我正在尝试使用命令：java -version启动一个新的jvm，但它报告错误：
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (malloc) failed to allocate 160088 bytes for AllocateHeap
# An error report file with more information is saved as:
# /users/xxx/xxx/hs_err_pid12365.log
然后我检查了文件/users/xxx/xxx/hs_err_pid12365.log，我发现它说：
# Native memory allocation (malloc) failed to allocate 295856 bytes for Chunk::new
堆栈信息还证明系统无法分配本机内存：
V [libjvm.so+0xad3525] VMError::report_and_die()+0x2e5
V [libjvm.so+0x4e0457] report_vm_out_of_memory(char const*, int, unsigned long, VMErrorType, char const*)+0x67
V [libjvm.so+0xa9775f] universe_init()+0x35f
V [libjvm.so+0x631fd0] init_globals()+0x50
V [libjvm.so+0xa79b69] Threads::create_vm(JavaVMInitArgs*, bool*)+0x409
V [libjvm.so+0x6d7b4f] JNI_CreateJavaVM+0x4f
C [libjli.so+0x7ee4] JavaMain+0x84
C [libpthread.so.0+0x68ca] start_thread+0xba
但是当我使用free -m检查可用内存大小时。我发现系统仍有足够的可用内存：
scada1:/users/xxx/xxx> free -m
total used free shared buffers cached
Mem: 7983 4867 3116 0 110 1031
-/+ buffers/cache: 3726 4257
Swap: 15257 71 15186
那么为什么系统在有足够的可用内存时无法分配内存
- - - - 系统信息 - - - - -
操作系统信息是：
scada1:/users/ems> uname -a
Linux scada1 2.6.32-5-linx-amd64 #1 SMP Mon May 18 04:02:09 UTC 2015 x86_64 GNU/Linux
java版本是：
jdk1.8.0_201
------- hs_err_pidxxx.log内容---------
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (malloc) failed to allocate 160088 bytes for AllocateHeap
# Possible reasons:
# The system is out of physical RAM or swap space
# The process is running with CompressedOops enabled, and the Java Heap may be blocking the growth of the native heap
# Possible solutions:
# Reduce memory load on the system
# Increase physical memory or swap space
# Check if swap backing store is full
# Decrease Java heap size (-Xmx/-Xms)
# Decrease number of Java threads
# Decrease Java thread stack sizes (-Xss)
# Set larger code cache with -XX:ReservedCodeCacheSize=
# JVM is running with Unscaled Compressed Oops mode in which the Java heap is
# placed in the first 4GB address space. The Java Heap base address is the
# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress
# to set the Java Heap base and to place the Java Heap above 4GB virtual address.
# This output file may be truncated or incomplete.
#
# Out of Memory Error (allocation.inline.hpp:61), pid=1348, tid=0x00007f7f87350700
#
# JRE version: (8.0_201-b09) (build )
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.201-b09 mixed mode linux-amd64 compressed oops)
# Core dump written. Default location: /users/ems/zoutairan/core or core.1348 (max size 521000 kB). To ensure a full core dump, try "ulimit -c unlimited" before starting Java again
#
--------------- T H R E A D ---------------
Current thread (0x000000000107e000): JavaThread "Unknown thread" [_thread_in_vm, id=1349, stack(0x00007f7f87250000,0x00007f7f87351000)]
Stack: [0x00007f7f87250000,0x00007f7f87351000], sp=0x00007f7f8734f910, free space=1022k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0xad3525] VMError::report_and_die()+0x2e5
V [libjvm.so+0x4e0457] report_vm_out_of_memory(char const*, int, unsigned long, VMErrorType, char const*)+0x67
V [libjvm.so+0xa9775f] universe_init()+0x35f
V [libjvm.so+0x631fd0] init_globals()+0x50
V [libjvm.so+0xa79b69] Threads::create_vm(JavaVMInitArgs*, bool*)+0x409
V [libjvm.so+0x6d7b4f] JNI_CreateJavaVM+0x4f
C [libjli.so+0x7ee4] JavaMain+0x84
C [libpthread.so.0+0x68ca] start_thread+0xba
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
Other Threads:
=>0x000000000107e000 (exited) JavaThread "Unknown thread" [_thread_in_vm, id=1349, stack(0x00007f7f87250000,0x00007f7f87351000)]
VM state:not at safepoint (not fully initialized)
VM Mutex/Monitor currently owned by a thread: None
heap address: 0x0000000083400000, size: 1996 MB, Compressed Oops mode: 32-bit
Narrow klass base: 0x0000000000000000, Narrow klass shift: 3
Compressed class space size: 1073741824 Address: 0x0000000100000000
GC Heap History (0 events):
No events
Deoptimization events (0 events):
No events
Classes redefined (0 events):
No events
Internal exceptions (0 events):
No events
Events (0 events):
No events
Dynamic libraries:
00400000-00401000 r-xp 00000000 ca:06 16598510 /usr/java/jdk1.8.0_201/bin/java
00600000-00601000 r--p 00000000 ca:06 16598510 /usr/java/jdk1.8.0_201/bin/java
00601000-00602000 rw-p 00001000 ca:06 16598510 /usr/java/jdk1.8.0_201/bin/java
01060000-010b8000 rw-p 00000000 00:00 0 [heap]
83400000-88800000 rw-p 00000000 00:00 0
88800000-d6700000 ---p 00000000 00:00 0
d6700000-d9100000 rw-p 00000000 00:00 0
d9100000-140000000 ---p 00000000 00:00 0
7f7f6fc38000-7f7f70438000 ---p 00000000 00:00 0
7f7f70438000-7f7f7467e000 rw-p 00000000 00:00 0
7f7f7467e000-7f7f7467f000 ---p 00000000 00:00 0
7f7f7467f000-7f7f7477f000 rw-p 00000000 00:00 0
7f7f7477f000-7f7f74780000 ---p 00000000 00:00 0
7f7f74780000-7f7f74880000 rw-p 00000000 00:00 0
7f7f74880000-7f7f74881000 ---p 00000000 00:00 0
7f7f74881000-7f7f74981000 rw-p 00000000 00:00 0
7f7f74981000-7f7f74982000 ---p 00000000 00:00 0
7f7f74982000-7f7f74aac000 rw-p 00000000 00:00 0
7f7f74aac000-7f7f74d1c000 ---p 00000000 00:00 0
7f7f74d1c000-7f7f74d46000 rw-p 00000000 00:00 0
7f7f74d46000-7f7f74fb5000 ---p 00000000 00:00 0
7f7f74fb5000-7f7f74fcb000 rw-p 00000000 00:00 0
7f7f74fcb000-7f7f75102000 ---p 00000000 00:00 0
7f7f75102000-7f7f7510d000 rw-p 00000000 00:00 0
7f7f7510d000-7f7f754c3000 ---p 00000000 00:00 0
7f7f754c3000-7f7f75733000 rwxp 00000000 00:00 0
7f7f75733000-7f7f844c3000 ---p 00000000 00:00 0
7f7f844c3000-7f7f844de000 r-xp 00000000 ca:06 18456592 /usr/java/jdk1.8.0_201/jre/lib/amd64/libzip.so
7f7f844de000-7f7f846dd000 ---p 0001b000 ca:06 18456592 /usr/java/jdk1.8.0_201/jre/lib/amd64/libzip.so
7f7f846dd000-7f7f846de000 r--p 0001a000 ca:06 18456592 /usr/java/jdk1.8.0_201/jre/lib/amd64/libzip.so
7f7f846de000-7f7f846df000 rw-p 0001b000 ca:06 18456592 /usr/java/jdk1.8.0_201/jre/lib/amd64/libzip.so
7f7f846df000-7f7f846eb000 r-xp 00000000 ca:06 14442521 /lib/libnss_files-2.11.3.so
7f7f846eb000-7f7f848ea000 ---p 0000c000 ca:06 14442521 /lib/libnss_files-2.11.3.so
7f7f848ea000-7f7f848eb000 r--p 0000b000 ca:06 14442521 /lib/libnss_files-2.11.3.so
7f7f848eb000-7f7f848ec000 rw-p 0000c000 ca:06 14442521 /lib/libnss_files-2.11.3.so
7f7f848ec000-7f7f848f6000 r-xp 00000000 ca:06 14442519 /lib/libnss_nis-2.11.3.so
7f7f848f6000-7f7f84af5000 ---p 0000a000 ca:06 14442519 /lib/libnss_nis-2.11.3.so
7f7f84af5000-7f7f84af6000 r--p 00009000 ca:06 14442519 /lib/libnss_nis-2.11.3.so
7f7f84af6000-7f7f84af7000 rw-p 0000a000 ca:06 14442519 /lib/libnss_nis-2.11.3.so
7f7f84af7000-7f7f84b0c000 r-xp 00000000 ca:06 14442515 /lib/libnsl-2.11.3.so
7f7f84b0c000-7f7f84d0b000 ---p 00015000 ca:06 14442515 /lib/libnsl-2.11.3.so
7f7f84d0b000-7f7f84d0c000 r--p 00014000 ca:06 14442515 /lib/libnsl-2.11.3.so
7f7f84d0c000-7f7f84d0d000 rw-p 00015000 ca:06 14442515 /lib/libnsl-2.11.3.so
7f7f84d0d000-7f7f84d0f000 rw-p 00000000 00:00 0
7f7f84d0f000-7f7f84d16000 r-xp 00000000 ca:06 14442505 /lib/libnss_compat-2.11.3.so
7f7f84d16000-7f7f84f15000 ---p 00007000 ca:06 14442505 /lib/libnss_compat-2.11.3.so
7f7f84f15000-7f7f84f16000 r--p 00006000 ca:06 14442505 /lib/libnss_compat-2.11.3.so
7f7f84f16000-7f7f84f17000 rw-p 00007000 ca:06 14442505 /lib/libnss_compat-2.11.3.so
7f7f84f17000-7f7f84f43000 r-xp 00000000 ca:06 18456586 /usr/java/jdk1.8.0_201/jre/lib/amd64/libjava.so
7f7f84f43000-7f7f85143000 ---p 0002c000 ca:06 18456586 /usr/java/jdk1.8.0_201/jre/lib/amd64/libjava.so
7f7f85143000-7f7f85144000 r--p 0002c000 ca:06 18456586 /usr/java/jdk1.8.0_201/jre/lib/amd64/libjava.so
7f7f85144000-7f7f85146000 rw-p 0002d000 ca:06 18456586 /usr/java/jdk1.8.0_201/jre/lib/amd64/libjava.so
7f7f85146000-7f7f85153000 r-xp 00000000 ca:06 18456591 /usr/java/jdk1.8.0_201/jre/lib/amd64/libverify.so
7f7f85153000-7f7f85352000 ---p 0000d000 ca:06 18456591 /usr/java/jdk1.8.0_201/jre/lib/amd64/libverify.so
7f7f85352000-7f7f85354000 r--p 0000c000 ca:06 18456591 /usr/java/jdk1.8.0_201/jre/lib/amd64/libverify.so
7f7f85354000-7f7f85355000 rw-p 0000e000 ca:06 18456591 /usr/java/jdk1.8.0_201/jre/lib/amd64/libverify.so
7f7f85355000-7f7f8535c000 r-xp 00000000 ca:06 14442518 /lib/librt-2.11.3.so
7f7f8535c000-7f7f8555b000 ---p 00007000 ca:06 14442518 /lib/librt-2.11.3.so
7f7f8555b000-7f7f8555c000 r--p 00006000 ca:06 14442518 /lib/librt-2.11.3.so
7f7f8555c000-7f7f8555d000 rw-p 00007000 ca:06 14442518 /lib/librt-2.11.3.so
7f7f8555d000-7f7f855dd000 r-xp 00000000 ca:06 14442509 /lib/libm-2.11.3.so
7f7f855dd000-7f7f857dd000 ---p 00080000 ca:06 14442509 /lib/libm-2.11.3.so
7f7f857dd000-7f7f857de000 r--p 00080000 ca:06 14442509 /lib/libm-2.11.3.so
7f7f857de000-7f7f857df000 rw-p 00081000 ca:06 14442509 /lib/libm-2.11.3.so
7f7f857df000-7f7f864c7000 r-xp 00000000 ca:06 16728601 /usr/java/jdk1.8.0_201/jre/lib/amd64/server/libjvm.so
7f7f864c7000-7f7f866c6000 ---p 00ce8000 ca:06 16728601 /usr/java/jdk1.8.0_201/jre/lib/amd64/server/libjvm.so
7f7f866c6000-7f7f8675c000 r--p 00ce7000 ca:06 16728601 /usr/java/jdk1.8.0_201/jre/lib/amd64/server/libjvm.so
7f7f8675c000-7f7f8678d000 rw-p 00d7d000 ca:06 16728601 /usr/java/jdk1.8.0_201/jre/lib/amd64/server/libjvm.so
7f7f8678d000-7f7f867c8000 rw-p 00000000 00:00 0
7f7f867c8000-7f7f86921000 r-xp 00000000 ca:06 14442502 /lib/libc-2.11.3.so
7f7f86921000-7f7f86b20000 ---p 00159000 ca:06 14442502 /lib/libc-2.11.3.so
7f7f86b20000-7f7f86b24000 r--p 00158000 ca:06 14442502 /lib/libc-2.11.3.so
7f7f86b24000-7f7f86b25000 rw-p 0015c000 ca:06 14442502 /lib/libc-2.11.3.so
7f7f86b25000-7f7f86b2a000 rw-p 00000000 00:00 0
7f7f86b2a000-7f7f86b2c000 r-xp 00000000 ca:06 14442520 /lib/libdl-2.11.3.so
7f7f86b2c000-7f7f86d2c000 ---p 00002000 ca:06 14442520 /lib/libdl-2.11.3.so
7f7f86d2c000-7f7f86d2d000 r--p 00002000 ca:06 14442520 /lib/libdl-2.11.3.so
7f7f86d2d000-7f7f86d2e000 rw-p 00003000 ca:06 14442520 /lib/libdl-2.11.3.so
7f7f86d2e000-7f7f86d45000 r-xp 00000000 ca:06 16704901 /usr/java/jdk1.8.0_201/lib/amd64/jli/libjli.so
7f7f86d45000-7f7f86f44000 ---p 00017000 ca:06 16704901 /usr/java/jdk1.8.0_201/lib/amd64/jli/libjli.so
7f7f86f44000-7f7f86f45000 r--p 00016000 ca:06 16704901 /usr/java/jdk1.8.0_201/lib/amd64/jli/libjli.so
7f7f86f45000-7f7f86f46000 rw-p 00017000 ca:06 16704901 /usr/java/jdk1.8.0_201/lib/amd64/jli/libjli.so
7f7f86f46000-7f7f86f5d000 r-xp 00000000 ca:06 14442508 /lib/libpthread-2.11.3.so
7f7f86f5d000-7f7f8715c000 ---p 00017000 ca:06 14442508 /lib/libpthread-2.11.3.so
7f7f8715c000-7f7f8715d000 r--p 00016000 ca:06 14442508 /lib/libpthread-2.11.3.so
7f7f8715d000-7f7f8715e000 rw-p 00017000 ca:06 14442508 /lib/libpthread-2.11.3.so
7f7f8715e000-7f7f87162000 rw-p 00000000 00:00 0
7f7f87162000-7f7f87180000 r-xp 00000000 ca:06 14442498 /lib/ld-2.11.3.so
7f7f87229000-7f7f87250000 rw-p 00000000 00:00 0
7f7f87250000-7f7f87253000 ---p 00000000 00:00 0
7f7f87253000-7f7f87355000 rw-p 00000000 00:00 0
7f7f87372000-7f7f8737a000 rw-s 00000000 ca:06 8848000 /tmp/hsperfdata_ems/1348
7f7f8737a000-7f7f8737b000 rw-p 00000000 00:00 0
7f7f8737b000-7f7f8737c000 r--p 00000000 00:00 0
7f7f8737c000-7f7f8737f000 rw-p 00000000 00:00 0
7f7f8737f000-7f7f87380000 r--p 0001d000 ca:06 14442498 /lib/ld-2.11.3.so
7f7f87380000-7f7f87381000 rw-p 0001e000 ca:06 14442498 /lib/ld-2.11.3.so
7f7f87381000-7f7f87382000 rw-p 00000000 00:00 0
7fff8db9f000-7fff8dbb5000 rw-p 00000000 00:00 0 [stack]
7fff8dbff000-7fff8dc00000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
VM Arguments:
java_command: <unknown>
java_class_path (initial): .:/users/ems/websophic/tomcat/lib:/users/ems/websophic/zookeeper/lib:/users/oracle/ora11/jlib:/users/oracle/ora11/product/jlib:/users/oracle/jre/1.1.7:/users/mysql/bin:/users/mysql/lib
Launcher Type: SUN_STANDARD
Environment Variables:
JAVA_HOME=/usr/java/jdk1.8.0_201
CLASSPATH=.:/users/ems/websophic/tomcat/lib:/users/ems/websophic/zookeeper/lib:/users/oracle/ora11/jlib:/users/oracle/ora11/product/jlib:/users/oracle/jre/1.1.7:/users/mysql/bin:/users/mysql/lib
PATH=/usr/java/jdk1.8.0_201/bin:/users/ems/websophic/tomcat/bin:/users/ems/websophic/zookeeper/bin:/usr/local/ant/bin:/users/ems/pcs9700/deployment/bin/libs:/users/ems/pcs9700/deployment/bin/inta:/users/ems/pcs9700/deployment/bin/WaveEx:/users/ems/pcs9700/deployment/bin/base:/users/ems/pcs9700/deployment/bin/plat:/users/ems/pcs9700/deployment/bin/his/:/users/ems/pcs9700/deployment/bin/mmi:/users/ems/pcs9700/deployment/bin/scada:/users/ems/pcs9700/deployment/bin/fe:/users/ems/pcs9700/deployment/bin/fe/plugin:/users/ems/pcs9700/deployment/bin/fe/fe_61850:/users/ems/pcs9700/deployment/bin/pas:/users/ems/pcs9700/deployment/bin/alarm:/users/ems/pcs9700/deployment/bin/app:/users/ems/pcs9700/deployment/bin/pdr:/users/ems/pcs9700/deployment/bin/pdrmgr:/users/ems/pcs9700/deployment/bin/graph:/users/ems/pcs9700/deployment/bin/report:/users/ems/pcs9700/deployment/bin/rule:/users/ems/pcs9700/deployment/bin/dbtools:/users/ems/pcs9700/deployment/bin/relay:/users/ems/pcs9700/deployment/bin/optab:/users/ems/pcs9700/deployment/bin/scontrol:/users/ems/pcs9700/deployment/bin/grd:/users/ems/pcs9700/deployment/bin/web:/users/ems/pcs9700/deployment/bin/remote:/users/ems/pcs9700/deployment/bin/pst:/users/ems/pcs9700/deployment/bin/pst/plugins:/usr/local/Trolltech/Qt-4.8.7/bin:/usr/local/Trolltech/Qt-4.8.7/bin/designer:/usr/bin:/sbin:/opt/intel/cce/10.1.017/bin:/opt/intel/idbe/10.1.017/bin:/users/oracle/ora11/bin:/usr/sbin:/users/oracle/ora11/bin:/usr/sbin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
LD_LIBRARY_PATH=/users/ems/liuzp/license_qt4/bin:/users/ems/pcs9700/deployment/bin/relay/WaveEx:/users/ems/pcs9700/deployment/bin/libs:/users/ems/pcs9700/deployment/bin/inta:/users/ems/pcs9700/deployment/bin/WaveEx:/users/ems/pcs9700/deployment/bin/base:/users/ems/pcs9700/deployment/bin/plat:/users/ems/pcs9700/deployment/bin/mmi:/users/ems/pcs9700/deployment/bin/scada:/users/ems/pcs9700/deployment/bin/fe:/users/ems/pcs9700/deployment/bin/fe/plugin:/users/ems/pcs9700/deployment/bin/pas:/users/ems/pcs9700/deployment/bin/alarm:/users/ems/pcs9700/deployment/bin/app:/users/ems/pcs9700/deployment/bin/graph:/users/ems/pcs9700/deployment/bin/report:/users/ems/pcs9700/deployment/bin/pdr:/users/ems/pcs9700/deployment/bin/pdrmgr:/users/ems/pcs9700/deployment/bin/rule:/users/ems/pcs9700/deployment/bin/dbtools:/users/ems/pcs9700/deployment/bin/relay:/users/ems/pcs9700/deployment/bin/fe/fe_61850:/users/ems/pcs9700/deployment/bin/his:/users/ems/pcs9700/deployment/bin/optab:/users/ems/pcs9700/deployment/bin/scontrol:/users/ems/pcs9700/deployment/bin/grd:/users/ems/pcs9700/deployment/bin/web:/users/ems/pcs9700/deployment/bin/remote:/users/ems/pcs9700/deployment/bin/pst:/users/ems/pcs9700/deployment/bin/pst/plugins:/users/ems/ActiveMQ/APR/lib:/users/ems/ActiveMQ/ActiveMQ_CPP/lib:/usr/local/Trolltech/Qt-4.8.7/lib:/users/ems/ACE_wrappers/ace:/opt/intel/cce/10.1.017/lib:/users/mysql/lib:/users/oracle/ora11/lib
SHELL=/bin/tcsh
HOSTTYPE=x86_64-linux
OSTYPE=linux
MACHTYPE=x86_64
Signal Handlers:
SIGSEGV: [libjvm.so+0xad3e60], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
SIGBUS: [libjvm.so+0xad3e60], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
SIGFPE: [libjvm.so+0x90b880], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
SIGPIPE: [libjvm.so+0x90b880], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
SIGXFSZ: [libjvm.so+0x90b880], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
SIGILL: [libjvm.so+0x90b880], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
SIGUSR1: SIG_DFL, sa_mask[0]=00000000000000000000000000000000, sa_flags=none
SIGUSR2: [libjvm.so+0x90b750], sa_mask[0]=00000000000000000000000000000000, sa_flags=SA_RESTART|SA_SIGINFO
SIGHUP: SIG_DFL, sa_mask[0]=00000000000000000000000000000000, sa_flags=none
SIGINT: SIG_DFL, sa_mask[0]=00000000000000000000000000000000, sa_flags=none
SIGTERM: SIG_DFL, sa_mask[0]=00000000000000000000000000000000, sa_flags=none
SIGQUIT: SIG_DFL, sa_mask[0]=00000000000000000000000000000000, sa_flags=none
--------------- S Y S T E M ---------------
OS:DISTRIB_ID=Linx
DISTRIB_RELEASE=6.0
DISTRIB_CODENAME=tang
DISTRIB_DESCRIPTION="Linx 6.0.60.4"
uname:Linux 2.6.32-5-linx-amd64 #1 SMP Mon May 18 04:02:09 UTC 2015 x86_64
libc:glibc 2.11.3 NPTL 2.11.3
rlimit: STACK 8192k, CORE 521000k, NPROC 10000, NOFILE 65536, AS infinity
load average:0.10 0.13 0.20
/proc/meminfo:
MemTotal: 8175204 kB
MemFree: 3178756 kB
Buffers: 116704 kB
Cached: 1067580 kB
SwapCached: 2072 kB
Active: 2940716 kB
Inactive: 1551836 kB
Active(anon): 2381488 kB
Inactive(anon): 929380 kB
Active(file): 559228 kB
Inactive(file): 622456 kB
Unevictable: 2500 kB
Mlocked: 2500 kB
SwapTotal: 15624184 kB
SwapFree: 15551212 kB
Dirty: 4336 kB
Writeback: 0 kB
AnonPages: 3308716 kB
Mapped: 556328 kB
Shmem: 900 kB
Slab: 137660 kB
SReclaimable: 102892 kB
SUnreclaim: 34768 kB
KernelStack: 14040 kB
PageTables: 156040 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 15951192 kB
Committed_AS: 15837036 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 49112 kB
VmallocChunk: 34359684168 kB
HardwareCorrupted: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 8188 kB
DirectMap2M: 8372224 kB
CPU:total 4 (initial active 4) (32 cores per cpu, 2 threads per core) family 6 model 62 stepping 4, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, avx, aes, clmul, erms, ht, tsc
/proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 62
model name : Intel(R) Xeon(R) CPU E5-2658 v2 @ 2.40GHz
stepping : 4
cpu MHz : 2400.062
cache size : 25600 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc rep_good pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic popcnt aes xsave avx hypervisor lahf_lm
bogomips : 4800.12
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 62
model name : Intel(R) Xeon(R) CPU E5-2658 v2 @ 2.40GHz
stepping : 4
cpu MHz : 2400.062
cache size : 25600 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 4
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc rep_good pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic popcnt aes xsave avx hypervisor lahf_lm
bogomips : 731.73
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:
processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 62
model name : Intel(R) Xeon(R) CPU E5-2658 v2 @ 2.40GHz
stepping : 4
cpu MHz : 2400.062
cache size : 25600 KB
physical id : 0
siblings : 4
core id : 2
cpu cores : 4
apicid : 4
initial apicid : 4
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc rep_good pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic popcnt aes xsave avx hypervisor lahf_lm
bogomips : 736.35
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 62
model name : Intel(R) Xeon(R) CPU E5-2658 v2 @ 2.40GHz
stepping : 4
cpu MHz : 2400.062
cache size : 25600 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
apicid : 6
initial apicid : 6
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc rep_good pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic popcnt aes xsave avx hypervisor lahf_lm
bogomips : 728.50
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:
Memory: 4k page, physical 8175204k(3178756k free), swap 15624184k(15551212k free)
vm_info: Java HotSpot(TM) 64-Bit Server VM (25.201-b09) for linux-amd64 JRE (1.8.0_201-b09), built on Dec 15 2018 11:35:59 by "java_re" with gcc 7.3.0
time: Fri Mar 29 08:19:32 2019
timezone: CST
elapsed time: 0 seconds (0d 0h 0m 0s)
------- Strace的输出---------
命令strace -f java -version的输出：
...
20359 clock_gettime(CLOCK_MONOTONIC, {4061888, 398184460}) = 0
20359 clock_gettime(CLOCK_MONOTONIC, {4061888, 398223171}) = 0
20359 open("/usr/java/jdk1.8.0_201/jre/lib/amd64/libzip.so", O_RDONLY) = 3
20359 fstat(3, {st_mode=S_IFREG|0755, st_size=127016, ...}) = 0
20359 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2868e4000
20359 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20(\0\0\0\0\0\0"..., 4096) = 4096
20359 lseek(3, 122880, SEEK_SET) = 122880
20359 read(3, "ffer\0Java_java_util_zip_ZipFile_"..., 4096) = 4096
20359 lseek(3, 0, SEEK_SET) = 0
20359 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20(\0\0\0\0\0\0"..., 4096) = 4096
20359 read(3, "\2601\0\0\0\0\0\0000\0\0\0\0\0\0\0\222\7\0\0\22\0\r\0\220?\0\0\0\0\0\0"..., 4096) = 4096
20359 lseek(3, 122880, SEEK_SET) = 122880
20359 read(3, "ffer\0Java_java_util_zip_ZipFile_"..., 4096) = 4096
20359 lseek(3, 4096, SEEK_SET) = 4096
20359 read(3, "\2601\0\0\0\0\0\0000\0\0\0\0\0\0\0\222\7\0\0\22\0\r\0\220?\0\0\0\0\0\0"..., 4096) = 4096
20359 lseek(3, 122880, SEEK_SET) = 122880
20359 read(3, "ffer\0Java_java_util_zip_ZipFile_"..., 4096) = 4096
20359 lseek(3, 110592, SEEK_SET) = 110592
20359 read(3, "\220\255!\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\306$\0\0\0\0\0\0"..., 4096) = 4096
20359 read(3, " w\0\0\0\0\0\0 \0\0\0\0\0\0\0\341\6\0\0\2\0\r\0\3201\1\0\0\0\0\0"..., 4096) = 4096
20359 read(3, "\352\22\0\0\22\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\v\23\0\0\22\0\r\0"..., 4096) = 4096
20359 lseek(3, 122880, SEEK_SET) = 122880
20359 read(3, "ffer\0Java_java_util_zip_ZipFile_"..., 4096) = 4096
20359 lseek(3, 118784, SEEK_SET) = 118784
20359 read(3, "\352\22\0\0\22\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\v\23\0\0\22\0\r\0"..., 4096) = 4096
20359 read(3, "ffer\0Java_java_util_zip_ZipFile_"..., 4096) = 4096
20359 lseek(3, 126976, SEEK_SET) = 126976
20359 read(3, "\252\347\1\0\0\0\0\0\372\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0"..., 4096) = 40
20359 lseek(3, 122880, SEEK_SET) = 122880
20359 read(3, "ffer\0Java_java_util_zip_ZipFile_"..., 4096) = 4096
20359 lseek(3, 126976, SEEK_SET) = 126976
20359 read(3, "\252\347\1\0\0\0\0\0\372\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0"..., 4096) = 40
20359 lseek(3, 0, SEEK_SET) = 0
20359 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20(\0\0\0\0\0\0"..., 4096) = 4096
20359 close(3) = 0
20359 munmap(0x7ff2868e4000, 4096) = 0
20359 open("/usr/java/jdk1.8.0_201/jre/lib/amd64/libzip.so", O_RDONLY) = 3
20359 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20(\0\0\0\0\0\0"..., 832) = 832
20359 fstat(3, {st_mode=S_IFREG|0755, st_size=127016, ...}) = 0
20359 mmap(NULL, 2208344, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7ff283a36000
20359 mprotect(0x7ff283a51000, 2093056, PROT_NONE) = 0
20359 mmap(0x7ff283c50000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1a000) = 0x7ff283c50000
20359 close(3) = 0
20359 mprotect(0x7ff283c50000, 4096, PROT_READ) = 0
20359 stat("/usr/java/jdk1.8.0_201/jre/lib/resources.jar", {st_mode=S_IFREG|0644, st_size=3505277, ...}) = 0
20359 stat("/usr/java/jdk1.8.0_201/jre/lib/rt.jar", {st_mode=S_IFREG|0644, st_size=66356161, ...}) = 0
20359 stat("/usr/java/jdk1.8.0_201/jre/lib/sunrsasign.jar", 0x7ff2868c2ab0) = -1 ENOENT (No such file or directory)
20359 stat("/usr/java/jdk1.8.0_201/jre/lib/jsse.jar", {st_mode=S_IFREG|0644, st_size=675599, ...}) = 0
20359 stat("/usr/java/jdk1.8.0_201/jre/lib/jce.jar", {st_mode=S_IFREG|0644, st_size=115646, ...}) = 0
20359 stat("/usr/java/jdk1.8.0_201/jre/lib/charsets.jar", {st_mode=S_IFREG|0644, st_size=3135615, ...}) = 0
20359 stat("/usr/java/jdk1.8.0_201/jre/lib/jfr.jar", {st_mode=S_IFREG|0644, st_size=560713, ...}) = 0
20359 stat("/usr/java/jdk1.8.0_201/jre/classes", 0x7ff2868c2ab0) = -1 ENOENT (No such file or directory)
20359 open("/usr/java/jdk1.8.0_201/jre/lib/meta-index", O_RDONLY) = 3
20359 fstat(3, {st_mode=S_IFREG|0644, st_size=2034, ...}) = 0
20359 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2868e4000
20359 read(3, "% VERSION 2\n% WARNING: this file"..., 4096) = 2034
20359 read(3, "", 4096) = 0
20359 close(3) = 0
20359 munmap(0x7ff2868e4000, 4096) = 0
20359 mmap(NULL, 251658240, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = 0x7ff274a36000
20359 mmap(0x7ff274a36000, 2555904, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ff274a36000
20359 mmap(NULL, 3932160, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = 0x7ff274676000
20359 mmap(0x7ff274676000, 40960, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ff274676000
20359 --- SIGSEGV (Segmentation fault) @ 0 (0) ---
20359 rt_sigreturn(0x7ff2868ed000) = 6
20359 clock_gettime(CLOCK_MONOTONIC, {4061888, 402566821}) = 0
20359 clock_gettime(CLOCK_MONOTONIC, {4061888, 402611035}) = 0
20359 mmap(0x83400000, 2092957696, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = 0x83400000
20359 mmap(NULL, 4091904, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = 0x7ff27428f000
20359 mmap(0x7ff274675000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7ff274675000
20359 mmap(0xd6700000, 44040192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Cannot allocate memory)
20359 write(2, "Java HotSpot(TM) 64-Bit Server V"..., 43) = 43
20359 write(2, "INFO: os::commit_memory(0x000000"..., 106) = 106
...
看来你已经过度禁用：
vm.overcommit_memory = 2
并且系统上当前分配的内存量几乎达到了极限。您可以在崩溃日志的/proc/meminfo部分中看到它：
CommitLimit: 15951192 kB
Committed_AS: 15837036 kB
解决方案是启用启发式过度使用处理：
sudo sysctl vm.overcommit_memory=0
或增加过度使用率：
sudo sysctl vm.overcommit_ratio=100
有关更多信息，请参阅overcommit-accounting和man 5 proc。