Crash report key

Question

My phone Iphone 4S periodically reloaded
Can any of you guys decipher the data log file and let me know what exactly happened?
Thanks!
crash report:
Incident Identifier: FB86F181-9B41-40D8-B79F-0658C3927401
CrashReporter Key:   0d64729ade31d4c0e5f5ad31b4fad175ea428b9e
Hardware Model:      iPhone4,1
Date/Time:       2013-11-08 13:01:11.847 +0400
OS Version:      iOS 6.1.2 (10B146)
panic(cpu 0 caller 0x879a5397): "i2c2::_checkBusStatus XIP is still set
(SDA is probably stuck low); last read status 11010100 xfer 00000008 fifo
00000000\n"
Debugger message: panic
OS version: 10B146
Kernel version: Darwin Kernel Version 13.0.0: Sun Dec 16 19:58:44 PST 2012;
root:xnu-2107.7.55~11/RELEASE_ARM_S5L8940X
iBoot version: iBoot-1537.9.55
secure boot?: YES
Paniclog version: 1
Kernel slide:     0x0000000007200000
Kernel text base: 0x87201000
Epoch Time:        sec       usec
  Boot    : 0x527b9f5f 0x00000000
  Sleep   : 0x527ca65b 0x00081238
  Wake    : 0x527ca783 0x00000008
  Calendar: 0x527ca843 0x000ee9d4
Task 0xc7a5cc20: 13021 pages, 114 threads: pid 0: kernel_task
thread 0xc7a6cff0
kernel backtrace: 81a23d78
  lr: 0x872874d1  fp: 0x81a23da8
  lr: 0x87287d6d  fp: 0x81a23dd4
  lr: 0x87217ca7  fp: 0x81a23dec
  lr: 0x879a5397  fp: 0x81a23e2c
  lr: 0x879a50a3  fp: 0x81a23e50
  lr: 0x879a4eb9  fp: 0x81a23e70
  lr: 0x875c3255  fp: 0x81a23e80
  lr: 0x875c3167  fp: 0x81a23e94
  lr: 0x8745692f  fp: 0x81a23ebc
  lr: 0x875c38e5  fp: 0x81a23ef4
  lr: 0x87ae80d5  fp: 0x81a23f08
  lr: 0x87aea631  fp: 0x81a23f5c
  lr: 0x87ae7991  fp: 0x81a23f68
  lr: 0x874564b1  fp: 0x81a23f78
  lr: 0x87455a9f  fp: 0x81a23f90
  lr: 0x87455b23  fp: 0x81a23fa8
  lr: 0x8728555c  fp: 0x00000000
Task 0xc7a5c968: 189 pages, 3 threads: pid 1: launchd
Task 0xc7a5be88: 662 pages, 9 threads: pid 13: UserEventAgent
Task 0xc7a5c3f8: 442 pages, 5 threads: pid 14: wifid
Task 0xc7a5bbd0: 355 pages, 3 threads: pid 16: timed
Task 0xc7a5ab80: 257 pages, 2 threads: pid 22: iaptransportd
Task 0xc7a5a0a0: 2173 pages, 14 threads: pid 26: backboardd
Task 0xc7a59308: 352 pages, 3 threads: pid 31: mDNSResponder
Task 0xc7a58570: 176 pages, 4 threads: pid 36: syslogd
Task 0xc7fbbc20: 1549 pages, 22 threads: pid 39: mediaserverd
Task 0xc7fbb968: 242 pages, 2 threads: pid 40: powerd
Task 0xc7fbb3f8: 603 pages, 2 threads: pid 42: fairplayd.N94
Task 0xc7fbabd0: 268 pages, 2 threads: pid 45: lockdownd
Task 0xc7fba918: 1793 pages, 16 threads: pid 46: locationd
Task 0xc7fba3a8: 579 pages, 10 threads: pid 48: configd
Task 0xc7fba0f0: 891 pages, 4 threads: pid 49: imagent
Task 0xc7fb9b80: 621 pages, 3 threads: pid 51: kbd
Task 0xc7fb9610: 360 pages, 2 threads: pid 53: BTServer
Task 0xc7fb9358: 297 pages, 2 thre

Answer 1

Please, describe the circumstances under which Mail crashes.
Mail appears to be crashing while rendering a message with HTML content, so holding the Shift down key while launching Mail should certainly prevent it from crashing upon start up, but of course that won’t prevent Mail from crashing again as soon as you tell it to display the message that’s causing it to crash...
Does Mail crash with a particular message only or with any message that has HTML content? If it’s one particular message only, the “solution” is to get rid of it, but try clearing the Mail cache first, in case it has a bearing on this:
1. Quit Mail if it’s running.
2. In the Finder, go to ~/Library/Caches/.
3. Locate the Mail cache folder (not to be confused with the ~/Library/Mail folder where all your mail is stored) and move it to the Desktop (to be deleted after opening Mail and checking that all your mail is there, i.e. after making sure that you didn’t remove the ~/Library/Mail folder by mistake).
Note: For those not familiarized with the ~/ notation, it refers to the user’s home folder. That is, ~/Library is the Library folder within the user’s home folder, i.e. /Users/username/Library.