multiplayer keeps crashing

Completely ignored arguments: [--nativeLauncherVersion, 301]
[15:48:27] [Client thread/INFO]: Setting user: Kowatch1997
[15:48:27] [Client thread/INFO]: (Session ID is <censored>)
[15:48:28] [Client thread/INFO]: LWJGL Version: 2.9.4
[15:48:29] [Client thread/INFO]: Reloading ResourceManager: Default
[15:48:29] [Sound Library Loader/INFO]: Starting up SoundSystem...
[15:48:29] [Thread-5/INFO]: Initializing LWJGL OpenAL
[15:48:29] [Thread-5/INFO]: (The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)
[15:48:30] [Thread-5/INFO]: OpenAL initialized.
[15:48:30] [Sound Library Loader/INFO]: Sound engine started
[15:48:31] [Client thread/INFO]: Created: 1024x512 textures-atlas
[15:48:39] [Client thread/INFO]: Connecting to Cattanach.net, 25565
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1. A fatal error has been detected by the Java Runtime Environment:
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2. EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ff919c9125c, pid=14544, tid=2316
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3. JRE version: Java(TM) SE Runtime Environment (8.0_25-b18) (build 1.8.0_25-b18)
4. Java VM: Java HotSpot(TM) 64-Bit Server VM (25.25-b02 mixed mode windows-amd64 compressed oops)
5. Problematic frame:
6. C [ig8icd64.dll+0x63125c]
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7. Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
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8. An error report file with more information is saved as:
9. C:\Users\jonat_000\AppData\Roaming\.minecraft\hs_err_pid14544.log
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10. If you would like to submit a bug report, please visit:
11. http://bugreport.sun.com/bugreport/crash.jsp
12. The crash happened outside the Java Virtual Machine in native code.
13. See problematic frame for where to report the bug.
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    AL lib: (EE) alc_cleanup: 1 device not closed
    Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release