d20: 16462 pages, 160 threads: pid 0: kernel_task
thread 0xc13ece50
kernel backtrace: d26cbab4
lr: 0x8007bd2b fp: 0xd26cbae0
lr: 0x8007c32f fp: 0xd26cbb0c
lr: 0x800165f7 fp: 0xd26cbb2c
lr: 0x8007e9ec fp: 0xd26cbbe8
lr: 0x800795bc fp: 0xd26cbda4
lr: 0x8001aa05 fp: 0xd26cbdb8
lr: 0x80203537 fp: 0xd26cbdc4
lr: 0x8020920f fp: 0xd26cbdd0
lr: 0x80209325 fp: 0xd26cbde0
lr: 0x80209377 fp: 0xd26cbde8
lr: 0x8020b059 fp: 0xd26cbe10
lr: 0x8020ec0f fp: 0xd26cbe40
lr: 0x80530c75 fp: 0xd26cbe5c
lr: 0x80531bd5 fp: 0xd26cbeb8
lr: 0x805325fd fp: 0xd26cbec8
lr: 0x8095499d fp: 0xd26cbefc
lr: 0x805313db fp: 0xd26cbf24
lr: 0x8021dad9 fp: 0xd26cbf50
lr: 0x80531461 fp: 0xd26cbf78
lr: 0x8002c4d7 fp: 0xd26cbfa8
lr: 0x8007a3dc fp: 0x00000000

Task 0xc0860ac0: 147 pages, 3 threads: pid 1: launchd
Task 0xc0860600: 474 pages, 8 threads: pid 12: UserEventAgent
Task 0xc0860140: 258 pages, 4 threads: pid 13: notifyd
Task 0xc08603a0: 544 pages, 9 threads: pid 14: configd
Task 0xc085fee0: 6825 pages, 27 threads: pid 15: SpringBoard
Task 0xc085fc80: 116 pages, 4 threads: pid 16: syslogd
Task 0xc085fa20: 1261 pages, 14 threads: pid 17: CommCenter
Task 0xc085ee40: 204 pages, 2 threads: pid 22: powerd
Task 0xc085ebe0: 472 pages, 4 threads: pid 23: lockdownd
Task 0xc085e000: 1468 pages, 14 threads: pid 28: locationd
Task 0xc0fd1d20: 418 pages, 4 threads: pid 29: wifid
Task 0xc0fcf980: 2301 pages, 20 threads: pid 44: mediaserverd
Task 0xc0fcf72