After updating to Android Studio 2 when I try to run my application and choose an emulator, I wait for the emulator to start and it suddenly gets killed. I can see emulator
I had same issue, the problem was there is no enough space in my disk drive.. you can see details about you specific situation in layer 'Event Log' this layer regularly is in the bottom on Android studio, it was my output Log:
"02:45 PM Emulator: emulator: ERROR: Not enough space to create userdata partition. Available: 3310.363281 MB at /home/user/.android/avd/my_Nexus_5X_API_27.avd, need 7372.800000 MB."
I had just 7 GB free, so just delete some GB's in my D.D. and it's working fine.