求助>这是不是内存不够造成的?>
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这是不是内存不够造成的?



这个问题是我用chipyard编译Boom的时候出现的。 是不是因为内存不够? 我在 1 核 2G 云服务器上运行的。

/bin/bash: line 1: 9986 Killed java -Xmx8G -Xss8M -XX:MaxPermSize=256M -jar /home/cuiyujie/workspace/Boom/chipyard/generators/rocket-chip/t-launch.jar -Dt.sourcemode=true -D**t.workspace=/home/cuiyujie/workspace/Boom/chipyard/tools “;project utilities; runMain utilities.GenerateSimFiles -td /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig -sim verilator” /home/cuiyujie/workspace/Boom/chipyard/common.mk:86: recipe for target ‘/home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/sim_files.f’ failed make: *** [/home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/sim_files.f] Error 137

我把内存调到4G的时候就出现了这个

Done elaborating. OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x00000006dc3b7000, 97148928, 0) failed; error=‘Cannot allocate memory’ (errno=12)
There is insufficient memory for the Java Runtime Environment to continue. Native memory allocation (mmap) failed to map 97148928 bytes for committing reserved memory. An error report file with more information is saved as: /home/cuiyujie/workspace/Boom/chipyard/hs_err_pid2876.log /home/cuiyujie/workspace/Boom/chipyard/common.mk:97: recipe for target ‘generator_temp’ failed make: *** [generator_temp] Error 1

我应该调整到8G内存,还是通过什么命令来增加进程可以使用的内存大小?

当我把内存调到16G的时候,就出现了这个

/bin/bash: line 1: 2642 Killed java -Xmx8G -Xss8M -XX:MaxPermSize=256M -jar /home/cuiyujie/workspace/Boom/chipyard/generators/rocket-chip/t-launch.jar -Dt.sourcemode=true -D**t.workspace=/home/cuiyujie/workspace/Boom/chipyard/tools “;project tapeout; runMain barstools.tapeout.transforms.GenerateTopAndHarness -o /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/chipyard.TestHarness.LargeBoomConfig.top.v -tho /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/chipyard.TestHarness.LargeBoomConfig.harness.v -i /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/chipyard.TestHarness.LargeBoomConfig.fir --syn-top ChipTop --harness-top TestHarness -faf /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/chipyard.TestHarness.LargeBoomConfig.anno.json -tsaof /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/chipyard.TestHarness.LargeBoomConfig.top.anno.json -tdf /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/firrtl_black_box_resource_files.top.f -tsf /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/chipyard.TestHarness.LargeBoomConfig.top.fir -thaof /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/chipyard.TestHarness.LargeBoomConfig.harness.anno.json -hdf /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/firrtl_black_box_resource_files.harness.f -thf /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/chipyard.TestHarness.LargeBoomConfig.harness.fir --infer-rw --repl-seq-mem -c:TestHarness:-o:/home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/chipyard.TestHarness.LargeBoomConfig.top.mems.conf -thconf /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig/chipyard.TestHarness.LargeBoomConfig.harness.mems.conf -td /home/cuiyujie/workspace/Boom/chipyard/sims/verilator/generated-src/chipyard.TestHarness.LargeBoomConfig -ll error” /home/cuiyujie/workspace/Boom/chipyard/common.mk:123: recipe for target ‘firrtl_temp’ failed make: *** [firrtl_temp] Error 137

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是的。当你的主机内存不足时,会抛出错误 137。

当你尝试把 8GB 分配给 JVM 时,OOM-Killer 会说“不,不可能”,然后开始发送 SIGKILL;这个 Killer 是一个主动进程,当系统内存水平过低时,它会杀死资源滥用进程来拯救系统。

在这种情况下,滥用进程(确实非常滥用)是你的 java 程序,它试图分配主机中最大可用内存的 4 倍以上(*)。

你应该:
- 最多给你的进程分配 ~1.2GB - 1.5GB。
- 如果你的进程确实需要那么多内存,先升级你的主机。
- 检查该过程是否真的需要 8GB。

另请注意,给定的参数容易出错:Xmx8G -Xss8M 表示堆最大为 8GB,最小为 8M。这应该更接近,因为 Xmx8G - Xms4G

*由于可用内存也不会是 2GB,而是介于 1.6-1.8 GB 之间

1月前