rob@alphard ~/bin/jar/minecraft/tmp
$ optirun java -Xmx512M -Xms512M -jar Minecraft.jar
Bootstrap (v5)
Current time is Mar 13, 2014 6:41:55 PM
System.getProperty('os.name') == 'Linux'
System.getProperty('os.version') == '3.2.0-4-amd64'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.7.0_45'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '64'

Looking for update
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma
Got reply in: 409ms
No update found.
Reversing LZMA on /home/rob/.minecraft/launcher.pack.lzma to /home/user/.minecraft/launcher.pack
Unpacking /home/rob/.minecraft/launcher.pack to /home/user/.minecraft/launcher.jar
Cleaning up /home/rob/.minecraft/launcher.pack
Starting launcher.
[18:42:00 INFO]: JFX has been detected & successfully loaded
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x0000000000000000, pid=17531, tid=139995003184896
#
# JRE version: Java(TM) SE Runtime Environment (7.0_45-b18) (build 1.7.0_45-b18)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (24.45-b08 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# C  0x0000000000000000
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/rob/bin/jar/minecraft/tmp/hs_err_pid17531.log
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

rob@alphard ~/bin/jar/minecraft/tmp
✗$ java -Xmx512M -Xms512M -jar Minecraft.jar
Bootstrap (v5)
Current time is Mar 13, 2014 6:42:04 PM
System.getProperty('os.name') == 'Linux'
System.getProperty('os.version') == '3.2.0-4-amd64'
System.getProperty('os.arch') == 'amd64'
System.getProperty('java.version') == '1.7.0_45'
System.getProperty('java.vendor') == 'Oracle Corporation'
System.getProperty('sun.arch.data.model') == '64'

Looking for update
Downloading: https://s3.amazonaws.com/Minecraft.Download/launcher/launcher.pack.lzma
Got reply in: 440ms
No update found.
Reversing LZMA on /home/rob/.minecraft/launcher.pack.lzma to /home/user/.minecraft/launcher.pack
Unpacking /home/rob/.minecraft/launcher.pack to /home/user/.minecraft/launcher.jar
Cleaning up /home/rob/.minecraft/launcher.pack
Starting launcher.
[18:42:09 INFO]: JFX has been detected & successfully loaded
[18:42:09 INFO]: Refreshing local version list...
[18:42:09 INFO]: Minecraft Launcher 1.3.11 (through bootstrap 5) started on linux...
[18:42:09 INFO]: Current time is Mar 13, 2014 6:42:09 PM
[18:42:09 INFO]: System.getProperty('os.name') == 'Linux'
[18:42:09 INFO]: System.getProperty('os.version') == '3.2.0-4-amd64'
[18:42:09 INFO]: System.getProperty('os.arch') == 'amd64'
[18:42:09 INFO]: System.getProperty('java.version') == '1.7.0_45'
[18:42:09 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[18:42:09 INFO]: System.getProperty('sun.arch.data.model') == '64'
[18:42:09 INFO]: Refreshing remote version list...
[18:42:10 INFO]: Refresh complete.
[18:42:10 INFO]: Loaded 2 profile(s); selected '1.7.5'
[18:42:10 INFO]: Refreshing auth...
[18:42:10 INFO]: Logging in with access token

rob@alphard ~/bin/jar/minecraft/tmp
$ host s3.amazonaws.com
s3.amazonaws.com is an alias for s3.a-geo.amazonaws.com.
s3.a-geo.amazonaws.com is an alias for s3-1.amazonaws.com.
s3-1.amazonaws.com has address 176.32.101.82