{"id":1759,"date":"2024-11-27T15:42:22","date_gmt":"2024-11-27T07:42:22","guid":{"rendered":"https:\/\/www.madbull.site\/?p=1759"},"modified":"2024-11-27T16:13:01","modified_gmt":"2024-11-27T08:13:01","slug":"linux%e7%b3%bb%e7%bb%9f%e4%bf%a1%e5%8f%b7","status":"publish","type":"post","link":"https:\/\/www.madbull.site\/?p=1759","title":{"rendered":"linux\u7cfb\u7edf\u4fe1\u53f7\u7b80\u4ecb"},"content":{"rendered":"\n

\u4ecb\u7ecd<\/strong><\/p>\n\n\n\n

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\u4fe1\u53f7\u662f\u4e00\u79cd\u91cd\u8981\u7684\u8fdb\u7a0b\u95f4\u901a\u8baf\u65b9\u5f0f\uff0c\u8fd9\u4e9b\u4fe1\u53f7\u6709\u7684\u6709\u7279\u5b9a\u7684\u7528\u6cd5\uff0c\u6709\u7684\u53ef\u4f5c\u4e3a\u6269\u5c55\u548c\u81ea\u5b9a\u4e49\u4f7f\u7528\u3002\u5e76\u4e14\u5927\u591a\u6570\u4fe1\u53f7\u662f\u53ef\u4ee5\u88ab\u91cd\u65b0\u5b9a\u4e49\u5904\u7406\u51fd\u6570\u7684\u3002\u53ea\u6709\u4e24\u4e2a\u4fe1\u53f7 SIGKILL \u548c SIGSTOP \u662f\u4e0d\u53ef\u4ee5\u88ab\u6355\u6349\u3001\u5ffd\u7565\u548c\u963b\u585e\u7684\uff0c\u8fd9\u662f\u4e3a\u4e86\u64cd\u4f5c\u7cfb\u7edf\u66f4\u597d\u7684\u63a7\u5236\u8fdb\u7a0b\u548c\u7cfb\u7edf\u8d44\u6e90\uff0c\u9632\u6b62\u6ee5\u7528\u4fe1\u53f7\uff0c\u786e\u4fdd\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002\u6b64\u7bc7\u6587\u7ae0\u9010\u4e00\u89e3\u91ca\u4e00\u4e0b\u6bcf\u4e00\u4e2a\u4fe1\u53f7\u7684\u4f5c\u7528\u3002<\/p>\n\n\n\n

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\u53ef\u4ee5\u7528\u7cfb\u7edf\u6307\u4ee4\uff1akill -l \u67e5\u770b\u7cfb\u7edf\u652f\u6301\u7684\u4fe1\u53f7\uff0c\u8f93\u51fa\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n\n\n\n

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\"\"<\/figure>\n\n\n\n
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\u53ef\u4ee5\u770b\u51fa\uff0clinux \u7cfb\u7edf\u4e00\u822c\u652f\u6301 1-31\u300134-64 \u517162\u4e2a\u4fe1\u53f7\u3002\u5176\u4e2d\uff1a<\/p>\n\n\n\n

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1-31 \u662f\u4f20\u7edf\u4fe1\u53f7\uff0c\u8fd9\u4e9b\u4fe1\u53f7\u5728Unix\u548c\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u662f\u6807\u51c6\u5316\u7684\uff0c\u6bcf\u4e2a\u4fe1\u53f7\u90fd\u6709\u5176\u7279\u5b9a\u7684\u7528\u9014\u548c\u884c\u4e3a\u3002<\/p>\n\n\n\n

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34-64 \u662f\u5b9e\u65f6\u4fe1\u53f7\uff0c\u7528\u4e8e\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u81ea\u5b9a\u4e49\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1\u3002\u5b9e\u65f6\u4fe1\u53f7\u7684\u4e3b\u8981\u7279\u70b9\u662f\u5b83\u4eec\u652f\u6301\u6392\u961f<\/strong>\uff0c\u8fd9\u610f\u5473\u7740\u5982\u679c\u591a\u4e2a\u76f8\u540c\u7c7b\u578b\u7684\u5b9e\u65f6\u4fe1\u53f7\u88ab\u53d1\u9001\u7ed9\u540c\u4e00\u4e2a\u63a5\u6536\u8005\uff0c\u63a5\u6536\u8005\u4f1a\u6309\u987a\u5e8f\u63a5\u6536\u5230\u6bcf\u4e00\u4e2a\u4fe1\u53f7\uff0c\u800c\u4e0d\u4f1a\u4e22\u5931\u4efb\u4f55\u4fe1\u53f7<\/strong>\u3002\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u4f20\u7edf\u4fe1\u53f7\u5982\u679c\u591a\u6b21\u53d1\u9001\uff0c\u5219\u53ef\u80fd\u53ea\u4f1a\u63a5\u6536\u5230\u4e00\u6b21\u3002\u53e6\u5916\u5b83\u4eec\u6bd4\u4f20\u7edf\u4fe1\u53f7\u5177\u6709\u66f4\u9ad8\u7684\u4f18\u5148\u7ea7<\/strong>\u3002<\/p>\n\n\n\n

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\u4fe1\u53f7\u89e3\u91ca<\/strong><\/p>\n\n\n\n

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\u5199\u4e86\u4e00\u5c0f\u6bb5\u4ee3\u7801\uff0c\u6765\u9010\u4e00\u6d4b\u8bd5\u8fdb\u7a0b\u63a5\u6536\u5230\u4fe1\u53f7\u540e\uff0c\u9ed8\u8ba4\u7684\u5904\u7406\u65b9\u5f0f\u3002\u6d4b\u8bd5\u4e0d\u540c\u7684\u4fe1\u53f7\uff0c\u628a\u4e0b\u8fb9\u7684\u4ee3\u7801\u4e2d SIGHUP \u66ff\u6362\u6389\u5c31\u53ef\u4ee5\u4e86\u3002\u53ef\u901a\u8fc7\u6307\u4ee4\uff1agcc -o e_tsig1 tsig1.c \u7f16\u8bd1\u4ee3\u7801\u3002\u64cd\u4f5c\u7cfb\u7edf\u53d1\u884c\u7248\u4e0d\u4e00\u6837\uff0c\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\u53ef\u80fd\u4f1a\u4e0d\u4e00\u6837\uff0c\u4f46\u662f\u4e0d\u4f1a\u76f8\u5dee\u592a\u591a<\/strong>\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n

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\/\/ gcc -o e_tsig1 tsig1.c\n\n#include<stdio.h>\n#include<stdlib.h>\n#include<unistd.h>\n#include<signal.h>\n\nint main() {\n    unsigned int mypid = 0 ;\n    printf(\"my pid is :%u\\n\", (mypid = getpid()) ) ;\n    kill(mypid, SIGHUP) ;\n    while(1) {\n        printf(\"still running %u\\n\", mypid) ;\n        sleep(1) ;\n    }\n}<\/code><\/pre>\n\n\n\n
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SIGHUP 1 \uff1aHangup<\/strong> \u7ec8\u7aef\u6302\u65ad\u4fe1\u53f7\uff0c\u901a\u5e38\u5728\u7ec8\u7aef\u8fde\u63a5\u4e2d\u65ad\u3001\u7528\u6237\u4ece\u7cfb\u7edf\u6ce8\u9500\u3001\u7f51\u7edc\u8fde\u63a5\u65ad\u5f00\u65f6\u4ea7\u751f\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u6355\u6349\u6b64\u4fe1\u53f7\uff0c\u91cd\u65b0\u5904\u7406\u51fd\u6570\uff0c\u7528\u6765\u91cd\u65b0\u52a0\u8f7d\u7a0b\u5e8f\u914d\u7f6e\u4f7f\u7528\u3002systemctl reload xxxx.service \u9ed8\u8ba4\u5c31\u662f\u53d1\u9001\u7684\u6b64\u4fe1\u53f7\uff0c\u8fd9\u5c31\u9700\u8981\u63a5\u6536\u4fe1\u53f7\u7684\u8fdb\u7a0b\u54cd\u5e94\u6b64\u4fe1\u53f7\uff0c\u91cd\u5199\u4fe1\u53f7\u5904\u7406\u51fd\u6570\u3002<\/p>\n\n\n\n
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SIGINT 2 \uff1aInterrupt<\/strong> \u4e2d\u65ad\u4fe1\u53f7\uff0c\u7528\u6237\u8f93\u5165 Ctrl + C \u5c31\u662f\u53d1\u9001\u7684\u6b64\u4fe1\u53f7\uff0c\u901a\u5e38\u7528\u4e8e\u5feb\u901f\u7ec8\u6b62\u8fdb\u7a0b\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u8fdb\u7a0b\u5feb\u901f\u88ab\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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SIGQUIT 3 \uff1aQuit<\/strong> \u9000\u51fa\u4fe1\u53f7\uff0c\u5e76\u751f\u6210\u6838\u5fc3\u8f6c\u50a8\u6587\u4ef6\uff08coredump\u6587\u4ef6\uff09\uff0c\u53ef\u7531\u7528\u6237\u8f93\u5165 Ctrl + \\ \u53d1\u9001\u6b64\u4fe1\u53f7\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u8fdb\u7a0b\u9000\u51fa\uff0c\u751f\u6210 coredump \u6587\u4ef6\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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SIGILL 4 \uff1aIllegal Instruction<\/strong> \u975e\u6cd5\u6307\u4ee4\u4fe1\u53f7\u3002\u8fd9\u91cc\u7684\u6307\u4ee4\u6307\u7684\u662fCPU\u6307\u4ee4\uff0c\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u5728\u68c0\u6d4b\u5230\u8fdb\u7a0b\u5c1d\u8bd5\u6267\u884c\u975e\u6cd5\u6307\u4ee4\u65f6\u81ea\u52a8\u53d1\u8d77\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u5e76\u751f\u6210\u6838\u5fc3\u8f6c\u50a8\u6587\u4ef6\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u901a\u5e38\u5728\u7f16\u8bd1\u3001\u8fd0\u884c\u4e8c\u8fdb\u5236\u6216\u8005\u786c\u4ef6\u6545\u969c\u7684\u60c5\u51b5\u4e0b\u4f1a\u53d1\u751f\u3002\u5728\u8c03\u8bd5\u4ee3\u7801\u7684\u65f6\u5019\uff0c\u5185\u5b58\u6ea2\u51fa\u7684\u60c5\u51b5\u4e0b\u7ecf\u5e38\u4f1a\u51fa\u73b0\u6b64\u4fe1\u53f7<\/mark><\/strong>\uff0c\u6570\u636e\u88ab\u8986\u76d6\uff0c\u5c24\u5176\u662f\u4ee3\u7801\u6bb5\u88ab\u8986\u76d6\uff0c\u5bfc\u81f4\u6307\u4ee4\u9519\u4e71\u3002<\/p>\n\n\n\n
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SIGTRAP 5 \uff1aTrace\/Breakpoint Trap<\/strong> \u65ad\u70b9\u4fe1\u53f7\u3002\u901a\u5e38\u7528\u4e8e\u8c03\u8bd5\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u5e76\u751f\u6210\u6838\u5fc3\u8f6c\u50a8\u6587\u4ef6\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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SIGABRT 6 \uff1aAbort<\/strong> \u8fdb\u7a0b\u5f02\u5e38\u7ec8\u6b62\u4fe1\u53f7\uff0c\u7531abort(3)\u51fd\u6570\u8c03\u7528\u89e6\u53d1\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u5e76\u751f\u6210\u6838\u5fc3\u8f6c\u50a8\u6587\u4ef6\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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SIGBUS 7 \uff1aBus<\/strong> \u603b\u7ebf\u9519\u8bef\uff0c\u901a\u5e38\u6307\u975e\u6cd5\u5185\u5b58\u5730\u5740\u8bbf\u95ee\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u5e76\u751f\u6210\u6838\u5fc3\u8f6c\u50a8\u6587\u4ef6\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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SIGFPE 8 \uff1aFloating Point Exception<\/strong> \u6d6e\u70b9\u8fd0\u7b97\u9519\u8bef\uff0c\u901a\u5e38\u6307\u9664\u4ee50\u9519\u8bef\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u5e76\u751f\u6210\u6838\u5fc3\u8f6c\u50a8\u6587\u4ef6\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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SIGKILL 9 \uff1aKill<\/strong> \u5f3a\u5236\u7ec8\u6b62\u8fdb\u7a0b\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u8fd9\u4e2a\u4fe1\u53f7\u4e0d\u80fd\u88ab\u6355\u83b7\u3001\u963b\u585e\u6216\u5ffd\u7565\uff0c\u7528\u4e8e\u7acb\u5373\u7ed3\u675f\u8fdb\u7a0b\u3002\u5b83\u662f\u5f53\u5176\u4ed6\u4fe1\u53f7\u65e0\u6cd5\u4f7f\u8fdb\u7a0b\u9000\u51fa\u65f6\u7684\u6700\u540e\u624b\u6bb5\u3002<\/p>\n\n\n\n
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SIGUSR1 10 \uff1aUser Defined Signal 1 <\/strong>\u7528\u6237\u81ea\u5b9a\u4e49\u4fe1\u53f71\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u4e00\u822c\u7528\u6765\u88ab\u91cd\u5199\u4fe1\u53f7\u5904\u7406\u51fd\u6570\u3002<\/p>\n\n\n\n
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SIGSEGV 11 \uff1aSegmentation Violation<\/strong> \u65ad\u9519\u8bef\u4fe1\u53f7\u3002\u53d1\u751f\u4e86\u975e\u6cd5\u5185\u5b58\u5730\u5740\u8bbf\u95ee\u65f6\uff0c\u4f1a\u6536\u5230\u6b64\u4fe1\u53f7\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u5e76\u521b\u5efa\u6838\u5fc3\u8f6c\u50a8\u6587\u4ef6\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\u5185\u5b58\u6ea2\u51fa\u3001double free\u3001\u8bbf\u95ee\u5730\u5740\u8d8a\u754c\u7b49\u90fd\u4f1a\u62a5\u6b64\u9519\u8bef\u3002<\/p>\n\n\n\n
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SIGUSR2 12 \uff1aUser Defined Signal 2 <\/strong>\u7528\u6237\u81ea\u5b9a\u4e49\u4fe1\u53f72\u3002<\/p>\n\n\n\n
<\/div>\n\n\n\n
\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u4e00\u822c\u7528\u6765\u88ab\u91cd\u5199\u4fe1\u53f7\u5904\u7406\u51fd\u6570\u3002<\/p>\n\n\n\n
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SIGPIPE 13 \uff1aBroken Pipe<\/strong> \u7ba1\u9053\u5199\u5165\u9519\u8bef\u4fe1\u53f7\u3002\u901a\u5e38\u8868\u793a\u5411\u5df2\u5173\u95ed\u7684\u7ba1\u9053\u5199\u5165\u6570\u636e\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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SIGALRM 14 \uff1aAlarm Clock<\/strong> \u5b9a\u65f6\u5668\u5230\u671f\u4fe1\u53f7\uff0c\u901a\u5e38\u7531 alarm \u51fd\u6570\u8bbe\u7f6e\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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SIGTERM 15 \uff1aTerminate<\/strong> \u8bf7\u6c42\u7ec8\u6b62\u8fdb\u7a0b\u4fe1\u53f7\uff0c\u901a\u5e38\u7528\u4e8e\u4f18\u96c5\u5730\u5173\u95ed\u8fdb\u7a0b\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u4e00\u822c\u4f1a\u91cd\u5199\u6b64\u4fe1\u53f7\u7684\u5904\u7406\u51fd\u6570\uff0c\u505a\u4e00\u4e9b\u5fc5\u8981\u7684\u8d44\u6e90\u56de\u6536\u548c\u5173\u95ed\u3002systemctl stop xxxx.service \u9ed8\u8ba4\u5c31\u662f\u53d1\u9001\u7684 SIGTERM \u4fe1\u53f7\u3002\u6b64\u4fe1\u53f7 \u548c SIGINT \u51e0\u4e4e\u4e00\u6837\u7684\u529f\u80fd\u3002<\/p>\n\n\n\n
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SIGSTKFLT 16 \uff1aStack Fault<\/strong> \u6808\u6545\u969c\u4fe1\u53f7\u3002\u5b83\u4e3b\u8981\u7528\u4e8e\u65e7\u7684 SPARC \u67b6\u6784\u4e0a\u7684\u6d6e\u70b9\u6808\u6ea2\u51fa\u3002<\/p>\n\n\n\n
<\/div>\n\n\n\n
\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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SIGCHLD 17 \uff1aChild Process Stopped or Terminated<\/strong> \u5b50\u8fdb\u7a0b\u72b6\u6001\u6539\u53d8\u4fe1\u53f7\u3002\u5f53\u5b50\u8fdb\u7a0b\u505c\u6b62\u6216\u7ec8\u6b62\u65f6\u53d1\u9001\u7ed9\u7236\u8fdb\u7a0b<\/p>\n\n\n\n
<\/div>\n\n\n\n
\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u5ffd\u7565\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u5982\u679c\u9700\u8981\u5904\u7406\u5b50\u8fdb\u7a0b\u7684\u8fd4\u56de\u4fe1\u606f\uff0c\u9700\u8981\u5bf9\u6b64\u4fe1\u53f7\u6dfb\u52a0\u4fe1\u53f7\u5904\u7406\u51fd\u6570\u3002<\/p>\n\n\n\n
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SIGCONT 18 \uff1aContinue<\/strong> \u6062\u590d\u8fdb\u7a0b\u4fe1\u53f7\u3002\u5f53\u8fdb\u7a0b\u88ab\u6682\u505c\u7684\u65f6\u5019\uff0c\u901a\u8fc7\u6b64\u4fe1\u53f7\u7ee7\u7eed\u8ba9\u8fdb\u7a0b\u6267\u884c\u3002<\/p>\n\n\n\n
<\/div>\n\n\n\n
\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ee7\u7eed\u6267\u884c\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u5355\u72ec\u89e6\u53d1\u6b64\u4fe1\u53f7\u662f\u6ca1\u6709\u610f\u4e49\u7684\uff0c\u5f53\u8fdb\u7a0b\u88ab SIGSTOP \u3001SIGTSTP \u3001SIGTTIN \u3001SIGTTOU<\/strong> \u6682\u505c\u6216\u8005\u7531\u4e8e\u5176\u4ed6\u539f\u56e0\u6682\u505c\u7684\u65f6\u5019\uff0c\u6536\u5230\u6b64\u4fe1\u53f7\uff0c\u5c31\u4f1a\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n\n\n\n
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SIGSTOP 19 \uff1aStop<\/strong> \u6682\u505c\u8fdb\u7a0b\u4fe1\u53f7\u3002\u6682\u505c\u8fdb\u7a0b\uff0c\u4e0d\u80fd\u88ab\u963b\u585e\u3001\u6355\u83b7\u6216\u5ffd\u7565\u3002\u8fdb\u7a0b\u53ef\u4ee5\u88ab SIGCONT <\/strong>\u518d\u6b21\u542f\u52a8\u3002<\/p>\n\n\n\n
<\/div>\n\n\n\n
\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u6682\u505c\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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SIGTSTP 20 \uff1aTerminal Stop<\/strong> \u6682\u505c\u8fdb\u7a0b\u4fe1\u53f7\u3002\u6682\u505c\u8fdb\u7a0b\uff0c\u53ef\u4ee5\u88ab\u6355\u83b7\u6216\u5ffd\u7565\u3002\u8fdb\u7a0b\u53ef\u4ee5\u88ab SIGCONT <\/strong>\u518d\u6b21\u542f\u52a8\u3002<\/p>\n\n\n\n
<\/div>\n\n\n\n
\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u6682\u505c\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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SIGTTIN 21 \uff1aBackground Read from TTY<\/strong> \u7ec8\u7aef\u8f93\u5165\u4fe1\u53f7\u3002\u6682\u505c\u8fdb\u7a0b\uff0c\u6536\u5230\u6b64\u4fe1\u53f7\u4ee3\u8868\u540e\u53f0\u8bd5\u56fe\u8bfb\u53d6\u63a7\u5236\u7ec8\u7aef\u63d0\u4f9b\u7684\u6570\u636e\u3002\u8fdb\u7a0b\u53ef\u4ee5\u88ab SIGCONT <\/strong>\u518d\u6b21\u542f\u52a8\u3002<\/p>\n\n\n\n
<\/div>\n\n\n\n
\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u6682\u505c\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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SIGTTOU 22 \uff1aBackground Write from TTY<\/strong> \u7ec8\u7aef\u8f93\u51fa\u4fe1\u53f7\u3002\u6682\u505c\u8fdb\u7a0b\uff0c\u6536\u5230\u6b64\u4fe1\u53f7\u4ee3\u8868\u540e\u53f0\u8bd5\u56fe\u628a\u6570\u636e\u5199\u5165\u63a7\u5236\u7ec8\u7aef\u3002\u8fdb\u7a0b\u53ef\u4ee5\u88ab SIGCONT <\/strong>\u518d\u6b21\u542f\u52a8\u3002<\/p>\n\n\n\n
<\/div>\n\n\n\n
\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u6682\u505c\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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SIGURG 23 \uff1aUrgent Condition on Socket<\/strong> \u7d27\u6025\u6570\u636e\u53ef\u7528\u4fe1\u53f7\u3002\u63a5\u6536\u5230\u6b64\u4fe1\u53f7\u8bf4\u660e\u5957\u63a5\u5b57\u4e0a\u6709\u7d27\u6025\u6761\u4ef6\u9700\u8981\u5904\u7406\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u5ffd\u7565\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u4fe1\u53f7\u7528\u4e8e\u901a\u77e5\u8fdb\u7a0b\u5176\u5957\u63a5\u5b57\u4e0a\u6709\u7d27\u6025\u6570\u636e\u5230\u8fbe\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u8fdb\u7a0b\u4f1a\u5ffd\u7565\u8fd9\u4e2a\u4fe1\u53f7\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u5b89\u88c5\u4fe1\u53f7\u5904\u7406\u51fd\u6570\u6765\u6355\u83b7\u5e76\u5904\u7406\u7d27\u6025\u6570\u636e\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u5b9e\u65f6\u54cd\u5e94\u7684\u901a\u4fe1\u573a\u666f\u975e\u5e38\u6709\u7528\u3002\u901a\u8fc7\u7ba1\u7406 SIGURG<\/code> \u4fe1\u53f7\uff0c\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u5b9e\u65f6\u6027\u548c\u54cd\u5e94\u80fd\u529b\u3002<\/p>\n\n\n\n
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SIGXCPU 24 \uff1aExceeded CPU Time Limit<\/strong> CPU\u4f7f\u7528\u8d85\u65f6\u4fe1\u53f7\u3002\u5728\u8fdb\u7a0b\u8d85\u8fc7\u4e3a\u5176\u5206\u914d\u7684CPU\u65f6\u95f4\u9650\u5236\u65f6\u4f1a\u63a5\u6536\u5230\u6765\u81ea\u7cfb\u7edf\u7684\u53d1\u9001\u7684\u8fd9\u4e2a\u4fe1\u53f7\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u5e76\u521b\u5efa\u6838\u5fc3\u8f6c\u50a8\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u5728\u6267\u884c ulimit -t \u53ef\u4ee5\u67e5\u770b\u7cfb\u7edf\u8bbe\u7f6e\u7684CPU\u9650\u5236\uff0c\u4e00\u822c\u9ed8\u8ba4\u90fd\u662f\u4e0d\u9650\u5236\u7684\u3002\u6216\u8005\u901a\u8fc7 struct rlimit \u8bbe\u7f6e\u8fdb\u7a0b\u5360\u7528CPU\u65f6\u95f4\uff0c\u4e00\u65e6\u8d85\u8fc7 CPU \u65f6\u95f4\u9650\u5236\uff0c\u5c31\u4f1a\u89e6\u53d1\u6b64\u4fe1\u53f7\u3002<\/p>\n\n\n\n
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SIGXFSZ 25 \uff1aExceeded File Size Limit<\/strong> \u8d85\u8fc7\u6587\u4ef6\u5927\u5c0f\u9650\u5236\u4fe1\u53f7\u3002\u5728\u8fdb\u7a0b\u8d85\u8fc7\u6587\u4ef6\u5927\u5c0f\u9650\u5236\u65f6\u4f1a\u63a5\u6536\u5230\u6765\u81ea\u7cfb\u7edf\u7684\u53d1\u9001\u7684\u8fd9\u4e2a\u4fe1\u53f7\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u5e76\u521b\u5efa\u6838\u5fc3\u8f6c\u50a8\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u5728\u6267\u884c ulimit -f \u53ef\u4ee5\u67e5\u770b\u7cfb\u7edf\u8bbe\u7f6e\u7684\u6587\u4ef6\u5927\u5c0f\u9650\u5236\uff0c\u4e00\u822c\u9ed8\u8ba4\u90fd\u662f\u4e0d\u9650\u5236\u7684\u3002\u6216\u8005\u901a\u8fc7 struct rlimit \u8bbe\u7f6e\u8fdb\u7a0b\u6253\u5f00\u6587\u4ef6\u9650\u5236\uff0c\u4e00\u65e6\u8d85\u8fc7\u9650\u5236\uff0c\u5c31\u4f1a\u89e6\u53d1\u6b64\u4fe1\u53f7\u3002<\/p>\n\n\n\n
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SIGVTALRM 26 \uff1aVirtual Timer Expired<\/strong> \u865a\u62df\u5b9a\u65f6\u5668\u5230\u671f\u4fe1\u53f7\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u865a\u62df\u5b9a\u65f6\u5668\u662f\u4e00\u79cd\u57fa\u4e8e\u8fdb\u7a0b\u7684\u7528\u6237\u6001\u65f6\u95f4\u7684\u5b9a\u65f6\u5668\uff0c\u4e0e\u5b9e\u9645\u7684\u7cfb\u7edf\u65f6\u95f4\u65e0\u5173\uff0c\u53ea\u8ba1\u7b97\u8fdb\u7a0b\u5728\u7528\u6237\u6001\u4e0b\u5b9e\u9645\u8fd0\u884c\u7684\u65f6\u95f4\u3002<\/p>\n\n\n\n
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SIGPROF 27 \uff1aProfiling Timer Expired<\/strong> \u6027\u80fd\u5206\u6790\u5b9a\u65f6\u5668\u5230\u671f\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u8bb0\u5f55\u7a0b\u5e8f\u5728\u4e0d\u540c\u90e8\u5206\u7684\u6267\u884c\u65f6\u95f4\uff0c\u5e2e\u52a9\u8bc6\u522b\u74f6\u9888\u548c\u4f18\u5316\u4ee3\u7801\u3002\u53ef\u4ee5\u901a\u8fc7 setitimer<\/code> \u7cfb\u7edf\u8c03\u7528\u6765\u8bbe\u7f6e\u6027\u80fd\u5206\u6790\u5b9a\u65f6\u5668\u3002setitimer<\/code> \u53ef\u4ee5\u8bbe\u7f6e\u4e09\u79cd\u7c7b\u578b\u7684\u5b9a\u65f6\u5668\uff0c\u5176\u4e2d\u5305\u62ec\u6027\u80fd\u5206\u6790\u5b9a\u65f6\u5668\uff08ITIMER_PROF<\/code>\uff09\u3002<\/p>\n\n\n\n
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SIGWINCH 28 \uff1aWindow Change<\/strong> \u7a97\u53e3\u5927\u5c0f\u6539\u53d8\u4fe1\u53f7\u3002\u5728\u7ec8\u7aef\u7a97\u53e3\u5927\u5c0f\u53d1\u751f\u53d8\u5316\u65f6\u53d1\u9001\u7ed9\u8fdb\u7a0b\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u5ffd\u7565\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u901a\u8fc7\u7406\u89e3\u548c\u7ba1\u7406 SIGWINCH<\/code> \u4fe1\u53f7\uff0c\u53ef\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u7528\u6237\u4f53\u9a8c\u548c\u9002\u5e94\u6027\u3002<\/p>\n\n\n\n
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SIGIO 29 \uff1aInput\/Output Possible<\/strong> I\/O\u53ef\u64cd\u4f5c\u4fe1\u53f7\u3002\u901a\u77e5\u8fdb\u7a0b\u67d0\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u5df2\u7ecf\u51c6\u5907\u597d\u8fdb\u884c I\/O \u64cd\u4f5c\uff0c\u901a\u5e38\u7528\u4e8e\u5f02\u6b65 I\/O \u64cd\u4f5c\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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SIGPWR 30 \uff1aPower Failure<\/strong> \u7535\u6e90\u6545\u969c\u6216\u5373\u5c06\u5173\u673a\u4fe1\u53f7\u3002\u901a\u77e5\u8fdb\u7a0b\u7535\u6e90\u5373\u5c06\u65ad\u5f00\uff0c\u901a\u5e38\u662f\u7531\u4e8e\u7cfb\u7edf\u68c0\u6d4b\u5230\u7535\u6e90\u6545\u969c\u6216\u5373\u5c06\u5173\u673a\u800c\u53d1\u9001\u7684\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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\u901a\u8fc7\u8bbe\u7f6e\u6b64\u4fe1\u53f7\u7684\u5904\u7406\u51fd\u6570\uff0c\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u9632\u6b62\u7a81\u7136\u65ad\u7535\u5e26\u6765\u7684\u7cfb\u7edf\u635f\u574f\u3002<\/p>\n\n\n\n
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SIGSYS 31 \uff1aBad System Call<\/strong> \u65e0\u6548\u7cfb\u7edf\u8c03\u7528\u4fe1\u53f7\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u5e76\u751f\u6210\u6838\u5fc3\u8f6c\u50a8\u6587\u4ef6\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n
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SIGRTMIN — SIGRTMAX >=34 & <=64\uff1aReal Time min — max<\/strong> \u5b9e\u65f6\u4fe1\u53f7\u3002<\/p>\n\n\n\n
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\u7cfb\u7edf\u9ed8\u8ba4\u5904\u7406\u65b9\u5f0f\uff1a\u7ec8\u6b62\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u5904\u7406\u7a0b\u5e8f\u6d4b\u8bd5\uff0c\u4ee5 SIGRTMIN <\/strong>\u4e3a\u4f8b\uff1a<\/p>\n\n\n\n
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\"\"<\/figure>\n\n\n\n
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<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
\u4fe1\u53f7\u662f\u4e00\u79cd\u91cd\u8981\u7684\u8fdb\u7a0b\u95f4\u901a\u8baf\u65b9\u5f0f\uff0c\u8fd9\u4e9b\u4fe1\u53f7\u6709\u7684\u6709\u7279\u5b9a\u7684\u7528\u6cd5\uff0c\u6709\u7684\u53ef\u4f5c\u4e3a\u6269\u5c55\u548c\u81ea\u5b9a\u4e49\u4f7f\u7528\u3002\u5e76\u4e14\u5927\u591a\u6570\u4fe1\u53f7\u662f\u53ef\u4ee5\u88ab\u91cd\u65b0\u5b9a\u4e49\u5904\u7406\u51fd\u6570\u7684\u3002\u53ea\u6709\u4e24\u4e2a\u4fe1\u53f7 SIGKILL \u548c SIGSTOP \u662f\u4e0d\u53ef\u4ee5\u88ab\u6355\u6349\u3001\u5ffd\u7565\u548c\u963b\u585e\u7684\uff0c\u8fd9\u662f\u4e3a\u4e86\u64cd\u4f5c\u7cfb\u7edf\u66f4\u597d\u7684\u63a7\u5236\u8fdb\u7a0b\u548c\u7cfb\u7edf\u8d44\u6e90\uff0c\u9632\u6b62\u6ee5\u7528\u4fe1\u53f7\uff0c\u786e\u4fdd\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u3002\u6b64\u7bc7\u6587\u7ae0\u9010\u4e00\u89e3\u91ca\u4e00\u4e0b\u6bcf\u4e00\u4e2a\u4fe1\u53f7\u7684\u4f5c\u7528\u3002
\n\u53ef\u4ee5\u7528\u7cfb\u7edf\u6307\u4ee4\uff1akill -l \u67e5\u770b\u7cfb\u7edf\u652f\u6301\u7684\u4fe1\u53f7\uff0c\u8f93\u51fa\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n","protected":false},"author":1,"featured_media":450,"comment_status":"open","ping_status":"open","sticky":false,"template":"single-with-sidebar","format":"standard","meta":{"footnotes":""},"categories":[156,135,131,154],"tags":[237,585,586,230,588,589,584],"class_list":["post-1759","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-c-c","category-linux","category-131","category-154","tag-linux","tag-sighup","tag-sigint","tag-signal","tag-sigstop","tag-sigterm","tag-584"],"_links":{"self":[{"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/posts\/1759","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.madbull.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1759"}],"version-history":[{"count":10,"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/posts\/1759\/revisions"}],"predecessor-version":[{"id":1809,"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/posts\/1759\/revisions\/1809"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.madbull.site\/index.php?rest_route=\/wp\/v2\/media\/450"}],"wp:attachment":[{"href":"https:\/\/www.madbull.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.madbull.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1759"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.madbull.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}