{"id":9457,"date":"2025-04-18T17:23:44","date_gmt":"2025-04-18T09:23:44","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/9457.html"},"modified":"2025-04-18T17:23:44","modified_gmt":"2025-04-18T09:23:44","slug":"%e3%80%90%e9%93%b6%e6%b2%b3%e9%ba%92%e9%ba%9f%e9%ab%98%e7%ba%a7%e6%9c%8d%e5%8a%a1%e5%99%a8%e6%93%8d%e4%bd%9c%e7%b3%bb%e7%bb%9f%e5%ae%9e%e4%be%8b%e3%80%91tcp_mem%e5%88%86%e6%9e%90%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/9457.html","title":{"rendered":"\u3010\u94f6\u6cb3\u9e92\u9e9f\u9ad8\u7ea7\u670d\u52a1\u5668\u64cd\u4f5c\u7cfb\u7edf\u5b9e\u4f8b\u3011tcp_mem\u5206\u6790\u5904\u7406\u5168\u8fc7\u7a0b&amp;\u5185\u6838\u53c2\u6570\u8c03\u4f18\u53c2\u8003"},"content":{"rendered":"<p>\u4e86\u89e3\u66f4\u591a\u94f6\u6cb3\u9e92\u9e9f\u64cd\u4f5c\u7cfb\u7edf\u5168\u65b0\u4ea7\u54c1&#xff0c;\u8bf7\u70b9\u51fb\u8bbf\u95ee<\/p>\n<p>\u9e92\u9e9f\u8f6f\u4ef6\u4ea7\u54c1\u4e13\u533a&#xff1a;https:\/\/product.kylinos.cn<\/p>\n<p>\u5f00\u53d1\u8005\u4e13\u533a&#xff1a;https:\/\/developer.kylinos.cn<\/p>\n<p>\u6587\u6863\u4e2d\u5fc3&#xff1a;https:\/\/document.kylinos.cn<\/p>\n<h3 style=\"text-align:justify\">\u73b0\u8c61\u63cf\u8ff0<\/h3>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u7cfb\u7edf\u4e2d\u51fa\u73b0\u5927\u91cf\u7684TCP: out of memory &#8212; consider tuning tcp_mem\u7684\u62a5\u9519&#xff0c;\u540c\u65f6\u6709\u591a\u6b21call trace \u4ea7\u751f\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092341-68021a1d15d79.png\" \/><\/p>\n<p style=\"text-align:center\">\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092341-68021a1d2f3c0.png\" \/><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092341-68021a1db2684.png\" \/><\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092341-68021a1dcccb5.png\" \/><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092341-68021a1de85e3.png\" \/><\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092342-68021a1e10037.png\" \/><\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u6839\u636e\u63d0\u793a \u67e5\u8be2\u5185\u6838\u53c2\u6570&#xff0c;net.ipv4.tcp_mem &#061; 25401 33869 50802 \u503c\u7684\u5f88\u5c0f&#xff0c;\u51fa\u73b0\u6b64\u95ee\u9898\u65f6&#xff0c;cpu\u8d1f\u8f7d\u5f88\u9ad8&#xff0c;tcp\u8fde\u63a5\u65ad\u7eed&#xff0c;\u8bf7\u6c42\u5904\u7406\u4e0d\u53ca\u65f6\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">\n<h3 style=\"text-align:justify\">\u73b0\u8c61\u5206\u6790<\/h3>\n<h4 style=\"margin-left:.0001pt;text-align:justify\">tcp_mem\u62a5\u9519\u5206\u6790<\/h4>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u67e5\u770b\u524d\u7ebf\u6536\u96c6\u7684sosreport\u65e5\u5fd7&#xff0c;\u5bf9\u4e8e\u9891\u7e41\u51fa\u73b0<span style=\"background-color:#d9d9d9\">TCP: out of memory &#8212; consider tuning tcp_mem<\/span>\u7684\u9519\u8bef&#xff0c;\u901a\u5e38\u8868\u660e\u7cfb\u7edfTCP\u7f13\u51b2\u533a\u5df2\u6ee1&#xff0c;\u65e0\u6cd5\u7ee7\u7eed\u7533\u8bf7\u5bf9\u5e94\u7684\u7f13\u5b58\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">net.ipv4_tcp_mem\u548c\u4e1a\u52a1\u9700\u6c42\u4e0d\u7b26&#xff0c;\u5bf9\u8fd9\u79cd\u60c5\u51b5\u6211\u4eec\u901a\u5e38\u4f1a\u8c03\u6574\u5176\u6570\u503c\u3002\u4f46\u5bf9\u5f53\u524d\u95ee\u9898\u6211\u4eec\u53d1\u73b0\u4e86\u4e00\u4e2a\u5f02\u5e38\u7684\u5730\u65b9&#xff0c;net.ipv4_tcp_mem\u7684\u6570\u503c\u5728\u4e0d\u624b\u52a8\u8bbe\u5b9a\u7684\u60c5\u51b5\u4e0b\u7cfb\u7edf\u521d\u59cb\u5316\u662f\u548c\u673a\u5668\u603b\u5185\u5b58\u5927\u5c0f\u76f8\u5173\u7684&#xff0c;\u67e5\u770b\u672c\u673a\u5185\u5b58\u5927\u5c0f\u4e3a128G&#xff0c;\u5bf9\u6bd4\u4e0a\u8ff0\u7684tcp_mem\u7684\u6570\u503c\u660e\u663e\u4e0d\u7b26\u3002<\/p>\n<p style=\"text-align:center\">\n<p style=\"margin-left:.0001pt;text-align:justify\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092342-68021a1e2b76c.png\" \/>\u7ee7\u7eed\u67e5\u770b\u7cfb\u7edf\u5185\u6838\u7248\u672c&#xff0c;\u53d1\u73b0\u4e3aSP2-4.19.90-24.4\u5185\u6838&#xff0c;\u8be5\u7248\u672c\u5185\u6838\u5b58\u5728\u5185\u5b58managed\u7edf\u8ba1\u9519\u4f4d\u8fd9\u4e00\u5df2\u77e5\u95ee\u9898&#xff0c;\u8be5\u95ee\u9898\u4f1a\u9020\u6210\u7cfb\u7edf\u5185\u5b58\u788e\u7247\u5316\u3001\u5bb9\u6613\u89e6\u53d1OOM\u3001tcp_mem\u521d\u59cb\u5316\u5f02\u5e38\u7b49\u6545\u969c&#xff0c;\u4e0b\u9762\u6211\u4eec\u8be6\u7ec6\u8fdb\u884c\u8bf4\u660e\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092342-68021a1e3deee.png\" \/><\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">\n<h4 style=\"margin-left:.0001pt;text-align:justify\">\u00a0\u5185\u5b58managed\u7edf\u8ba1\u9519\u4f4dbug\u8bf4\u660e<\/h4>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u94f6\u6cb3\u9e92\u9e9f\u670d\u52a1\u5668\u7cfb\u7edf\u5185\u6838\u57fa\u4e8eopeneuler\u5185\u6838\u5f00\u53d1&#xff0c;\u800copeneuler\u5185\u6838\u5728\u4f18\u5316\u5185\u5b58\u65f6\u5f15\u5165\u4e86\u4e00\u4e2abug(commit eb761d6521c32c006a4987260394a61c6684fb35: mm: parallelize deferred struct page initialization within each node)&#xff0c;\u8be5bug\u4f1a\u5bfc\u81f4zone\u7684managed_pages\u7edf\u8ba1\u51fa\u73b0\u9519\u4f4d\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u5177\u4f53\u67e5\u770b\u7cfb\u7edf\u7684\/proc\/zoneinfo\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0Node 0 Normal\u533a\u57df\u7684managed\u51fa\u73b0\u7edf\u8ba1\u5f02\u5e38&#xff0c;\u5176managed\u8fdc\u5c0f\u4e8espanned\u3001present&#xff1b;\u800cNode 0 Movable\u533a\u57df\u8fd9\u4e2a\u672c\u4e0d\u8be5\u7ba1\u7406\u5185\u5b58\u7684\u533a\u57dfmanaged\u5f02\u5e38\u7684\u5927&#xff0c;\u5bf9\u5e94\u7684\u5185\u5b58\u56de\u6536\u6c34\u4f4d\u4e5f\u6781\u9ad8\u3002\u5176\u4f59\u51e0\u4e2aNode\u7684\u60c5\u51b5\u4e5f\u662f\u5982\u6b64&#xff0c;\u8fd9\u5c31\u662f\u4e0a\u8ff0BUG\u5bfc\u81f4\u7684managed_pages\u7edf\u8ba1\u51fa\u73b0\u9519\u4f4d\u7684\u95ee\u9898\u4e86\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092342-68021a1e4cede.png\" \/><\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u800czone\u7684managed_pages\u7edf\u8ba1\u51fa\u73b0\u9519\u4f4d\u4f1a\u8fdb\u4e00\u6b65\u9020\u6210\u5176\u4ed6\u5f71\u54cd&#xff0c;\u4e00\u662f\u5f71\u54cd\u5404\u4e2azone\u7684\u5185\u5b58\u56de\u6536\u6c34\u4f4d\u7684\u8ba1\u7b97&#xff0c;\u56e0\u4e3a\u5185\u5b58\u56de\u6536\u6c34\u4f4d\u662f\u6309\u7167\u5404\u4e2azone managed_pages\u7684\u6bd4\u4f8b\u6765\u5206\u914d\u7684&#xff0c;zone Normal\u539f\u672c\u7ba1\u7406\u7684\u5185\u5b58\u88ab\u7edf\u8ba1\u5230zone Movable\u540e&#xff0c;\u53ef\u4ee5\u770b\u5230\u5176\u5185\u5b58\u56de\u6536\u6c34\u4f4dmin\/low\/high\u53d8\u6210\u4e8627\/59\/91\u8fd9\u4e2a\u6781\u5c0f\u7684\u503c&#xff0c;\u8fd9\u53c8\u5f71\u54cd\u4e86\u540e\u7eed\u7cfb\u7edf\u7684\u5185\u5b58\u56de\u6536\u3002linux\u7cfb\u7edf\u7684\u5185\u5b58\u56de\u6536\u662f\u5f53\u5bf9\u5e94zone\u7684\u5269\u4f59\u5185\u5b58\u4f4e\u4e8elow\u6c34\u4f4d\u88ab\u89e6\u53d1&#xff0c;\u76f4\u81f3\u56de\u6536\u5230high\u6c34\u4f4d\u505c\u6b62&#xff0c;\u8fd9\u4e48\u5c0f\u7684\u5185\u5b58\u56de\u6536\u6c34\u4f4d\u5c06\u5bfc\u81f4\u5373\u4f7f\u89e6\u53d1\u5185\u5b58\u56de\u6536\u4e5f\u56de\u6536\u4e0d\u4e86\u591a\u5c11\u5185\u5b58\u5c31\u505c\u6b62\u4e86&#xff0c;\u9ad8\u538b\u529b\u4e0bzone Normal\u5c06\u59cb\u7ec8\u4fdd\u6301\u5728\u4e00\u4e2a\u51e0\u4e4e\u6ca1\u6709\u7a7a\u95f2\u5185\u5b58\u53ef\u4ee5\u4f7f\u7528\u7684\u60c5\u51b5\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u4e8c\u662fnet.ipv4.tcp_mem\u7684\u521d\u59cb\u5316\u4e5f\u662f\u53ea\u8003\u8651DMA\/DMA32\/Normal\u4e09\u4e2a\u533a\u57df\u7684managed\u5185\u5b58\u548chigh\u6c34\u4f4d\u60c5\u51b5&#xff0c;net.ipv4.tcp_mem\u7b49\u4e8e\u8fd9\u4e09\u4e2a\u533a\u57df\u7684<span style=\"background-color:#d9d9d9\">(managed-high)\/16\/4*3<\/span>\u3002\u548c\u4e0a\u9762\u7684\u60c5\u51b5\u7c7b\u4f3c&#xff0c;zone Normal\u539f\u672c\u7ba1\u7406\u7684\u5185\u5b58\u88ab\u7edf\u8ba1\u5230zone Movable\u540e&#xff0c;\u7cfb\u7edf\u7684net.ipv4.tcp_mem\u521d\u59cb\u5316\u6570\u503c\u4e5f\u5c06\u53d8\u5f97\u5f02\u5e38\u7684\u4f4e\u3002\u8fd9\u4e5f\u5c31\u4f7f\u5f97\u540e\u7eed\u6709\u5927\u91cftcp\u94fe\u63a5\u65f6&#xff0c;tcp_mem\u4e0d\u8db3\u3001\u65e0\u6cd5\u5206\u914d\u5185\u5b58&#xff0c;\u4f7f\u5f97tcp\u94fe\u63a5\u7684\u7a33\u5b9a\u6027\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u5bf9\u4e8e\u8fd9\u4e2abug\u76ee\u524d\u9e92\u9e9f\u8f6f\u4ef6\u53caopeneuler\u90fd\u5df2\u5728\u5b98\u7f51\u53d1\u5e03\u4e86\u5185\u6838\u4fee\u590d\u516c\u544a&#xff0c;\u94f6\u6cb3\u9e92\u9e9f\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u5728SP1 23.30\u3001SP2 25.22\u7248\u672c\u5f97\u5230\u4fee\u590d&#xff0c;SP3\u5185\u6838\u4e0d\u5b58\u5728\u8fd9\u4e2aBUG\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">\n<h4 style=\"margin-left:.0001pt;text-align:justify\">call trace\u62a5\u9519\u5206\u6790<\/h4>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u95ee\u9898\u53d1\u751f\u65f6&#xff0c;\u7cfb\u7edf\u65e5\u5fd7\u4e2d\u9664\u4e86\u9664\u4e86\u6709\u5927\u91cf\u7684TCP: out of memory &#8212; consider tuning tcp_mem\u7684\u62a5\u9519&#xff0c;\u540c\u65f6\u6709\u591a\u6b21call trace \u4ea7\u751f\u3002<\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u901a\u8fc7\u6574\u7406\u8fd9\u4e9bcall trace\u65e5\u5fd7\u6211\u4eec\u53d1\u73b0\u65e5\u5fd7\u96c6\u4e2d\u51fa\u73b0&#xff0c;\u6240\u6709call trace\u65e5\u5fd7\u6253\u5370\u90fd\u662fhung_task_timeout_secs\u00a0120s\u8d85\u65f6\u89e6\u53d1\u7684\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092342-68021a1e620f5.png\" \/><\/p>\n<p style=\"margin-left:.0001pt;text-align:justify\">\u67e5\u770b\u8fd9\u4e9bcall trace\u65e5\u5fd7\u7684\u5185\u5bb9\u5982\u4e0b\u6240\u793a&#xff1a;<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250418092342-68021a1ea2b38.png\" \/><\/p>\n<p style=\"margin-left:.0001pt;text-align:left\">\u6839\u636e\u4e0a\u8ff0\u4fe1\u606f&#xff0c;\u6211\u4eec\u53ef\u4ee5\u53d1\u73b0\u8fd9\u4e9bcall 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