Q: Mac book Pro frequently crashing and rebooting after os update.

After the last OS update, my mac book pro constantly crashing. It is starting with low resolution screen. Following is one crash report:

Anonymous UUID:       1AF83906-A3F4-A67D-EE9A-25CF03C2CA11

Sun Sep  6 17:35:08 2015

*** Panic Report ***

panic(cpu 0 caller 0xffffff800e9c127e): "launchd died\nState at Last Exception:\n\n"@/SourceCache/xnu/xnu-2782.40.9/bsd/kern/kern_exit.c:363

uuid info:

0x7fff6ac5c000 uuid = <b1b370a5-479f-3533-8ad7-97b687d4f989>

0x109bb9000 uuid = <c0446878-e8d0-3461-a226-91ff1c2b2da6>

0x109c07000 uuid = <4396b358-725e-3ec0-bcbb-e4bf75fe1fb0>

RAX: 0x0000000002000001, RBX: 0x0000000000000007, RCX: 0x0000000109d597b8, RDX: 0x0000000000000000

RSP: 0x0000000109d597b8, RBP: 0x0000000109d59860, RSI: 0x0000000109d59610, RDI: 0x0000000000000001

R8:  0x0000000000000000, R9:  0x0000000109bf89f0, R10: 0x00007fff90a0fb02, R11: 0x0000000000000206

R12: 0x00007febd3409f50, R13: 0x000000010aa07bc0, R14: 0x0000000109d59ca0, R15: 0x0000000000000000

RFL: 0x0000000000000206, RIP: 0x00007fff90a0d95a, CS:  0x0000000000000007, SS:  0x0000000000000023

Thread  0xffffff801a96fe28

  0x00007fff9376edab

  0x00007fff9376eec8

  0x00007fff937683b4

  0x00007fff9258ba6c

  0x0000000109be7907

  0x00007fff93645c13

  0x00007fff9364888f

  0x00007fff93656fe4

  0x00007fff87a51a9d

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801a9062e0

  0x00007fff93648a6a

  0x0000000000000000

Thread  0xffffff801ab19108

  0x0000000109bd0c91

  0x00007fff93645c13

  0x00007fff93649365

  0x00007fff9364aecc

  0x00007fff936486b7

  0x00007fff93656fe4

  0x00007fff87a51a9d

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801ab18798

  0x00007fff936563ad

  0x0000000000000000

Thread  0xffffff801bd85108

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801b3c3a78

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801bd8e2e0

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801b15f5c0

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801aafbc50

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801bc70970

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801bd47108

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801bd834b8

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801bb5e970

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801bc2e000

  0x00007fff87a4f3dd

  0x0000000000000000

Thread  0xffffff801bd47a78

  0x00007fff90bb1f1a

  0x0000000000000000

  0x00007fff9364aecc

  0x00007fff936486b7

  0x00007fff93648453

  0x00007fff87a5205a

  0x00007fff87a51fd7

  0x00007fff87a4f3ed

  0x0000000000000000

Mac OS version: 14F27

Kernel version: Darwin Kernel Version 14.5.0: Wed Jul 29 02:26:53 PDT 2015; root:xnu-2782.40.9~1/RELEASE_X86_64

Kernel UUID: 58F06365-45C7-3CA7-B80D-173AFD1A03C4

System model name: MacBookPro8,2 (Mac-94245A3940C91C80)

Unable to gather system configuration information.Model: MacBookPro8,2, BootROM MBP81.0047.B2A, 4 processors, Intel Core i7, 2 GHz, 4 GB, SMC 1.69f4

Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In

Graphics: AMD Radeon HD 6490M, AMD Radeon HD 6490M, PCIe, 256 MB

Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353737334448302D4348392020

Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80CE, 0x4D34373142353737334448302D4348392020

AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xD6), Broadcom BCM43xx 1.0 (5.106.98.100.24)

Bluetooth: Version 4.3.6f3 16238, 3 services, 18 devices, 1 incoming serial ports

Network Service: AirPort, AirPort, en1

Serial ATA Device: TOSHIBA MK5065GSXF, 500.11 GB

Serial ATA Device: MATSHITADVD-R   UJ-898

USB Device: FaceTime HD Camera (Built-in)

USB Device: Hub

USB Device: BRCM2070 Hub

USB Device: Bluetooth USB Host Controller

USB Device: Apple Internal Keyboard / Trackpad

USB Device: Hub

USB Device: IR Receiver

Thunderbolt Bus: MacBook Pro, Apple Inc., 22.1

Please help.