{"id":108353,"date":"2026-09-21T17:41:28","date_gmt":"2026-09-21T09:41:28","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/108353.html"},"modified":"2026-09-21T17:41:28","modified_gmt":"2026-09-21T09:41:28","slug":"%e3%80%90%e7%9f%a5%e8%af%86%e8%ae%b2%e8%a7%a3%e3%80%91-linux%e8%99%9a%e6%8b%9f%e5%9c%b0%e5%9d%80%e7%a9%ba%e9%97%b4%e8%ae%a4%e8%af%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/108353.html","title":{"rendered":"\u3010\u77e5\u8bc6\u8bb2\u89e3\u3011 Linux\u865a\u62df\u5730\u5740\u7a7a\u95f4\u8ba4\u8bc6"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260921094124-6ab0fbc41b821.jpg\" \/><\/p>\n<hr \/>\n<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"%E5%89%8D%E8%A8%80-toc\" style=\"margin-left:0px\">\u524d\u8a00<\/p>\n<p id=\"Part1.%20%E8%99%9A%E6%8B%9F%E5%9C%B0%E5%9D%80%E7%A9%BA%E9%97%B4%E5%9F%BA%E7%A1%80-toc\" style=\"margin-left:0px\">Part1. \u865a\u62df\u5730\u5740\u7a7a\u95f4\u57fa\u7840<\/p>\n<p id=\"Part2.%20fork%20%E4%B8%8E%E5%86%99%E6%97%B6%E6%8B%B7%E8%B4%9D-toc\" style=\"margin-left:0px\">Part2. fork \u4e0e\u5199\u65f6\u62f7\u8d1d<\/p>\n<p id=\"Part2.1.%20fork%E5%AD%90%E8%BF%9B%E7%A8%8B%E5%86%85%E9%83%A8%E8%BF%87%E7%A8%8B-toc\" style=\"margin-left:40px\">Part2.1. fork\u5b50\u8fdb\u7a0b\u5185\u90e8\u8fc7\u7a0b<\/p>\n<p id=\"Part2.2.%20%E5%86%99%E6%97%B6%E6%8B%B7%E8%B4%9D-toc\" style=\"margin-left:40px\">Part2.2. \u5199\u65f6\u62f7\u8d1d<\/p>\n<p id=\"Part2.3.%20%E8%BF%9B%E7%A8%8B%E4%BF%AE%E6%94%B9%E6%95%B0%E6%8D%AE%E8%BF%87%E7%A8%8B-toc\" style=\"margin-left:40px\">Part2.3. \u8fdb\u7a0b\u4fee\u6539\u6570\u636e\u8fc7\u7a0b<\/p>\n<p id=\"Part3.%20%E7%BC%BA%E9%A1%B5%E4%B8%AD%E6%96%AD-toc\" style=\"margin-left:0px\">Part3. \u7f3a\u9875\u4e2d\u65ad<\/p>\n<p id=\"Part4.%20%E5%A0%86%E7%AE%A1%E7%90%86%E4%B8%8Emalloc%E5%BA%95%E5%B1%82-toc\" style=\"margin-left:0px\">Part4. \u5806\u7ba1\u7406\u4e0emalloc\u5e95\u5c42<\/p>\n<p id=\"Part5.%20%E8%99%9A%E6%8B%9F%E5%9C%B0%E5%9D%80%E7%9A%84%E6%84%8F%E4%B9%89-toc\" style=\"margin-left:0px\">Part5. \u865a\u62df\u5730\u5740\u7684\u610f\u4e49<\/p>\n<p id=\"Part6.%20%E6%95%B4%E4%BD%93%E6%80%BB%E7%BB%93-toc\" style=\"margin-left:0px\">Part6. \u6574\u4f53\u603b\u7ed3<\/p>\n<p id=\"Part7.%20%E7%BB%93%E8%AF%AD-toc\" style=\"margin-left:0px\">Part7. \u7ed3\u8bed<\/p>\n<hr id=\"hr-toc\" \/>\n<h2>\u524d\u8a00<\/h2>\n<p>\u00a0 \u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d&#xff0c;\u8ba4\u8bc6<span style=\"color:#fe2c24\">\u865a\u62df\u5730\u5740\u7a7a\u95f4<\/span>\u662f\u8ba4\u8bc6Linux\u5185\u5b58\u7ba1\u7406\u975e\u5e38\u91cd\u8981\u7684\u4e00\u90e8\u5206&#xff0c;\u63a5\u4e0b\u6765\u6765\u8ddf\u968f\u5c0f\u7f16\u7684\u89c6\u89d2\u6765\u770b\u770b\u5427\u3002<\/p>\n<hr \/>\n<p style=\"text-align:center\"><span style=\"color:#4da8ee\">let&#039;s go!!!!!!!!<\/span><\/p>\n<hr \/>\n<h2 id=\"Part1.%20%E8%99%9A%E6%8B%9F%E5%9C%B0%E5%9D%80%E7%A9%BA%E9%97%B4%E5%9F%BA%E7%A1%80\">Part1. \u865a\u62df\u5730\u5740\u7a7a\u95f4\u57fa\u7840<\/h2>\n<p><span style=\"color:#ed7976\">\u4e00\u4e2a\u8fdb\u7a0b\u5bf9\u5e94\u4e00\u4efd\u865a\u62df\u5730\u5740\u7a7a\u95f4\u3002<\/span><\/p>\n<hr \/>\n<p>\u2022 32\u4f4d\u673a\u5668&#xff1a;\u865a\u62df\u5730\u5740<span style=\"color:#b95514\">\u603b\u7a7a\u95f4 2^{32}&#xff0c;\u5927\u5c0f4GB<\/span>\u3002<\/p>\n<p>\u25e6 \u7528\u6237\u7a7a\u95f4&#xff1a;<span style=\"color:#be191c\">0~3G<\/span>&#xff1b;\u5185\u6838\u7a7a\u95f4&#xff1a;<span style=\"color:#be191c\">3G~4G<\/span>\u3002<\/p>\n<p>\u25e6 \u6ce8\u610f&#xff1a;\u5185\u6838\u7a7a\u95f4&#xff0c;<span style=\"color:#ad720d\">\u672c\u8d28\u4e5f\u662f\u62ff\u7528\u6237\u7a7a\u95f4\u7684\u865a\u62df\u5730\u5740\u53bb\u8bbf\u95ee<\/span>\u3002<\/p>\n<p>\u2022 64\u4f4d\u673a\u5668&#xff1a;\u62e5\u6709\u5de8\u5927\u7684\u865a\u62df\u5730\u5740\u8303\u56f4\u3002<\/p>\n<hr \/>\n<p>\u5bf9\u4e8e\u4e00\u4e2a\u53d8\u91cf&#xff1a;<\/p>\n<p>1. \u53d8\u91cf<span style=\"color:#e6b223\">\u62e5\u6709\u7269\u7406\u5730\u5740&#xff1b;\u540c\u65f6&#xff0c;\u5728\u6240\u5c5e\u8fdb\u7a0b\u7684\u865a\u62df\u5730\u5740\u7a7a\u95f4\u5185&#xff0c;\u62e5\u6709\u865a\u62df\u5730\u5740\u3002<\/span><\/p>\n<p>2. \u6bcf\u4e2a\u8fdb\u7a0b<span style=\"color:#1c7331\">\u7ef4\u62a4\u4e00\u5f20\u9875\u8868&#xff1a;\u865a\u62df\u5730\u5740 \u2194 \u7269\u7406\u5730\u5740&#xff0c;\u4e00\u4e00\u6620\u5c04<\/span>\u3002<\/p>\n<p>3. \u5c0f\u7aef\u673a\u5668\u53d6\u53d8\u91cf\u5730\u5740&#xff1a;\u53d6<span style=\"color:#b95514\">4\u5b57\u8282\u4e2d\u6700\u5c0f\u7684\u5730\u5740&#xff1b;\u518d\u7ed3\u5408\u7c7b\u578b\u505a\u504f\u79fb&#xff0c;\u5b8c\u6210\u8bbf\u95ee\u3002<\/span><\/p>\n<hr \/>\n<p>\u865a\u62df\u5730\u5740\u7a7a\u95f4\u7684\u5185\u6838\u6570\u636e\u7ed3\u6784<\/p>\n<p><span style=\"color:#be191c\">mm_struct <\/span>\u7528\u6765\u63cf\u8ff0<span style=\"color:#1c7892\">\u6574\u4e2a\u8fdb\u7a0b\u7684\u865a\u62df\u5730\u5740\u7a7a\u95f4<\/span>\u3002<\/p>\n<p> \u5185\u90e8\u5305\u542b\u82e5\u5e72\u4e2a <span style=\"color:#be191c\">vm_area_struct<\/span>&#xff08;VMA&#xff0c;\u865a\u62df\u5185\u5b58\u533a\u57df&#xff09;&#xff0c;\u6bcf\u4e00\u4e2a\u4ee3\u8868\u4e00\u5757\u533a\u57df&#xff1a;<span style=\"color:#ed7976\">\u4ee3\u7801\u6bb5\u3001\u6570\u636e\u6bb5\u3001\u5806\u3001\u6808\u3002<\/span><\/p>\n<p> \u6bcf\u4e2aVMA\u8bb0\u5f55&#xff1a;<span style=\"color:#1c7892\">start\u3001end&#xff0c;\u4ee3\u8868\u8be5\u533a\u57df\u865a\u62df\u5730\u5740\u7684\u8d77\u6b62&#xff1b;\u8fd8\u6709\u6743\u9650\u3001\u504f\u79fb\u7b49\u5c5e\u6027<\/span>\u3002<\/p>\n<p> <span style=\"color:#1a439c\">\u865a\u62df\u5730\u5740\u7a7a\u95f4\u662f\u8fde\u7eed\u7684&#xff1b;\u4f46\u662f\u5bf9\u5e94\u7684\u7269\u7406\u5185\u5b58\u53ef\u4ee5\u662f\u4e0d\u8fde\u7eed<\/span>\u3002<\/p>\n<hr \/>\n<h2 id=\"Part2.%20fork%20%E4%B8%8E%E5%86%99%E6%97%B6%E6%8B%B7%E8%B4%9D\">Part2. fork \u4e0e\u5199\u65f6\u62f7\u8d1d<\/h2>\n<h3 id=\"Part2.1.%20fork%E5%AD%90%E8%BF%9B%E7%A8%8B%E5%86%85%E9%83%A8%E8%BF%87%E7%A8%8B\">Part2.1. fork\u5b50\u8fdb\u7a0b\u5185\u90e8\u8fc7\u7a0b<\/h3>\n<p>1. \u8c03\u7528<span style=\"color:#ed7976\">fork()&#xff0c;\u5206\u914d\u5185\u6838\u6570\u636e\u7ed3\u6784<\/span>&#xff0c;\u7ed9<span style=\"color:#ad720d\">\u5b50\u8fdb\u7a0b\u590d\u5236&#xff1a;task_struct\u3001\u9875\u8868\u3001\u865a\u62df\u5730\u5740\u7a7a\u95f4<\/span>\u3002<\/p>\n<\/p>\n<p>2. \u7236\u8fdb\u7a0b\u7684<span style=\"color:#e6b223\">\u6570\u636e\u7ed3\u6784\u5185\u5bb9\u62f7\u8d1d\u7ed9\u5b50\u8fdb\u7a0b\u3002<\/span><\/p>\n<\/p>\n<p>3. \u5c06<span style=\"color:#1c7331\">\u5b50\u8fdb\u7a0b\u52a0\u5165\u8fd0\u884c\u961f\u5217<\/span>\u3002<\/p>\n<\/p>\n<p>4. fork\u8fd4\u56de&#xff0c;<span style=\"color:#1c7892\">\u7236\u5b50\u8fdb\u7a0b\u5206\u522b\u7ee7\u7eed\u6267\u884c<\/span>\u3002<\/p>\n<p> \u8fdb\u7a0b\u5177\u5907\u72ec\u7acb\u6027&#xff1a;<span style=\"color:#1a439c\">\u8fdb\u7a0b\u5185\u90e8\u6267\u884c\u7cfb\u7edf\u8c03\u7528&#xff0c;\u90fd\u662f\u64cd\u4f5c\u81ea\u5df1\u8fd9\u4efd\u865a\u62df\u5185\u5b58<\/span>\u3002<\/p>\n<hr \/>\n<h3 id=\"Part2.2.%20%E5%86%99%E6%97%B6%E6%8B%B7%E8%B4%9D\">Part2.2. \u5199\u65f6\u62f7\u8d1d<\/h3>\n<p>fork\u521a\u521b\u5efa\u5b50\u8fdb\u7a0b\u7684\u65f6\u5019&#xff1a;<\/p>\n<p>1. <span style=\"color:#ad720d\">\u7236\u5b50\u9875\u8868\u6307\u5411\u540c\u4e00\u4efd\u7269\u7406\u5185\u5b58<\/span>&#xff0c;\u4ee3\u7801\u6bb5\u3001\u6570\u636e\u6bb5\u5171\u4eab\u7269\u7406\u9875\u3002<\/p>\n<\/p>\n<p>2. \u4f46\u662f\u628a\u8fd9\u4e9b\u9875\u7684<span style=\"color:#1c7892\">\u6743\u9650\u8bbe\u7f6e\u4e3a\u53ea\u8bfb<\/span>\u3002<\/p>\n<\/p>\n<p>3. \u7236\u5b50<span style=\"color:#1a439c\">\u6b64\u65f6\u865a\u62df\u5730\u5740\u5b8c\u5168\u4e00\u6837&#xff0c;\u6620\u5c04\u5230\u76f8\u540c\u7269\u7406\u5185\u5b58<\/span>\u3002<\/p>\n<hr \/>\n<h3 id=\"Part2.3.%20%E8%BF%9B%E7%A8%8B%E4%BF%AE%E6%94%B9%E6%95%B0%E6%8D%AE%E8%BF%87%E7%A8%8B\">Part2.3. \u8fdb\u7a0b\u4fee\u6539\u6570\u636e\u8fc7\u7a0b<\/h3>\n<p>\u2022 CPU<span style=\"color:#1c7892\">\u53d1\u73b0\u8981\u5199\u7684\u9875\u662f\u53ea\u8bfb&#xff0c;\u89e6\u53d1\u7f3a\u9875\u5f02\u5e38<\/span>\u3002<\/p>\n<\/p>\n<p>\u2022 OS\u8bc6\u522b&#xff1a;<span style=\"color:#1a439c\">\u8fd9\u662f\u5199\u65f6\u62f7\u8d1d\u573a\u666f&#xff0c;\u4e0d\u662f\u771f\u7684\u6743\u9650\u9519\u8bef<\/span>\u3002<\/p>\n<\/p>\n<p>\u2022 <span style=\"color:#511b78\">OS\u5206\u914d\u4e00\u4efd\u65b0\u7684\u7269\u7406\u5185\u5b58&#xff0c;\u628a\u539f\u6765\u9875\u7684\u5185\u5bb9\u590d\u5236\u8fc7\u53bb<\/span>\u3002<\/p>\n<\/p>\n<p>\u2022 \u4fee\u6539\u5f53\u524d\u8fdb\u7a0b\u7684\u9875\u8868\u6620\u5c04&#xff0c;\u8ba9<span style=\"color:#1c7331\">\u5f53\u524d\u8fdb\u7a0b\u865a\u62df\u5730\u5740\u6620\u5c04\u5230\u65b0\u7269\u7406\u9875&#xff1b;\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u4f9d\u65e7\u6307\u5411\u8001\u7269\u7406\u9875\u3002<\/span><\/p>\n<\/p>\n<p>\u2022 <span style=\"color:#1a439c\">\u6062\u590d\u9875\u6743\u9650\u4e3a\u53ef\u5199<\/span>&#xff0c;\u5f02\u5e38\u5904\u7406\u5b8c\u6bd5&#xff0c;\u7a0b\u5e8f\u7ee7\u7eed\u8fd0\u884c\u3002<\/p>\n<p> \u53ea\u6709<span style=\"color:#ed7976\">\u53d1\u751f\u5199\u64cd\u4f5c&#xff0c;\u624d\u771f\u6b63\u5206\u914d\u7269\u7406\u5185\u5b58&#xff1b;\u8bfb\u64cd\u4f5c\u4f9d\u65e7\u5171\u4eab&#xff0c;\u4e0d\u4f1a\u62f7\u8d1d\u3002<\/span><\/p>\n<p> fork <span style=\"color:#b95514\">\u4f1a\u8fd4\u56de\u4e24\u4e2aid<\/span>&#xff1a;\u7236\u8fdb\u7a0b\u8fd4\u56de\u5b50\u8fdb\u7a0bpid&#xff0c;\u5b50\u8fdb\u7a0b\u8fd4\u56de0\u3002\u672c\u8d28\u662f<span style=\"color:#e6b223\">\u4e24\u4e2a\u8fdb\u7a0b\u5404\u81ea\u7684\u9875\u8868&#xff0c;\u540c\u4e00\u4e2a\u865a\u62df\u5730\u5740\u8bfb\u5230\u4e0d\u540c\u8fd4\u56de\u503c\u3002<\/span><\/p>\n<hr \/>\n<h2 id=\"Part3.%20%E7%BC%BA%E9%A1%B5%E4%B8%AD%E6%96%AD\">Part3. \u7f3a\u9875\u4e2d\u65ad<\/h2>\n<p>\u865a\u62df\u5730\u5740\u5df2\u7ecf\u5206\u914d&#xff0c;\u4f46<span style=\"color:#b95514\">\u8fd8\u6ca1\u6709\u7ed1\u5b9a\u7269\u7406\u5185\u5b58&#xff0c;\u8bbf\u95ee\u65f6\u89e6\u53d1\u7f3a\u9875\u4e2d\u65ad<\/span>\u3002<\/p>\n<hr \/>\n<p>\u573a\u666f\u4e3e\u4f8b&#xff1a;\u6211\u4eec\u7a0b\u5e8f\u67092G\u4ee3\u7801&#xff0c;\u865a\u62df\u5730\u5740\u4f1a\u5f00\u8f9f2G\u865a\u62df\u7a7a\u95f4&#xff0c;\u4f46\u662f\u7269\u7406\u5185\u5b58\u53ea\u67094G\u3002<span style=\"color:#1c7331\">\u4e0d\u4f1a\u4e00\u6b21\u6027\u628a\u5168\u90e8\u4ee3\u7801\u52a0\u8f7d\u8fdb\u7269\u7406\u5185\u5b58\u3002<\/span><\/p>\n<\/p>\n<p>\u2022 <span style=\"color:#ed7976\">\u8bbf\u95ee\u8fd8\u6ca1\u6709\u6620\u5c04\u7269\u7406\u5185\u5b58\u7684\u865a\u62df\u5730\u5740&#xff0c;\u89e6\u53d1\u7f3a\u9875\u5f02\u5e38<\/span>\u3002<\/p>\n<\/p>\n<p>\u2022 \u64cd\u4f5c\u7cfb\u7edf<span style=\"color:#e6b223\">\u5206\u914d\u7269\u7406\u9875&#xff0c;\u5efa\u7acb\u9875\u8868\u6620\u5c04&#xff0c;\u628a\u78c1\u76d8\u4e0a\u5bf9\u5e94\u7684\u6570\u636e\u8bfb\u5230\u7269\u7406\u5185\u5b58<\/span>&#xff1b;\u5f02\u5e38\u5904\u7406\u5b8c\u6210&#xff0c;\u7a0b\u5e8f\u91cd\u65b0\u6267\u884c\u8fd9\u6761\u6307\u4ee4\u3002<\/p>\n<hr \/>\n<p>\u7f3a\u9875\u7684\u4e24\u79cd\u60c5\u51b5<\/p>\n<p>1. <span style=\"color:#be191c\">\u5408\u6cd5\u7f3a\u9875<\/span>&#xff1a;\u865a\u62df\u5730\u5740\u5c5e\u4e8e\u67d0\u4e2aVMA&#xff08;vm_area_struct&#xff09;&#xff0c;\u53ea\u662f\u8fd8\u6ca1\u6709\u5206\u914d\u7269\u7406\u9875&#xff0c;\u6b63\u5e38\u5206\u914d\u5185\u5b58\u5373\u53ef\u3002<\/p>\n<p>2. <span style=\"color:#be191c\">\u975e\u6cd5\u8bbf\u95ee<\/span>&#xff1a;\u8bbf\u95ee\u7684\u865a\u62df\u5730\u5740<span style=\"color:#1c7331\">\u4e0d\u5728\u4efb\u4f55VMA\u4e4b\u5185&#xff0c;\u5c5e\u4e8e\u91ce\u6307\u9488<\/span>&#xff0c;\u7a0b\u5e8f\u62a5\u6bb5\u9519\u8bef\u3002<\/p>\n<hr \/>\n<p><span style=\"color:#be191c\">\u8fdb\u7a0b\u548c\u5185\u5b58\u89e3\u8026<\/span>&#xff1a;<span style=\"color:#b95514\">\u8fdb\u7a0b\u7684\u4ee3\u7801\u3001\u6570\u636e&#xff0c;\u662f\u57fa\u4e8e\u865a\u62df\u5730\u5740<\/span>\u3002\u6211\u4eec\u53ef\u4ee5<span style=\"color:#ad720d\">\u4e0d\u91ca\u653e\u865a\u62df\u5730\u5740&#xff0c;\u4ec5\u4ec5\u4fee\u6539\u9875\u8868\u6620\u5c04&#xff0c;\u89e3\u9664\u548c\u7269\u7406\u5185\u5b58\u7684\u7ed1\u5b9a<\/span>\u3002\u4e0d\u4f1a\u5f71\u54cd\u8fdb\u7a0b\u8fd0\u884c\u3002<\/p>\n<hr \/>\n<p><span style=\"color:#be191c\">\u8fdb\u7a0b\u9000\u51fa<\/span><\/p>\n<p>\u8fdb\u7a0b\u9000\u51fa\u65f6&#xff1a;<span style=\"color:#b95514\">\u6839\u636e\u9875\u8868&#xff0c;\u628a\u7269\u7406\u5185\u5b58\u7684\u6570\u636e\u5199\u56de\u78c1\u76d8&#xff1b;\u91ca\u653e\u7269\u7406\u5185\u5b58<\/span>\u3002<\/p>\n<hr \/>\n<p>\u5982\u679c\u6709<span style=\"color:#b95514\">\u865a\u62df\u5185\u5b58&#xff0c;\u4e0d\u9700\u8981\u628a\u5168\u90e8\u6570\u636e\u5199\u56de\u78c1\u76d8&#xff1b;<\/span>\u53ea\u9700\u8981\u91ca\u653e\u7269\u7406\u5185\u5b58&#xff0c;\u865a\u62df\u5730\u5740\u672c\u8eab\u4f9d\u65e7\u5b58\u5728\u3002<\/p>\n<hr \/>\n<h2 id=\"Part4.%20%E5%A0%86%E7%AE%A1%E7%90%86%E4%B8%8Emalloc%E5%BA%95%E5%B1%82\">Part4. \u5806\u7ba1\u7406\u4e0emalloc\u5e95\u5c42<\/h2>\n<p>\u5806\u7531<span style=\"color:#be191c\">vm_area_struct<\/span>\u7ba1\u7406\u3002<\/p>\n<hr \/>\n<p>malloc(100)\u5b8c\u6574\u6d41\u7a0b&#xff1a;<\/p>\n<p>1. \u5728<span style=\"color:#b95514\">\u5806\u533a\u5212\u5206\u865a\u62df\u5730\u5740&#xff0c;\u6b64\u65f6\u8fd8\u6ca1\u6709\u7269\u7406\u5185\u5b58<\/span>\u3002<\/p>\n<p>2. \u7528\u6237\u8bbf\u95ee\u8fd9\u5757\u5185\u5b58&#xff0c;<span style=\"color:#1c7892\">\u89e6\u53d1\u7f3a\u9875\u5f02\u5e38<\/span>\u3002<\/p>\n<p>3. \u64cd\u4f5c\u7cfb\u7edf<span style=\"color:#1a439c\">\u5206\u914d\u7269\u7406\u5185\u5b58&#xff0c;\u5efa\u7acb\u6620\u5c04<\/span>\u3002<\/p>\n<p>4. \u5982\u679c<span style=\"color:#ed7976\">\u5806\u7a7a\u95f4\u4e0d\u8db3&#xff0c;\u5411OS\u7533\u8bf7\u66f4\u591a\u865a\u62df\u5730\u5740<\/span>\u3002<\/p>\n<hr \/>\n<p>free\u4e0d\u4f1a\u628a\u865a\u62df\u5730\u5740\u8fd8\u7ed9\u64cd\u4f5c\u7cfb\u7edf\u3002\u53ea\u662f<span style=\"color:#ad720d\">\u6807\u8bb0\u8fd9\u5757\u5806\u7a7a\u95f4\u4e3a\u7a7a\u95f2<\/span>&#xff0c;\u4ea4\u7531malloc\u5185\u90e8\u7ba1\u7406\u3002<span style=\"color:#b95514\">\u5806\u8fc7\u5927\u624d\u4f1a\u89e6\u53d1\u5806\u56de\u7f29&#xff0c;\u628a\u90e8\u5206\u865a\u62df\u5730\u5740\u8fd8\u7ed9OS\u3002<\/span><\/p>\n<hr \/>\n<h2 id=\"Part5.%20%E8%99%9A%E6%8B%9F%E5%9C%B0%E5%9D%80%E7%9A%84%E6%84%8F%E4%B9%89\">Part5. \u865a\u62df\u5730\u5740\u7684\u610f\u4e49<\/h2>\n<p>1. <span style=\"color:#be191c\">\u5730\u5740\u9694\u79bb\u4fdd\u62a4<\/span>&#xff1a;\u6bcf\u4e2a\u8fdb\u7a0b\u62e5\u6709<span style=\"color:#e6b223\">\u72ec\u7acb\u865a\u62df\u5730\u5740\u7a7a\u95f4&#xff0c;\u8fdb\u7a0b\u4e4b\u95f4\u4e92\u4e0d\u5e72\u6270<\/span>\u3002<\/p>\n<\/p>\n<p>2. <span style=\"color:#be191c\">\u5185\u5b58\u7ba1\u7406<\/span>&#xff1a;<span style=\"color:#1c7892\">\u865a\u62df\u5730\u5740\u8fde\u7eed&#xff0c;\u7269\u7406\u5185\u5b58\u788e\u7247\u5316\u4e5f\u6ca1\u5173\u7cfb<\/span>&#xff1b;OS\u53ef\u4ee5\u628a\u4e0d\u5e38\u7528\u5185\u5b58\u7f6e\u6362\u5230\u78c1\u76d8\u3002<\/p>\n<\/p>\n<p>3. <span style=\"color:#be191c\">\u6743\u9650\u7ba1\u63a7<\/span>&#xff1a;\u9875\u8868\u4e2d<span style=\"color:#1c7331\">\u8bbe\u7f6e\u9875\u6743\u9650&#xff0c;\u5b9e\u73b0\u53ea\u8bfb\u3001\u53ef\u8bfb\u53ef\u5199<\/span>\u3002\u8bbf\u95ee\u8fdd\u53cd\u6743\u9650\u76f4\u63a5\u89e6\u53d1\u5f02\u5e38\u3002<\/p>\n<\/p>\n<p>4. <span style=\"color:#be191c\">\u5ef6\u8fdf\u5206\u914d\u7269\u7406\u5185\u5b58<\/span>&#xff1a;\u53ea\u6709<span style=\"color:#1a439c\">\u771f\u6b63\u8bbf\u95ee\u7684\u65f6\u5019&#xff0c;\u624d\u5206\u914d\u7269\u7406\u5185\u5b58<\/span>\u3002fork\u5199\u65f6\u62f7\u8d1d\u4e5f\u662f\u57fa\u4e8e\u8fd9\u4e2a\u601d\u60f3&#xff0c;\u8282\u7701\u5185\u5b58\u3002<\/p>\n<hr \/>\n<h2 id=\"Part6.%20%E6%95%B4%E4%BD%93%E6%80%BB%E7%BB%93\">Part6. \u6574\u4f53\u603b\u7ed3<\/h2>\n<p>1. <span style=\"color:#be191c\">\u865a\u62df\u5730\u5740\u7a7a\u95f4<\/span>&#xff1a;\u903b\u8f91\u4e0a\u8fde\u7eed&#xff1b;\u7269\u7406\u5185\u5b58\u53ef\u4ee5\u79bb\u6563\u3002<\/p>\n<\/p>\n<p>2. <span style=\"color:#be191c\">\u9875\u8868<\/span>&#xff1a;\u5b8c\u6210\u865a\u62df\u5730\u5740\u2192\u7269\u7406\u5730\u5740\u7684\u7ffb\u8bd1&#xff0c;\u540c\u65f6\u8bb0\u5f55\u9875\u6743\u9650\u3002<\/p>\n<\/p>\n<p>3.<span style=\"color:#be191c\"> fork<\/span>&#xff1a;\u521d\u671f\u7236\u5b50\u5171\u4eab\u7269\u7406\u9875&#xff0c;\u6807\u8bb0\u53ea\u8bfb&#xff1b;\u5199\u65f6\u62f7\u8d1d&#xff0c;\u53d1\u751f\u5199\u64cd\u4f5c\u624d\u590d\u5236\u7269\u7406\u9875\u3002<\/p>\n<\/p>\n<p>4. <span style=\"color:#be191c\">\u7f3a\u9875\u4e2d\u65ad<\/span>&#xff1a;\u865a\u62df\u5730\u5740\u5df2\u5206\u914d&#xff0c;\u65e0\u7269\u7406\u5185\u5b58&#xff0c;\u8bbf\u95ee\u89e6\u53d1\u5f02\u5e38&#xff1b;OS\u5206\u914d\u7269\u7406\u5185\u5b58&#xff0c;\u52a0\u8f7d\u6570\u636e\u3002<\/p>\n<\/p>\n<p>5. <span style=\"color:#be191c\">malloc<\/span>&#xff1a;\u5148\u5206\u914d\u865a\u62df\u5730\u5740&#xff0c;\u771f\u6b63\u8bbf\u95ee\u624d\u5206\u914d\u7269\u7406\u5185\u5b58&#xff1b;free\u53ea\u505a\u5806\u5185\u90e8\u6807\u8bb0&#xff0c;\u4e0d\u4e00\u5b9a\u91ca\u653e\u865a\u62df\u5730\u5740\u7ed9\u64cd\u4f5c\u7cfb\u7edf\u3002<\/p>\n<\/p>\n<p>6. <span style=\"color:#be191c\">VMA&#xff08;vm_area_struct&#xff09;<\/span>&#xff1a;\u7ba1\u7406\u5404\u4e2a\u6bb5&#xff08;\u4ee3\u7801\u6bb5\u3001\u6570\u636e\u6bb5\u3001\u5806\u3001\u6808&#xff09;\u7684\u865a\u62df\u5730\u5740\u8303\u56f4\u4e0e\u6743\u9650\u3002<\/p>\n<hr \/>\n<h2 id=\"Part7.%20%E7%BB%93%E8%AF%AD\" style=\"background-color:transparent\">Part7. \u7ed3\u8bed<\/h2>\n<p> <span style=\"color:#494949\">\u00a0\u00a0\u8fd9\u7bc7\u6587\u7ae0\u6211\u4eec\u8ba4\u8bc6\u5e76\u77e5\u9053\u4e86Linux\u865a\u62df\u5730\u5740\u7a7a\u95f4&#xff0c;\u63a5\u4e0b\u6765&#xff0c;\u5c0f\u7f16\u8fd8\u4f1a\u5e26\u6765\u66f4\u591aLinux\u76f8\u5173\u7684\u77e5\u8bc6&#xff0c;\u656c\u8bf7\u671f\u5f85~<\/span><\/p>\n<p>\u00a0\u6700\u540e&#xff0c;\u795d\u5927\u5bb6\u53ef\u4ee5&#xff1a;<span style=\"color:#fe2c24\">\u6625\u98ce\u5f97\u610f\u9a6c\u8e44\u75be&#xff0c;\u4e00\u65e5\u770b\u5c3d\u957f\u5b89\u82b1&#xff01;<\/span><\/p>\n<p>\u00a0\u6700\u540e\u7684\u6700\u540e&#xff0c;\u8981\u662f\u89c9\u5f97\u672c\u6587\u8fd8\u53ef\u4ee5\u7684\u8bdd&#xff0c;\u53ef\u4ee5\u70b9\u70b9\u8d5e&#xff0c;\u5173\u6ce8\u5c0f\u7f16\u4e00\u6ce2&#xff0c;<span style=\"color:#fe2c24\">\u8c22\u8c22\u5927\u5bb6&#xff01;~<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u5f55<br \/>\n\u524d\u8a00<br \/>\nPart1. \u865a\u62df\u5730\u5740\u7a7a\u95f4\u57fa\u7840<br \/>\nPart2. fork \u4e0e\u5199\u65f6\u62f7\u8d1d<br \/>\nPart2.1. fork\u5b50\u8fdb\u7a0b\u5185\u90e8\u8fc7\u7a0b<br \/>\nPart2.2. \u5199\u65f6\u62f7\u8d1d<br \/>\nPart2.3. \u8fdb\u7a0b\u4fee\u6539\u6570\u636e\u8fc7\u7a0b<br \/>\nPart3. \u7f3a\u9875\u4e2d\u65ad<br \/>\nPart4. \u5806\u7ba1\u7406\u4e0emalloc\u5e95\u5c42<br \/>\nPart5. \u865a\u62df\u5730\u5740\u7684\u610f\u4e49<br \/>\nPart6. \u6574\u4f53\u603b\u7ed3<br \/>\nPart7. \u7ed3\u8bed \u524d\u8a00 \u5728Linux\u64cd\u4f5c\u7cfb\u7edf\u4e2d&#xff0c;\u8ba4\u8bc6\u865a\u62df\u5730\u5740\u7a7a\u95f4\u662f\u8ba4\u8bc6Linux\u5185\u5b58\u7ba1\u7406\u975e\u5e38\u91cd\u8981\u7684\u4e00\u90e8\u5206&#xff0c;\u63a5\u4e0b\u6765\u6765\u8ddf\u968f\u5c0f\u7f16\u7684<\/p>\n","protected":false},"author":2,"featured_media":108352,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,4597],"topic":[],"class_list":["post-108353","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-linux","tag-4597"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010\u77e5\u8bc6\u8bb2\u89e3\u3011 Linux\u865a\u62df\u5730\u5740\u7a7a\u95f4\u8ba4\u8bc6 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/108353.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010\u77e5\u8bc6\u8bb2\u89e3\u3011 Linux\u865a\u62df\u5730\u5740\u7a7a\u95f4\u8ba4\u8bc6 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u76ee\u5f55 \u524d\u8a00 Part1. \u865a\u62df\u5730\u5740\u7a7a\u95f4\u57fa\u7840 Part2. fork \u4e0e\u5199\u65f6\u62f7\u8d1d Part2.1. fork\u5b50\u8fdb\u7a0b\u5185\u90e8\u8fc7\u7a0b Part2.2. \u5199\u65f6\u62f7\u8d1d Part2.3. \u8fdb\u7a0b\u4fee\u6539\u6570\u636e\u8fc7\u7a0b Part3. \u7f3a\u9875\u4e2d\u65ad Part4. \u5806\u7ba1\u7406\u4e0emalloc\u5e95\u5c42 Part5. \u865a\u62df\u5730\u5740\u7684\u610f\u4e49 Part6. \u6574\u4f53\u603b\u7ed3 Part7. \u7ed3\u8bed \u524d\u8a00 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name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/108353.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/108353.html\",\"name\":\"\u3010\u77e5\u8bc6\u8bb2\u89e3\u3011 Linux\u865a\u62df\u5730\u5740\u7a7a\u95f4\u8ba4\u8bc6 - 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