Game ended with bad state (exit code 134) (Nether)

Please force a crash by pressing F3 + C for 10 seconds while ingame and attach the crash report here.

ok i'll do it. edit : I can't stay in game more than 1 or 2 seconds (1.6)

I try to load the world with 1.5.2 (I'm can play few seconds, I'll see 2 portal 1 active other not)

I can put the world files (i've create a backup before some tries

Ok development Console :

Client> 2013-06-27 18:08:58 [CLIENT] [INFO] [CHAT] Vous ne pouvez dormir que durant la nuit
Client> Setting up custom skins
Client> 2013-06-27 18:15:05 [SERVER] [WARNING] Can't keep up! Did the system time change, or is the server overloaded?
Client> 2013-06-27 18:15:05 [SERVER] [INFO] Saving and pausing game...
Client> 2013-06-27 18:15:05 [SERVER] [INFO] Saving chunks for level 'XeL'/Overworld
Client> 2013-06-27 18:15:05 [SERVER] [INFO] Saving chunks for level 'XeL'/Nether
Client> 2013-06-27 18:15:05 [SERVER] [INFO] Saving chunks for level 'XeL'/The End
Client> 2013-06-27 18:16:25 [SERVER] [INFO] [...] a brûlé tout en combattant Ghast
Client> 2013-06-27 18:16:25 [CLIENT] [INFO] [CHAT] [...] a brûlé tout en combattant Ghast
Client> Setting up custom skins
Client> Setting up custom skins
Client> 2013-06-27 18:17:05 [SERVER] [INFO] Saving and pausing game...
Client> 2013-06-27 18:17:05 [SERVER] [INFO] Saving chunks for level 'XeL'/Overworld
Client> 2013-06-27 18:17:05 [SERVER] [INFO] Saving chunks for level 'XeL'/Nether
Client> 2013-06-27 18:17:05 [SERVER] [INFO] Saving chunks for level 'XeL'/The End
Client> #
Client> # A fatal error has been detected by the Java Runtime Environment:
Client> #
Client> #  SIGSEGV (0xb) at pc=0x00007f12ad99a536, pid=13727, tid=139718298515200
Client> #
Client> # JRE version: 6.0_27-b27
Client> # Java VM: OpenJDK 64-Bit Server VM (20.0-b12 mixed mode linux-amd64 compressed oops)
Client> # Derivative: IcedTea6 1.12.5
Client> # Distribution: Debian GNU/Linux 7.0 (wheezy), package 6b27-1.12.5-1
Client> # Problematic frame:
Client> # J  asv.a(DDD)Lasu;
Client> #
Client> # An error report file with more information is saved as:
Client> # /home/[...]/.minecraft/hs_err_pid13727.log
Client> #
Client> # If you would like to submit a bug report, please include
Client> # instructions how to reproduce the bug and visit:
Client> #   http://icedtea.classpath.org/bugzilla
Client> #
Game ended with bad state (exit code 134)
Deleting /home/[...]/.minecraft/versions/1.6/1.6-natives-24874518

minecraft/versions/1.6/1.6.jar net.minecraft.client.main.Main --username [...] --session token:[...] --version 1.6 --gameDir /home/[...]/.minecraft --assetsDir /home/[...]/.minecraft/assets
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- (We'll do this automatically later ;D) ----
Client> 2013-06-27 19:46:20 [CLIENT] [INFO] Setting user: [...]
Client> 2013-06-27 19:46:20 [CLIENT] [INFO] (Session ID is token:[...]:[...])
Client> 2013-06-27 19:46:21 [CLIENT] [INFO] LWJGL Version: 2.9.0
Client> 2013-06-27 19:46:21 [CLIENT] [INFO] Reloading ResourceManager: Default
Client> 
Client> Starting up SoundSystem...
Client> Initializing LWJGL OpenAL
Client>     (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)
Client> OpenAL initialized.
Client> 
Client> 2013-06-27 19:46:23 [CLIENT] [SEVERE] Realms: Invalid session id
Client> 2013-06-27 19:46:25 [SERVER] [INFO] Starting integrated minecraft server version 1.6
Client> 2013-06-27 19:46:25 [SERVER] [INFO] Generating keypair
Client> 2013-06-27 19:46:25 [SERVER] [INFO] Preparing start region for level 0
Client> loading single player
Client> 2013-06-27 19:46:26 [SERVER] [INFO] [...][/127.0.0.1:0] logged in with entity id 340 at (-38.5, 83.0, 59.0)
Client> 2013-06-27 19:46:26 [SERVER] [INFO] [...] joined the game
Client> Setting up custom skins
Client> #
Client> # A fatal error has been detected by the Java Runtime Environment:
Client> #
Client> #  SIGSEGV (0xb) at pc=0x00007f85545ef06a, pid=1955, tid=140210722428672
Client> #
Client> # JRE version: 6.0_27-b27
Client> # Java VM: OpenJDK 64-Bit Server VM (20.0-b12 mixed mode linux-amd64 compressed oops)
Client> # Derivative: IcedTea6 1.12.5
Client> # Distribution: Debian GNU/Linux 7.0 (wheezy), package 6b27-1.12.5-1
Client> # Problematic frame:
Client> # J  asv.a(DDD)Lasu;
Client> #
Client> # An error report file with more information is saved as:
Client> # /home/[...]/.minecraft/hs_err_pid1955.log
Client> #
Client> # If you would like to submit a bug report, please include
Client> # instructions how to reproduce the bug and visit:
Client> #   http://icedtea.classpath.org/bugzilla
Client> #
Game ended with bad state (exit code 134)
Deleting /home/[...]/.minecraft/versions/1.6/1.6-natives-316514722032813

Your Java version is way out of date, please update it. This is a technical support issue; this site is for bug reports only. For technical support please use the Mojang Support Center.

ok Thx
Launched with jre1.7.0_25 : Well Done. Thx a lot