我在运行服务器上的Java应用程序时遇到问题。
root@dobby [/opt]# jdk1.7.0_09/jre/bin/java -version Error occurred during initialization of VM Could not reserve enough space for object heap Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit. …但免费的RAM大约4GB（其中3GB被Linuxcaching使用）。 如果我将Xmx添加到命令中：
root@dobby [/opt]# jdk1.7.0_09/jre/bin/java -Xmx100m -version # # There is insufficient memory for the Java Runtime Environment to continue. # pthread_getattr_np # An error report file with more information is saved as: # /opt/hs_err_pid32241.log
这是怎么回事？
细节：
Java错误报告： http ： //pastebin.com/uaxdSyh3
的ulimit：
root@dobby [/home/bart]# ulimit -a -S core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 62763 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) 1048576 open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) 1048576 file locks (-x) unlimited root@dobby [/home/bart]# ulimit -a H core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 62763 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) 1048576 open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) 1048576 file locks (-x) unlimited
简单的答案将是你的limits.conf的一个问题。 你可以发布的输出
ulimit -a -S ulimit -a -H
好吧，我继续检查这个。 问题在于“-v”设置，虚拟内存设置，而不是“-m”设置。 这是在Fedora 17机器上，但这应该很重要：
$ ulimit -S -v unlimited $ java -version java version "1.7.0_09-icedtea" OpenJDK Runtime Environment (fedora-2.3.3.fc17.1-x86_64) OpenJDK 64-Bit Server VM (build 23.2-b09, mixed mode) $ ulimit -v 1048576 $ java -version Error occurred during initialization of VM Could not reserve enough space for object heap Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit.
去修理！ ;）