The past few seeds all caused my MBPr (early 2012) to freeze at the black and white progress bar around 50-66%. After waiting each time about an hour, I forced it to reboot and it just went in, got the recovered from a crash screen, submitted logs to Apple and went on my merry way. Now last night it is refusing to get in. I tried holding Shift during boot, tried single user mode, but I really didn't know what I look for in why this is crashing/freezing. I see others having similar issues too but couldn't find any solutions so I apologise in advance if this is a duplicate.
Verbose boot log:
AirPort: RSN handshake completed on en0
Unexpected payload found for message 9, dataLen 0
Can't get kextd port.
Can't get kextd port.
Can't get kextd port.
VBoxFltDrv: version 4.3.28 r100309
Can't get kextd port.
VBoxFltDrv: version 4.3.28 r100309
Can't get kextd port.
Can't get kextd port.
Can't get kextd port.
Can't get kextd port.
Can't get kextd port.
Can't get kextd port.
AppleUSBMultitouchDriver::checkStatus - received Status Paclet, Payload 2: device was reinitialized
Can't get kextd port.
Can't get kextd port.
IOBluetoothUSBDFU::probe
IOBluetoothUSBDFU::probe ProductID - 0x8296 FirmwareVersion - 0x0151
Can't get kextd port.
Can't get kextd port.
Can't get kextd port.
**** [IOBluetoothHostControllerUSBTransport][start] -- completed -- result = TRUE -- 0x2008 ****
**** [BroadcomBluetoothHostControllerUSBTransport][start] -- Completed (matched on Device) -- 0x2000 ****
pci pause: SDXC
en1: promiscuous mode enable succeeded
en2: promiscuous mode enable succeeded
IO80211AWDPeerManager::setAwdlOperatingMode Setting the AWDL operation mode from SUSPENDED to AUTO
IO80211AWDPeerManager::setAwdlAutoMode Resuming AWDL
IO80211AWDPeerManager::setAwdlOperatingMode Setting the AWDL operation mode from AUTO to SUSPENDED
IO80211AWDPeerManager::setAwdlSuspendedMode() Suspending AWDL, enterQuietMode(true)
IO80211AWDPeerManager::setAwdlOperatingMode Setting the AWDL operation mode from SUSPENDED to AUTO
IO80211AWDPeerManager::setAwdlAutoMode Resuming AWDL
Can't get kextd port.