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背景/背景:
我们正在CompuLab CoM之一上运行Java应用程序:
https://compulab.co.il/products/computer-on-modules/cm-fx6/#overview
http://www.compulab.co.il/workspace/mediawiki/index.php5/CM-FX6_Linux
*strace -f -p PID*
root@cm-debian:~# /usr/lib/jvm/jdk1.7.0_60/bin/jmap -heap 3242
Attaching to process ID 3242, please wait...
Debugger attached successfully.
Client compiler detected.
JVM version is 24.60-b09
using thread-local object allocation.
Mark Sweep Compact GC
Heap Configuration:
MinHeapFreeRatio = 40
MaxHeapFreeRatio = 70
MaxHeapSize = 249561088 (238.0MB)
NewSize = 1048576 (1.0MB)
MaxNewSize = 4294836224 (4095.875MB)
OldSize = 4194304 (4.0MB)
NewRatio = 2
SurvivorRatio = 8
PermSize = 12582912 (12.0MB)
MaxPermSize = 67108864 (64.0MB)
G1HeapRegionSize = 0 (0.0MB)
Heap Usage:
New Generation (Eden + 1 Survivor Space):
capacity = 10092544 (9.625MB)
used = 6772088 (6.458366394042969MB)
free = 3320456 (3.1666336059570312MB)
67.09991058745942% used
Eden Space:
capacity = 9043968 (8.625MB)
used = 6620336 (6.3136444091796875MB)
free = 2423632 (2.3113555908203125MB)
73.2016743093297% used
From Space:
capacity = 1048576 (1.0MB)
used = 151752 (0.14472198486328125MB)
free = 896824 (0.8552780151367188MB)
14.472198486328125% used
To Space:
capacity = 1048576 (1.0MB)
used = 0 (0.0MB)
free = 1048576 (1.0MB)
0.0% used
tenured generation:
capacity = 22134784 (21.109375MB)
used = 17650936 (16.83324432373047MB)
free = 4483848 (4.276130676269531MB)
79.7429782915433% used
Perm Generation:
capacity = 19136512 (18.25MB)
used = 19023016 (18.141761779785156MB)
free = 113496 (0.10823822021484375MB)
99.40691386183647% used
9597 interned Strings occupying 729344 bytes.
top - 11:41:29 up 21:59, 2 users, load average: 1.51, 1.25, 1.22
Tasks: 93 total, 1 running, 92 sleeping, 0 stopped, 0 zombie
Cpu(s): 9.4%us, 8.0%sy, 0.0%ni, 82.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 966780k total, 273080k used, 693700k free, 27216k buffers
Swap: 0k total, 0k used, 0k free, 126352k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3242 root 20 0 398m 79m 11m S 23.6 8.4 346:16.82 java
3889 root 20 0 2804 1096 848 R 5.5 0.1 0:00.07 top
1 root 20 0 2124 688 596 S 0.0 0.1 0:02.92 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.03 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:14.32 ksoftirqd/0
5 root 20 0 0 0 0 S 0.0 0.0 0:00.14 kworker/u:0
6 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
7 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 khelper
root@cm-debian:~# java -XX:+PrintFlagsFinal -version | grep -iE 'HeapSize|PermSize|ThreadStackSize'
uintx AdaptivePermSizeWeight = 20 {product}
intx CompilerThreadStackSize = 0 {pd product}
uintx ErgoHeapSizeLimit = 0 {product}
uintx HeapSizePerGCThread = 67108864 {product}
uintx InitialHeapSize := 15468480 {product}
uintx LargePageHeapSizeThreshold = 134217728 {product}
uintx MaxHeapSize := 249561088 {product}
uintx MaxPermSize = 67108864 {pd product}
uintx PermSize = 12582912 {pd product}
intx ThreadStackSize = 320 {pd product}
intx VMThreadStackSize = 512 {pd product}
java version "1.7.0_60"
Java(TM) SE Runtime Environment (build 1.7.0_60-b19)
Java HotSpot(TM) Client VM (build 24.60-b09, mixed mode)
root@cm-debian:~# cat /proc/3242/limits
Limit Soft Limit Hard Limit Units
Max cpu time unlimited unlimited seconds
Max file size unlimited unlimited bytes
Max data size unlimited unlimited bytes
Max stack size 8388608 unlimited bytes
Max core file size 0 unlimited bytes
Max resident set unlimited unlimited bytes
Max processes unlimited unlimited processes
Max open files 8192 8192 files
Max locked memory 65536 65536 bytes
Max address space unlimited unlimited bytes
Max file locks unlimited unlimited locks
Max pending signals 16382 16382 signals
Max msgqueue size 819200 819200 bytes
Max nice priority 0 0
Max realtime priority 0 0
Max realtime timeout unlimited unlimited us
root@cm-debian:~# cat /proc/meminfo
MemTotal: 966780 kB
MemFree: 694312 kB
Buffers: 27384 kB
Cached: 126364 kB
SwapCached: 0 kB
Active: 140748 kB
Inactive: 107684 kB
Active(anon): 94992 kB
Inactive(anon): 2064 kB
Active(file): 45756 kB
Inactive(file): 105620 kB
Unevictable: 0 kB
Mlocked: 0 kB
HighTotal: 524288 kB
HighFree: 301088 kB
LowTotal: 442492 kB
LowFree: 393224 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 94692 kB
Mapped: 21220 kB
Shmem: 2376 kB
Slab: 13268 kB
SReclaimable: 5284 kB
SUnreclaim: 7984 kB
KernelStack: 960 kB
PageTables: 980 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 483388 kB
Committed_AS: 137260 kB
VmallocTotal: 286720 kB
VmallocUsed: 2928 kB
VmallocChunk: 283040 kB
root@cm-debian:~# vmstat -s
966780 K total memory
272468 K used memory
140776 K active memory
107712 K inactive memory
694312 K free memory
27392 K buffer memory
126404 K swap cache
0 K total swap
0 K used swap
0 K free swap
726963 non-nice user cpu ticks
0 nice user cpu ticks
621187 system cpu ticks
6371123 idle cpu ticks
3683 IO-wait cpu ticks
324 IRQ cpu ticks
2146 softirq cpu ticks
0 stolen cpu ticks
130871 pages paged in
97520 pages paged out
0 pages swapped in
0 pages swapped out
293822206 interrupts
494034482 CPU context switches
1412595732 boot time
3916 forks
root@cm-debian:~# cat /proc/sys/kernel/pid_max
32768
root@cm-debian:~# cat /proc/sys/kernel/threads-max
15102
root@cm-debian:~# cat /proc/sys/vm/max_map_count
65530
root@cm-debian:~# ls -l /proc/3242/task/ | wc -l
33
root@cm-debian:~# ps huH p 3242 | wc -l
32
root@cm-debian:~# grep -s '^Threads' /proc/[0-9]*/status | awk '{ sum += $2; } END { print sum; }'
122
root@cm-debian:~# ls -l /proc/3242/fd | wc -l
81
10:49:42,293> [INFO ] THREAD stack traces:
****************************************
ID: 56, name: Mpg123AudioPlayer_PASSENGER_ctrlLoop
java.lang.Thread.sleep(Native Method)
java.lang.Thread.sleep(Thread.java:340)
java.util.concurrent.TimeUnit.sleep(TimeUnit.java:360)
epis5fcc.audio.mpg.MpgAudioOutputPlayer.ctrlLoop(MpgAudioOutputPlayer.java:169)
epis5fcc.audio.mpg.MpgAudioOutputPlayer.access$000(MpgAudioOutputPlayer.java:19)
epis5fcc.audio.mpg.MpgAudioOutputPlayer$1.run(MpgAudioOutputPlayer.java:88)
java.lang.Thread.run(Thread.java:745)
ID: 11, name: AWT-EventQueue-0
java.lang.Thread.getStackTrace(Thread.java:1589)
epis5fcc.domain.debug.ThreadStackTracesLogger.log(ThreadStackTracesLogger.java:30)
epis5fcc.ui.settings.FccRegistryScreen$7.actionPerformed(FccRegistryScreen.java:303)
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
java.awt.Component.processMouseEvent(Component.java:6516)
javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
java.awt.Component.processEvent(Component.java:6281)
java.awt.Container.processEvent(Container.java:2229)
java.awt.Component.dispatchEventImpl(Component.java:4872)
java.awt.Container.dispatchEventImpl(Container.java:2287)
java.awt.Component.dispatchEvent(Component.java:4698)
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
java.awt.Container.dispatchEventImpl(Container.java:2273)
java.awt.Window.dispatchEventImpl(Window.java:2719)
java.awt.Component.dispatchEvent(Component.java:4698)
java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
java.awt.EventQueue.access$200(EventQueue.java:103)
java.awt.EventQueue$3.run(EventQueue.java:694)
java.awt.EventQueue$3.run(EventQueue.java:692)
java.security.AccessController.doPrivileged(Native Method)
java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
java.awt.EventQueue$4.run(EventQueue.java:708)
java.awt.EventQueue$4.run(EventQueue.java:706)
java.security.AccessController.doPrivileged(Native Method)
java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
ID: 34, name: Mpg123AudioPlayer_DRIVER_ctrlLoop
java.lang.Thread.sleep(Native Method)
java.lang.Thread.sleep(Thread.java:340)
java.util.concurrent.TimeUnit.sleep(TimeUnit.java:360)
epis5fcc.audio.mpg.MpgAudioOutputPlayer.ctrlLoop(MpgAudioOutputPlayer.java:169)
epis5fcc.audio.mpg.MpgAudioOutputPlayer.access$000(MpgAudioOutputPlayer.java:19)
epis5fcc.audio.mpg.MpgAudioOutputPlayer$1.run(MpgAudioOutputPlayer.java:88)
java.lang.Thread.run(Thread.java:745)
ID: 26, name: IOTxUdpAccessLoop_IODispatchAccess
java.lang.Thread.sleep(Native Method)
jCommons.comm.io.access.IOUdpAccess.transmitLoop(IOUdpAccess.java:114)
jCommons.comm.io.access.IOAccessBase$2.run(IOAccessBase.java:50)
java.lang.Thread.run(Thread.java:745)
ID: 29, name: MasterLoop_main
java.lang.Thread.sleep(Native Method)
jCommons.master.MasterLoop.ctrlLoop(MasterLoop.java:87)
jCommons.master.MasterLoop.access$000(MasterLoop.java:11)
jCommons.master.MasterLoop$1.run(MasterLoop.java:58)
java.lang.Thread.run(Thread.java:745)
ID: 27, name: IORxSerialPortAccessPollLoop_IOModemAccess
java.lang.Thread.sleep(Native Method)
jCommons.comm.io.access.IOSerialPortAccessPoll.reciveLoop(IOSerialPortAccessPoll.java:256)
jCommons.comm.io.access.IOAccessBase$1.run(IOAccessBase.java:43)
java.lang.Thread.run(Thread.java:745)
ID: 31, name: UsbUpdateWatchService_ctrlLoop
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
java.util.concurrent.LinkedBlockingDeque.takeFirst(LinkedBlockingDeque.java:489)
java.util.concurrent.LinkedBlockingDeque.take(LinkedBlockingDeque.java:678)
sun.nio.fs.AbstractWatchService.take(AbstractWatchService.java:118)
jCommons.update.usb.UsbUpdateWatchService.ctrlLoop(UsbUpdateWatchService.java:107)
jCommons.update.usb.UsbUpdateWatchService.access$000(UsbUpdateWatchService.java:25)
jCommons.update.usb.UsbUpdateWatchService$1.run(UsbUpdateWatchService.java:75)
java.lang.Thread.run(Thread.java:745)
ID: 25, name: IORxUdpAccessLoop_IODispatchAccess
java.net.PlainDatagramSocketImpl.receive0(Native Method)
java.net.AbstractPlainDatagramSocketImpl.receive(AbstractPlainDatagramSocketImpl.java:145)
java.net.DatagramSocket.receive(DatagramSocket.java:786)
jCommons.comm.io.access.IOUdpAccess.reciveLoop(IOUdpAccess.java:175)
jCommons.comm.io.access.IOAccessBase$1.run(IOAccessBase.java:43)
java.lang.Thread.run(Thread.java:745)
ID: 2, name: Reference Handler
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Object.java:503)
java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)
ID: 30, name: VehicleCtrl_ctrlLoop
java.lang.Thread.sleep(Native Method)
epis5fcc.domain.vehicle.control.VehicleCtrl.ctrlLoop(VehicleCtrl.java:74)
jCommons.comm.protocol.ProtCtrlBase$1.run(ProtCtrlBase.java:24)
java.lang.Thread.run(Thread.java:745)
ID: 35, name: Mpg123AudioPlayer_INNER_ctrlLoop
java.lang.Thread.sleep(Native Method)
java.lang.Thread.sleep(Thread.java:340)
java.util.concurrent.TimeUnit.sleep(TimeUnit.java:360)
epis5fcc.audio.mpg.MpgAudioOutputPlayer.ctrlLoop(MpgAudioOutputPlayer.java:169)
epis5fcc.audio.mpg.MpgAudioOutputPlayer.access$000(MpgAudioOutputPlayer.java:19)
epis5fcc.audio.mpg.MpgAudioOutputPlayer$1.run(MpgAudioOutputPlayer.java:88)
java.lang.Thread.run(Thread.java:745)
ID: 21, name: IORxSerialPortAccessPollLoop_IOFccAccess
java.lang.Thread.sleep(Native Method)
jCommons.comm.io.access.IOSerialPortAccessPoll.reciveLoop(IOSerialPortAccessPoll.java:256)
jCommons.comm.io.access.IOAccessBase$1.run(IOAccessBase.java:43)
java.lang.Thread.run(Thread.java:745)
ID: 7, name: FileWatchdog
java.lang.Thread.sleep(Native Method)
org.apache.log4j.helpers.FileWatchdog.run(FileWatchdog.java:104)
ID: 8, name: Java2D Disposer
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
sun.java2d.Disposer.run(Disposer.java:145)
java.lang.Thread.run(Thread.java:745)
ID: 17, name: com.google.inject.internal.util.$Finalizer
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
com.google.inject.internal.util.$Finalizer.run(Finalizer.java:114)
ID: 10, name: AWT-XAWT
sun.awt.X11.XToolkit.waitForEvents(Native Method)
sun.awt.X11.XToolkit.run(XToolkit.java:541)
sun.awt.X11.XToolkit.run(XToolkit.java:505)
java.lang.Thread.run(Thread.java:745)
ID: 32, name: Thread-4
sun.nio.fs.LinuxWatchService.poll(Native Method)
sun.nio.fs.LinuxWatchService.access$600(LinuxWatchService.java:47)
sun.nio.fs.LinuxWatchService$Poller.run(LinuxWatchService.java:311)
java.lang.Thread.run(Thread.java:745)
ID: 28, name: IOTxSerialPortAccessPollLoop_IOModemAccess
java.lang.Thread.sleep(Native Method)
jCommons.comm.io.access.IOSerialPortAccessPoll.transmitLoop(IOSerialPortAccessPoll.java:187)
jCommons.comm.io.access.IOAccessBase$2.run(IOAccessBase.java:50)
java.lang.Thread.run(Thread.java:745)
ID: 14, name: DestroyJavaVM
ID: 22, name: IOTxSerialPortAccessPollLoop_IOFccAccess
java.lang.Thread.sleep(Native Method)
jCommons.comm.io.access.IOSerialPortAccessPoll.transmitLoop(IOSerialPortAccessPoll.java:187)
jCommons.comm.io.access.IOAccessBase$2.run(IOAccessBase.java:50)
java.lang.Thread.run(Thread.java:745)
ID: 19, name: TimerQueue
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2082)
java.util.concurrent.DelayQueue.take(DelayQueue.java:220)
javax.swing.TimerQueue.run(TimerQueue.java:171)
java.lang.Thread.run(Thread.java:745)
ID: 12, name: AWT-Shutdown
java.lang.Object.wait(Native Method)
java.lang.Object.wait(Object.java:503)
sun.awt.AWTAutoShutdown.run(AWTAutoShutdown.java:296)
java.lang.Thread.run(Thread.java:745)
ID: 23, name: IORxUdpAccessLoop_IOCityScrnAccess
java.net.PlainDatagramSocketImpl.receive0(Native Method)
java.net.AbstractPlainDatagramSocketImpl.receive(AbstractPlainDatagramSocketImpl.java:145)
java.net.DatagramSocket.receive(DatagramSocket.java:786)
jCommons.comm.io.access.IOUdpAccess.reciveLoop(IOUdpAccess.java:175)
jCommons.comm.io.access.IOAccessBase$1.run(IOAccessBase.java:43)
java.lang.Thread.run(Thread.java:745)
ID: 3, name: Finalizer
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)
ID: 4, name: Signal Dispatcher
ID: 52, name: pool-3-thread-1
sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
java.lang.Thread.run(Thread.java:745)
ID: 24, name: IOTxUdpAccessLoop_IOCityScrnAccess
java.lang.Thread.sleep(Native Method)
jCommons.comm.io.access.IOUdpAccess.transmitLoop(IOUdpAccess.java:114)
jCommons.comm.io.access.IOAccessBase$2.run(IOAccessBase.java:50)
java.lang.Thread.run(Thread.java:745)
ID: 36, name: RemoteUpdateCtrl_ctrlLoop
java.lang.Thread.sleep(Native Method)
epis5fcc.domain.update.remote.RemoteUpdateCtrl.ctrlLoop(RemoteUpdateCtrl.java:94)
jCommons.comm.protocol.ProtCtrlBase$1.run(ProtCtrlBase.java:24)
java.lang.Thread.run(Thread.java:745)
ID: 55, name: Mpg123AudioPlayer_OUTER_ctrlLoop
java.lang.Thread.sleep(Native Method)
java.lang.Thread.sleep(Thread.java:340)
java.util.concurrent.TimeUnit.sleep(TimeUnit.java:360)
epis5fcc.audio.mpg.MpgAudioOutputPlayer.ctrlLoop(MpgAudioOutputPlayer.java:169)
epis5fcc.audio.mpg.MpgAudioOutputPlayer.access$000(MpgAudioOutputPlayer.java:19)
epis5fcc.audio.mpg.MpgAudioOutputPlayer$1.run(MpgAudioOutputPlayer.java:88)
java.lang.Thread.run(Thread.java:745)
最佳答案
这似乎是与GPT和本地计时器同时使用相关的问题。
在飞思卡尔社区,您可以从澄清的人那里看到one和您的问题以及other相似的更多问题。
对于分辨率,请应用此patch。
您可以从second post跳到Fresscale的内核3.10.17或kernel.org的3.13.3
目前,我正在尝试修补程序,以查看是否可以解决类似的问题。
关于java - Java和Linux操作系统随机挂起24分钟(Linux,arm,Debian,Java 7 ARM),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/26060209/
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我是在 Linux 上开发嵌入式 C++ 程序的新手。我有我的 Debian 操作系统,我在其中开发和编译了我的 C++ 项目(一个简单的控制台进程)。 我想将我的应用程序放到另一个 Debian 操
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我使用4.19.78版本的稳定内核,我想找到带有企鹅二进制数据的C数组。系统启动时显示。我需要在哪里搜索该内容? 我在 include/linux/linux_logo.h 文件中只找到了一些 Log
我知道可以使用 gdb 的服务器模式远程调试代码,我知道可以调试针对另一种架构交叉编译的代码,但是是否可以更进一步,从远程调试 Linux 应用程序OS X 使用 gdbserver? 最佳答案 当然
是否有任何可能的方法来运行在另一个 Linux 上编译的二进制文件?我知道当然最简单的是在另一台机器上重建它,但假设我们唯一能得到的是一个二进制文件,那么这可能与否? (我知道这可能并不容易,但我只是
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