{"id":66424,"date":"2026-01-26T19:33:53","date_gmt":"2026-01-26T11:33:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/66424.html"},"modified":"2026-01-26T19:33:53","modified_gmt":"2026-01-26T11:33:53","slug":"openeuler-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%95%e6%9c%ba%e5%ae%9a%e4%bd%8d%e6%b5%81%e7%a8%8b%ef%bc%88%e5%90%ab%e9%94%99%e8%af%af%e4%bd%8d%e7%bd%ae%e6%8e%92%e6%9f%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/66424.html","title":{"rendered":"OpenEuler \u670d\u52a1\u5668\u5b95\u673a\u5b9a\u4f4d\u6d41\u7a0b\uff08\u542b\u9519\u8bef\u4f4d\u7f6e\u6392\u67e5\uff09"},"content":{"rendered":"<p>\u4e00\u3001\u5b9a\u4f4d\u524d\u51c6\u5907&#xff1a;\u73b0\u8c61\u786e\u8ba4\u4e0e\u57fa\u7840\u4fe1\u606f\u6536\u96c6<br \/>\n\u5728\u5f00\u5c55\u6df1\u5165\u5206\u6790\u524d&#xff0c;\u9700\u5148\u660e\u786e\u5b95\u673a\u5177\u4f53\u8868\u73b0&#xff0c;\u6536\u96c6\u57fa\u7840\u73af\u5883\u4fe1\u606f&#xff0c;\u4e3a\u540e\u7eed\u5b9a\u4f4d\u63d0\u4f9b\u4f9d\u636e&#xff1a;<\/p>\n<li>\u7f51\u7edc\u8fde\u901a\u6027\u6d4b\u8bd5<\/li>\n<ul>\n<li>\u64cd\u4f5c&#xff1a;\u6267\u884c ping \u670d\u52a1\u5668IP \u547d\u4ee4&#xff0c;\u89c2\u5bdf\u662f\u5426\u80fd\u6b63\u5e38\u54cd\u5e94\u3002<\/li>\n<li>\u5224\u5b9a&#xff1a;\u80fd Ping \u901a\u4f46\u65e0\u6cd5 SSH \u8fde\u63a5 \u2192 \u5927\u6982\u7387\u4e3a\u7cfb\u7edf Hang&#xff08;\u6b7b\u673a&#xff09;&#xff1b;Ping \u4e0d\u901a \u2192 \u53ef\u80fd\u662f\u5185\u6838\u5d29\u6e83\u6216\u7f51\u7edc\u6808\u6b7b\u9501\u3002<\/li>\n<\/ul>\n<li>\u5e26\u5916\u7ba1\u7406\u5361\u68c0\u67e5<\/li>\n<ul>\n<li>\u64cd\u4f5c&#xff1a;\u767b\u5f55 BMC\/IPMI \u8fdc\u7a0b\u7ba1\u7406\u754c\u9762&#xff0c;\u67e5\u770b\u786c\u4ef6\u72b6\u6001&#xff08;\u5982 CPU \u6e29\u5ea6\u3001\u7535\u6e90\u3001\u98ce\u6247\u3001\u5185\u5b58\u7b49&#xff09;&#xff0c;\u662f\u5426\u5b58\u5728\u786c\u4ef6\u62a5\u8b66\u63d0\u793a\u3002<\/li>\n<\/ul>\n<li>\u672c\u5730\u7ec8\u7aef\u72b6\u6001\u786e\u8ba4<\/li>\n<ul>\n<li>\u64cd\u4f5c&#xff1a;\u82e5\u670d\u52a1\u5668\u8fde\u63a5\u663e\u793a\u5668&#xff0c;\u89c2\u5bdf\u5b95\u673a\u65f6\u5c4f\u5e55\u662f\u5426\u663e\u793a\u62a5\u9519\u4fe1\u606f&#xff08;\u5982 Kernel panic&#xff08;\u5185\u6838\u5d29\u6e83&#xff09;\u3001Oops&#xff08;\u5185\u6838\u8b66\u544a&#xff09;\u7b49&#xff09;\u3002<\/li>\n<\/ul>\n<li>\u57fa\u7840\u73af\u5883\u4fe1\u606f\u8bb0\u5f55<\/li>\n<ul>\n<li>\u8bb0\u5f55\u670d\u52a1\u5668\u786c\u4ef6\u914d\u7f6e&#xff08;CPU \u578b\u53f7\u3001\u5185\u5b58\u5bb9\u91cf\u3001\u78c1\u76d8\u7c7b\u578b \/ \u6570\u91cf&#xff09;\u3001OpenEuler \u7cfb\u7edf\u7248\u672c&#xff08;\u6267\u884c cat \/etc\/openEuler-release \u83b7\u53d6&#xff09;\u3001\u8fd1\u671f\u662f\u5426\u8fdb\u884c\u8fc7\u7cfb\u7edf\u66f4\u65b0 \/ \u8f6f\u4ef6\u5b89\u88c5 \/ \u914d\u7f6e\u4fee\u6539\u3002<br \/>\n\u4e8c\u3001\u901a\u7528\u6392\u67e5&#xff1a;\u7cfb\u7edf\u65e5\u5fd7\u5206\u6790&#xff08;\u6838\u5fc3\u6b65\u9aa4&#xff09;<br \/>\n\u65e0\u8bba\u5b95\u673a\u8868\u73b0\u4e3a \u201c\u91cd\u542f\u201d \u6216 \u201c\u6b7b\u673a\u201d&#xff0c;\u5747\u9700\u5148\u901a\u8fc7\u7cfb\u7edf\u65e5\u5fd7\u6392\u67e5\u5b95\u673a\u524d\u5f02\u5e38\u8bb0\u5f55&#xff0c;\u5b9a\u4f4d\u6f5c\u5728\u9519\u8bef\u4f4d\u7f6e\u3002<br \/>\n2.1 \u5185\u6838\u65e5\u5fd7\u4e0e\u7cfb\u7edf\u6d88\u606f\u65e5\u5fd7\u6392\u67e5<br \/>\n2.1.1 \u67e5\u770b\u5185\u6838\u7f13\u51b2\u533a\u4fe1\u606f&#xff08;dmesg&#xff09;<\/li>\n<li>\u547d\u4ee4&#xff1a;<\/li>\n<\/ul>\n<h2>\u67e5\u770b\u6700\u8fd1100\u6761\u5185\u6838\u65e5\u5fd7&#xff08;\u91cd\u70b9\u5173\u6ce8\u5b95\u673a\u524d\u8bb0\u5f55&#xff09;<\/h2>\n<p>dmesg | tail -n 100<\/p>\n<h2>\u7b5b\u9009\u5173\u952e\u9519\u8bef\u4fe1\u606f<\/h2>\n<p>dmesg | grep -iE \u201cerror|warn|fail|panic|oops|out of memory|i\/o error\u201d<\/p>\n<ul>\n<li>\u6838\u5fc3\u5173\u6ce8\u5173\u952e\u8bcd\u53ca\u5bf9\u5e94\u9519\u8bef\u4f4d\u7f6e&#xff1a;\n<ul>\n<li>OOM Killer \u2192 \u5185\u5b58\u4e0d\u8db3&#xff0c;\u7cfb\u7edf\u5f3a\u5236\u7ec8\u6b62\u8fdb\u7a0b\u5bfc\u81f4\u5b95\u673a&#xff1b;<\/li>\n<li>I\/O error \u2192 \u78c1\u76d8\u8bfb\u5199\u6545\u969c&#xff08;\u5982\u574f\u9053\u3001\u7ebf\u7f06\u677e\u52a8\u3001\u63a7\u5236\u5668\u5f02\u5e38&#xff09;&#xff1b;<\/li>\n<li>BUG\/WARNING \u2192 \u5185\u6838\u4ee3\u7801\u65ad\u8a00\u89e6\u53d1&#xff0c;\u53ef\u80fd\u662f\u5185\u6838\u6f0f\u6d1e\u6216\u9a71\u52a8\u51b2\u7a81&#xff1b;<\/li>\n<li>task blocked for more than 120 seconds \u2192 \u8fdb\u7a0b\u6b7b\u9501\u6216\u8d44\u6e90\u8017\u5c3d&#xff08;\u5bfc\u81f4\u7cfb\u7edf Hang&#xff09;&#xff1b;<\/li>\n<li>Kernel panic\/Oops \u2192 \u5185\u6838\u5d29\u6e83&#xff0c;\u9700\u8fdb\u4e00\u6b65\u5206\u6790\u8c03\u7528\u94fe\u3002<br \/>\n2.1.2 \u67e5\u770b\u7cfb\u7edf\u6d88\u606f\u65e5\u5fd7&#xff08;messages\/journalctl&#xff09;<\/li>\n<\/ul>\n<\/li>\n<li>\u547d\u4ee4&#xff1a;<\/li>\n<\/ul>\n<h2>\u65b9\u6cd51&#xff1a;\u67e5\u770bmessages\u65e5\u5fd7&#xff08;\u6309\u65f6\u95f4\u5012\u5e8f&#xff09;<\/h2>\n<p>cat \/var\/log\/messages | grep -iE \u201cerror|warn|fail|panic|oops\u201d<\/p>\n<h2>\u65b9\u6cd52&#xff1a;\u901a\u8fc7journalctl\u67e5\u770b\u5185\u6838\u65e5\u5fd7&#xff08;\u66f4\u5168\u9762&#xff0c;\u652f\u6301\u6309\u65f6\u95f4\u7b5b\u9009&#xff09;<\/h2>\n<p>journalctl -k  # \u67e5\u770b\u6240\u6709\u5185\u6838\u65e5\u5fd7<br \/>\njournalctl -k -e  # \u67e5\u770b\u5185\u6838\u65e5\u5fd7\u5c3e\u90e8&#xff08;\u6700\u8fd1\u8bb0\u5f55&#xff09;<br \/>\njournalctl -k &#8211;since \u201c1\u5c0f\u65f6\u524d\u201d  # \u67e5\u770b1\u5c0f\u65f6\u5185\u7684\u5185\u6838\u65e5\u5fd7<br \/>\n2.2 \u7cfb\u7edf\u72b6\u6001\u4e0e\u5386\u53f2\u8bb0\u5f55\u6392\u67e5<br \/>\n2.2.1 \u67e5\u770b\u7cfb\u7edf\u91cd\u542f \/ \u767b\u5f55\u8bb0\u5f55<\/p>\n<ul>\n<li>\u547d\u4ee4&#xff1a;<\/li>\n<\/ul>\n<h2>\u67e5\u770b\u7cfb\u7edf\u91cd\u542f\u3001\u5173\u673a\u3001\u767b\u5f55\u5386\u53f2&#xff08;last -x \u5305\u542b\u7cfb\u7edf\u4e8b\u4ef6&#xff09;<\/h2>\n<p>last -x | head -n 20<\/p>\n<h2>\u7b5b\u9009\u91cd\u542f\u8bb0\u5f55<\/h2>\n<p>last -x | grep \u201creboot\u201d<\/p>\n<ul>\n<li>\u7528\u9014&#xff1a;\u786e\u8ba4\u5b95\u673a\u662f\u5426\u5bfc\u81f4\u7cfb\u7edf\u91cd\u542f&#xff0c;\u4ee5\u53ca\u91cd\u542f\u65f6\u95f4\u70b9&#xff0c;\u5bf9\u5e94\u65e5\u5fd7\u4e2d\u7684\u5f02\u5e38\u8bb0\u5f55\u3002<br \/>\n2.2.2 \u67e5\u770b\u5b95\u673a\u524d\u540e\u7cfb\u7edf\u8d1f\u8f7d&#xff08;sar \u5de5\u5177&#xff09;<\/li>\n<li>\u524d\u63d0&#xff1a;\u9700\u5b89\u88c5 sysstat \u5de5\u5177&#xff08;\u9ed8\u8ba4\u53ef\u80fd\u672a\u5b89\u88c5&#xff09;<br \/>\n\u5b89\u88c5\u547d\u4ee4&#xff1a;yum install -y sysstat<\/li>\n<li>\u547d\u4ee4&#xff1a;<\/li>\n<\/ul>\n<h2>\u67e5\u770b\u6307\u5b9a\u65e5\u671f\u7684\u7cfb\u7edf\u8d1f\u8f7d\u65e5\u5fd7&#xff08;XX\u4e3a\u65e5\u671f&#xff0c;\u5982sa22\u4ee3\u886822\u65e5&#xff09;<\/h2>\n<p>sar -u -r -q -f \/var\/log\/sa\/saXX<\/p>\n<ul>\n<li>\u53c2\u6570\u8bf4\u660e&#xff1a;\n<ul>\n<li>-u&#xff1a;CPU \u4f7f\u7528\u7387&#xff1b; -r&#xff1a;\u5185\u5b58\u4f7f\u7528\u7387&#xff1b; -q&#xff1a;\u7cfb\u7edf\u8d1f\u8f7d&#xff08;\u8fd0\u884c\u961f\u5217\u957f\u5ea6&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u7528\u9014&#xff1a;\u6392\u67e5\u662f\u5426\u56e0 CPU \/ \u5185\u5b58\u8fc7\u8f7d\u5bfc\u81f4\u5b95\u673a\u3002<br \/>\n\u4e09\u3001\u573a\u666f 1&#xff1a;\u7cfb\u7edf\u91cd\u542f&#xff08;\u5185\u6838\u5d29\u6e83 \/ Kernel Panic&#xff09;\u5b9a\u4f4d<br \/>\n\u82e5\u670d\u52a1\u5668\u5b95\u673a\u540e\u81ea\u52a8\u91cd\u542f&#xff0c;\u8bf4\u660e\u53d1\u751f\u5185\u6838\u5d29\u6e83&#xff0c;\u6838\u5fc3\u4f9d\u8d56 kdump \u751f\u6210\u7684\u5d29\u6e83\u8f6c\u50a8\u6587\u4ef6&#xff08;vmcore&#xff09;\u5b9a\u4f4d\u9519\u8bef\u4f4d\u7f6e\u3002<br \/>\n3.1 \u68c0\u67e5 kdump \u5d29\u6e83\u8f6c\u50a8\u6587\u4ef6<br \/>\n3.1.1 \u786e\u8ba4\u662f\u5426\u751f\u6210 vmcore \u6587\u4ef6<\/li>\n<li>\u547d\u4ee4&#xff1a;<\/li>\n<\/ul>\n<h2>\u67e5\u770bkdump\u9ed8\u8ba4\u5b58\u50a8\u76ee\u5f55&#xff08;\u914d\u7f6e\u6587\u4ef6\u4e3a\/etc\/kdump.conf&#xff09;<\/h2>\n<p>ls -lt \/var\/crash\/<\/p>\n<ul>\n<li>\u5224\u5b9a&#xff1a;\u82e5\u5b58\u5728\u7c7b\u4f3c 127.0.0.1-202X-XX-XX-XX:XX:XX \u7684\u76ee\u5f55&#xff0c;\u8bf4\u660e\u6210\u529f\u6355\u83b7\u5d29\u6e83\u8f6c\u50a8&#xff08;\u542b vmcore \u6587\u4ef6&#xff09;\u3002<br \/>\n3.1.2 \u5206\u6790 vmcore \u6587\u4ef6&#xff08;\u5b9a\u4f4d\u5d29\u6e83\u6839\u6e90&#xff09;<\/li>\n<li>\u6b65\u9aa4 1&#xff1a;\u5b89\u88c5 crash \u5206\u6790\u5de5\u5177<br \/>\n\u547d\u4ee4&#xff1a;yum install -y crash<\/li>\n<li>\u6b65\u9aa4 2&#xff1a;\u67e5\u627e vmlinux \u6587\u4ef6&#xff08;\u5185\u6838\u8c03\u8bd5\u7b26\u53f7\u6587\u4ef6&#xff09;<br \/>\n\u547d\u4ee4&#xff1a;find \/usr\/lib\/debug\/lib\/modules\/ -name vmlinux<br \/>\n&#xff08;\u901a\u5e38\u8def\u5f84&#xff1a;\/usr\/lib\/debug\/lib\/modules\/$(uname -r)\/vmlinux&#xff09;<\/li>\n<li>\u6b65\u9aa4 3&#xff1a;\u542f\u52a8 crash \u4ea4\u4e92\u5f0f\u5206\u6790<br \/>\n\u547d\u4ee4&#xff1a;<\/li>\n<\/ul>\n<h2>\u8fdb\u5165crash\u76ee\u5f55&#xff08;\u66ff\u6362\u4e3a\u5b9e\u9645\u76ee\u5f55\u540d&#xff09;<\/h2>\n<p>cd \/var\/crash\/127.0.0.1-202X-XX-XX-XX:XX:XX\/<\/p>\n<h2>\u6267\u884c\u5206\u6790&#xff08;\u66ff\u6362vmlinux\u5b9e\u9645\u8def\u5f84&#xff09;<\/h2>\n<p>crash \/usr\/lib\/debug\/lib\/modules\/XXX\/vmlinux vmcore<\/p>\n<ul>\n<li>\u6838\u5fc3\u5206\u6790\u547d\u4ee4&#xff08;\u5728 crash \u4ea4\u4e92\u754c\u9762\u8f93\u5165&#xff09;&#xff1a;\n<ul>\n<li>bt&#xff1a;\u6253\u5370\u5d29\u6e83\u65f6\u7684\u5185\u6838\u5806\u6808&#xff08;Call Trace&#xff09;&#xff0c;\u76f4\u63a5\u67e5\u770b\u5bfc\u81f4\u5d29\u6e83\u7684\u51fd\u6570\u8c03\u7528\u94fe&#xff0c;\u5b9a\u4f4d\u9519\u8bef\u6a21\u5757&#xff08;\u5982\u9a71\u52a8\u3001\u5185\u6838\u7ec4\u4ef6&#xff09;&#xff1b;<\/li>\n<li>ps&#xff1a;\u67e5\u770b\u5d29\u6e83\u65f6\u8fd0\u884c\u7684\u8fdb\u7a0b&#xff0c;\u786e\u8ba4\u662f\u5426\u7531\u7279\u5b9a\u8fdb\u7a0b\u89e6\u53d1&#xff1b;<\/li>\n<li>log&#xff1a;\u67e5\u770b\u5d29\u6e83\u65f6\u7684\u5185\u6838\u65e5\u5fd7&#xff1b;<\/li>\n<li>mod&#xff1a;\u67e5\u770b\u52a0\u8f7d\u7684\u5185\u6838\u6a21\u5757&#xff0c;\u6392\u67e5\u6a21\u5757\u51b2\u7a81\u3002<br \/>\n3.2 \u82e5\u672a\u751f\u6210 vmcore \u6587\u4ef6&#xff1a;\u68c0\u67e5 kdump \u914d\u7f6e<br \/>\n3.2.1 \u67e5\u770b kdump \u670d\u52a1\u72b6\u6001<\/li>\n<\/ul>\n<\/li>\n<li>\u547d\u4ee4&#xff1a;<br \/>\nsystemctl status kdump<\/li>\n<\/ul>\n<h2>\u82e5\u672a\u542f\u52a8&#xff0c;\u6267\u884c\u542f\u52a8\u547d\u4ee4<\/h2>\n<p>systemctl start kdump<\/p>\n<h2>\u8bbe\u7f6e\u5f00\u673a\u81ea\u542f<\/h2>\n<p>systemctl enable kdump<br \/>\n3.2.2 \u9a8c\u8bc1 kdump \u914d\u7f6e\u6587\u4ef6<\/p>\n<ul>\n<li>\u914d\u7f6e\u6587\u4ef6\u8def\u5f84&#xff1a;\/etc\/kdump.conf<\/li>\n<li>\u5173\u952e\u914d\u7f6e\u9879&#xff08;\u786e\u4fdd\u6b63\u786e\u8bbe\u7f6e&#xff09;&#xff1a;\n<ul>\n<li>path \/var\/crash&#xff1a;\u8f6c\u50a8\u6587\u4ef6\u5b58\u50a8\u8def\u5f84&#xff1b;<\/li>\n<li>core_collector makedumpfile -c -l -message-level 1 -d 31&#xff1a;\u8f6c\u50a8\u6587\u4ef6\u538b\u7f29\u914d\u7f6e&#xff1b;<\/li>\n<\/ul>\n<\/li>\n<li>\u91cd\u542f kdump \u670d\u52a1&#xff1a;systemctl restart kdump<br \/>\n\u56db\u3001\u573a\u666f 2&#xff1a;\u7cfb\u7edf\u6b7b\u673a&#xff08;\u65e0\u54cd\u5e94 \/ System Hang&#xff09;\u5b9a\u4f4d<br \/>\n\u82e5\u670d\u52a1\u5668\u672a\u91cd\u542f&#xff0c;\u4f46\u51fa\u73b0\u952e\u76d8\u65e0\u53cd\u5e94\u3001SSH \u65ad\u8fde\u3001\u8fdb\u7a0b\u65e0\u6cd5\u6267\u884c\u7b49\u5361\u6b7b\u72b6\u6001&#xff0c;\u9700\u901a\u8fc7\u5e94\u6025\u624b\u6bb5\u6536\u96c6\u4fe1\u606f\u6216\u5f3a\u5236\u751f\u6210\u65e5\u5fd7\u3002<br \/>\n4.1 \u5e94\u6025\u64cd\u4f5c&#xff1a;Magic SysRq Key&#xff08;\u9b54\u6cd5\u952e&#xff09;<br \/>\nMagic SysRq \u662f\u5185\u6838\u63d0\u4f9b\u7684\u5e94\u6025\u8c03\u8bd5\u529f\u80fd&#xff0c;\u53ef\u5728\u7cfb\u7edf Hang \u65f6\u5f3a\u5236\u8f93\u51fa\u5173\u952e\u4fe1\u606f\u6216\u6062\u590d\u7cfb\u7edf\u3002<br \/>\n4.1.1 \u64cd\u4f5c\u65b9\u5f0f<\/li>\n<li>\u7269\u7406\u670d\u52a1\u5668&#xff1a;\u76f4\u63a5\u6309\u952e\u76d8\u7ec4\u5408\u952e Alt &#043; SysRq (PrintScreen) &#043; \u5bf9\u5e94\u5b57\u6bcd&#xff1b;<\/li>\n<li>\u8fdc\u7a0b\u7ba1\u7406\u5361&#xff1a;\u901a\u8fc7 BMC\/IPMI \u7684\u865a\u62df\u952e\u76d8\u6267\u884c\u4e0a\u8ff0\u7ec4\u5408\u952e\u3002<br \/>\n4.1.2 \u5e38\u7528\u7ec4\u5408\u952e&#xff08;\u6309\u4f18\u5148\u7ea7\u6267\u884c&#xff09;<br \/>\n\u7ec4\u5408\u952e<br \/>\n\u529f\u80fd\u8bf4\u660e<br \/>\nAlt &#043; SysRq &#043; h<br \/>\n\u67e5\u770b\u6240\u6709 Magic SysRq \u652f\u6301\u7684\u547d\u4ee4<br \/>\nAlt &#043; SysRq &#043; t<br \/>\n\u8f93\u51fa\u5f53\u524d\u6240\u6709\u8fdb\u7a0b\u7684 PID\u3001CPU \u5360\u7528\u3001\u8c03\u7528\u6808\u4fe1\u606f\u5230\u7cfb\u7edf\u65e5\u5fd7&#xff08;\u6838\u5fc3\u6392\u67e5\u547d\u4ee4&#xff09;<br \/>\nAlt &#043; SysRq &#043; m<br \/>\n\u8f93\u51fa\u5185\u5b58\u4f7f\u7528\u8be6\u60c5&#xff08;\u5305\u62ec\u7269\u7406\u5185\u5b58\u3001\u4ea4\u6362\u5206\u533a\u3001SLAB \u7f13\u5b58&#xff09;\u5230\u7cfb\u7edf\u65e5\u5fd7<br \/>\nAlt &#043; SysRq &#043; s<br \/>\n\u540c\u6b65\u6240\u6709\u78c1\u76d8\u5206\u533a&#xff08;\u9632\u6b62\u6570\u636e\u4e22\u5931&#xff09;<br \/>\nAlt &#043; SysRq &#043; e<br \/>\n\u5411\u6240\u6709\u8fdb\u7a0b\u53d1\u9001 SIGTERM \u4fe1\u53f7&#xff08;\u5b89\u5168\u7ec8\u6b62\u8fdb\u7a0b&#xff0c;\u5c1d\u8bd5\u6062\u590d\u7cfb\u7edf&#xff09;<br \/>\nAlt &#043; SysRq &#043; i<br \/>\n\u5411\u6240\u6709\u8fdb\u7a0b\u53d1\u9001 SIGKILL \u4fe1\u53f7&#xff08;\u5f3a\u5236\u7ec8\u6b62\u8fdb\u7a0b&#xff0c;\u4ec5\u5728 e \u547d\u4ee4\u65e0\u6548\u65f6\u4f7f\u7528&#xff09;<br \/>\nAlt &#043; SysRq &#043; b<br \/>\n\u7acb\u5373\u91cd\u542f\u7cfb\u7edf&#xff08;\u6700\u540e\u624b\u6bb5&#xff0c;\u4ec5\u5728\u65e0\u6cd5\u6062\u590d\u65f6\u4f7f\u7528&#xff09;<br \/>\n4.1.3 \u67e5\u770b Magic SysRq \u8f93\u51fa\u65e5\u5fd7<\/li>\n<li>\u547d\u4ee4&#xff1a;journalctl -k | grep \u201cSysRq\u201d \u6216 cat \/var\/log\/messages | grep \u201cSysRq\u201d<br \/>\n4.2 \u957f\u6548\u914d\u7f6e&#xff1a;NMI Watchdog&#xff08;\u975e\u5c4f\u853d\u4e2d\u65ad\u770b\u95e8\u72d7&#xff09;<br \/>\n\u82e5\u7cfb\u7edf\u9891\u7e41 Hang \u4e14\u65e0\u6cd5\u901a\u8fc7 Magic SysRq \u6536\u96c6\u4fe1\u606f&#xff0c;\u53ef\u914d\u7f6e NMI Watchdog&#xff0c;\u5f53\u7cfb\u7edf\u5361\u6b7b\u65f6\u5f3a\u5236\u89e6\u53d1\u5185\u6838\u5d29\u6e83\u5e76\u751f\u6210 vmcore&#xff0c;\u4fbf\u4e8e\u4e8b\u540e\u5206\u6790\u3002<br \/>\n4.2.1 \u4e34\u65f6\u5f00\u542f NMI Watchdog&#xff08;\u7acb\u5373\u751f\u6548&#xff0c;\u91cd\u542f\u5931\u6548&#xff09;<\/li>\n<li>\u547d\u4ee4&#xff1a;echo 1 &gt; \/proc\/sys\/kernel\/nmi_watchdog<br \/>\n4.2.2 \u6c38\u4e45\u5f00\u542f NMI Watchdog&#xff08;\u91cd\u542f\u540e\u751f\u6548&#xff09;<\/li>\n<li>\u7f16\u8f91\u914d\u7f6e\u6587\u4ef6&#xff1a;vi \/etc\/sysctl.conf<\/li>\n<li>\u6dfb\u52a0\u914d\u7f6e\u9879&#xff1a;kernel.nmi_watchdog &#061; 1<\/li>\n<li>\u751f\u6548\u914d\u7f6e&#xff1a;sysctl -p<br \/>\n4.2.3 \u89e6\u53d1 NMI \u4fe1\u53f7&#xff08;\u7cfb\u7edf Hang \u65f6&#xff09;<\/li>\n<li>\u901a\u8fc7 BMC\/IPMI \u53d1\u9001 NMI \u4fe1\u53f7&#xff1a;ipmitool chassis power diag<\/li>\n<li>\u7cfb\u7edf\u6536\u5230 NMI \u4fe1\u53f7\u540e&#xff0c;\u4f1a\u89e6\u53d1 Kernel Panic \u5e76\u751f\u6210 vmcore&#xff0c;\u540e\u7eed\u6309 \u201c\u573a\u666f 1\u201d \u7684 vmcore \u5206\u6790\u6d41\u7a0b\u6392\u67e5\u3002<br \/>\n\u4e94\u3001\u786c\u4ef6\u5c42\u9762\u6392\u67e5&#xff08;OpenEuler \u7279\u4f9b\u5de5\u5177&#xff09;<br \/>\n\u82e5\u8f6f\u4ef6\u65e5\u5fd7\u672a\u53d1\u73b0\u5f02\u5e38&#xff0c;\u9700\u6392\u67e5\u786c\u4ef6\u6545\u969c&#xff08;\u5982 CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u3001\u7535\u6e90\u7b49&#xff09;&#xff0c;OpenEuler \u63d0\u4f9b\u539f\u751f\u5de5\u5177\u652f\u6301\u786c\u4ef6\u72b6\u6001\u68c0\u6d4b\u3002<br \/>\n5.1 \u67e5\u770b\u786c\u4ef6\u4e8b\u4ef6\u65e5\u5fd7&#xff08;SEL&#xff09;<br \/>\n\u901a\u8fc7 ipmitool \u5de5\u5177\u8bfb\u53d6 BMC \u7684\u7cfb\u7edf\u4e8b\u4ef6\u65e5\u5fd7&#xff08;SEL&#xff09;&#xff0c;\u8bb0\u5f55\u786c\u4ef6\u9519\u8bef&#xff08;\u5982\u6e29\u5ea6\u8fc7\u9ad8\u3001\u7535\u538b\u5f02\u5e38\u3001\u98ce\u6247\u6545\u969c\u7b49&#xff09;\u3002<\/li>\n<li>\u5b89\u88c5 ipmitool&#xff1a;yum install -y ipmitool<\/li>\n<li>\u547d\u4ee4&#xff1a;ipmitool sel list<\/li>\n<li>\u5173\u6ce8\u5173\u952e\u8bcd&#xff1a;Temperature&#xff08;\u6e29\u5ea6&#xff09;\u3001Voltage&#xff08;\u7535\u538b&#xff09;\u3001Fan&#xff08;\u98ce\u6247&#xff09;\u3001Power&#xff08;\u7535\u6e90&#xff09;\u3001Critical&#xff08;\u4e25\u91cd\u9519\u8bef&#xff09;\u3002<br \/>\n5.2 \u78c1\u76d8\u5065\u5eb7\u72b6\u6001\u68c0\u67e5&#xff08;SMART&#xff09;<br \/>\n\u901a\u8fc7 smartctl \u5de5\u5177\u68c0\u6d4b\u78c1\u76d8\u662f\u5426\u5b58\u5728\u574f\u9053\u3001\u5bff\u547d\u8870\u51cf\u7b49\u95ee\u9898\u3002<\/li>\n<li>\u5b89\u88c5 smartmontools&#xff1a;yum install -y smartmontools<\/li>\n<li>\u547d\u4ee4&#xff1a;smartctl -a \/dev\/sda&#xff08;\u5c06sda\u66ff\u6362\u4e3a\u5b9e\u9645\u78c1\u76d8\u8bbe\u5907\u540d&#xff0c;\u5982sdb\u3001nvme0n1&#xff09;<\/li>\n<li>\u5173\u952e\u5224\u5b9a&#xff1a;SMART overall-health self-assessment test result \u9700\u4e3a PASSED&#xff1b;\u82e5\u51fa\u73b0 Pre-failure \u6807\u8bc6&#xff0c;\u8bf4\u660e\u78c1\u76d8\u5b58\u5728\u6545\u969c\u98ce\u9669\u3002<br \/>\n5.3 CPU \u786c\u4ef6\u9519\u8bef\u68c0\u67e5&#xff08;MCE \u65e5\u5fd7&#xff09;<br \/>\nCPU \u786c\u4ef6\u6545\u969c&#xff08;\u5982\u7f13\u5b58\u9519\u8bef\u3001\u603b\u7ebf\u9519\u8bef&#xff09;\u4f1a\u8bb0\u5f55\u5728 MCE&#xff08;Machine Check Exception&#xff09;\u65e5\u5fd7\u4e2d\u3002<\/li>\n<li>\u547d\u4ee4&#xff1a;<\/li>\n<\/ul>\n<h2>\u67e5\u770bMCE\u65e5\u5fd7\u6587\u4ef6<\/h2>\n<p>cat \/var\/log\/mcelog<\/p>\n<h2>\u6216\u901a\u8fc7journalctl\u67e5\u770b<\/h2>\n<p>journalctl -t mcelog<\/p>\n<ul>\n<li>\u5173\u6ce8\u5173\u952e\u8bcd&#xff1a;CPU 0: Machine Check Exception\u3001Uncorrected Error&#xff08;\u4e0d\u53ef\u7ea0\u6b63\u9519\u8bef&#xff0c;\u9700\u66f4\u6362 CPU&#xff09;\u3001Corrected Error&#xff08;\u53ef\u7ea0\u6b63\u9519\u8bef&#xff0c;\u9700\u76d1\u63a7\u662f\u5426\u9891\u7e41\u51fa\u73b0&#xff09;\u3002<br \/>\n5.4 \u5185\u5b58\u6545\u969c\u6392\u67e5<\/li>\n<li>\u4e34\u65f6\u68c0\u6d4b&#xff1a;\u6267\u884c memtest86&#043; \u5de5\u5177&#xff08;\u9700\u901a\u8fc7 U \u76d8\u542f\u52a8&#xff0c;\u9002\u5408\u79bb\u7ebf\u68c0\u6d4b&#xff09;&#xff1b;<\/li>\n<li>\u5728\u7ebf\u68c0\u6d4b&#xff1a;\u5b89\u88c5 memstat \u5de5\u5177&#xff0c;\u6267\u884c memstat -w \u67e5\u770b\u5185\u5b58\u4f7f\u7528\u8be6\u60c5&#xff0c;\u6392\u67e5\u5185\u5b58\u6cc4\u6f0f\u6216\u786c\u4ef6\u6545\u969c\u3002<br \/>\n\u516d\u3001\u5feb\u901f\u5b9a\u4f4d\u6d41\u7a0b\u56fe&#xff08;\u7b80\u5316\u7248&#xff09;<br \/>\n\u5f00\u59cb \u2192 \u670d\u52a1\u5668\u662f\u5426\u91cd\u542f&#xff1f;<br \/>\n\u251c\u2500 \u662f&#xff08;\u5185\u6838\u5d29\u6e83&#xff09;\u2192 \u68c0\u67e5\/var\/crash&#xff08;kdump\u8f6c\u50a8&#xff09;\u2192 \u6709vmcore\u2192crash\u5de5\u5177\u5206\u6790\u2192\u5b9a\u4f4d\u9519\u8bef\u6a21\u5757<br \/>\n\u2502                \u2514\u2500 \u65e0vmcore\u2192\u5f00\u542fkdump\u2192\u590d\u73b0\u95ee\u9898\u2192\u751f\u6210vmcore\u5206\u6790<br \/>\n\u2514\u2500 \u5426&#xff08;\u7cfb\u7edf\u6b7b\u673a&#xff09;\u2192 \u5c1d\u8bd5Magic SysRq&#xff08;t\/m\u547d\u4ee4&#xff09;\u2192 \u6536\u96c6\u65e5\u5fd7\u2192\u5206\u6790\u8fdb\u7a0b\/\u5185\u5b58\u5f02\u5e38<br \/>\n\u2514\u2500 \u65e0\u6cd5\u6536\u96c6\u2192\u914d\u7f6eNMI Watchdog\u2192\u89e6\u53d1\u5d29\u6e83\u2192\u751f\u6210vmcore\u5206\u6790<br \/>\n\u2192 \u8f6f\u4ef6\u65e5\u5fd7\u65e0\u5f02\u5e38\u2192\u786c\u4ef6\u6392\u67e5&#xff08;SEL\u2192\u78c1\u76d8SMART\u2192MCE\u2192\u5185\u5b58\u68c0\u6d4b&#xff09;\u2192 \u5b9a\u4f4d\u786c\u4ef6\u6545\u969c<br \/>\n\u4e03\u3001\u5e38\u89c1\u9519\u8bef\u4f4d\u7f6e\u53ca\u5bf9\u5e94\u89e3\u51b3\u65b9\u6848<br \/>\n\u9519\u8bef\u5173\u952e\u8bcd \/ \u73b0\u8c61<br \/>\n\u9519\u8bef\u4f4d\u7f6e\u5224\u5b9a<br \/>\n\u89e3\u51b3\u65b9\u6848<br \/>\nKernel panic &#043; Call Trace<br \/>\n\u5185\u6838\u6a21\u5757 \/ \u9a71\u52a8\u51b2\u7a81\u3001\u5185\u6838\u6f0f\u6d1e<br \/>\n\u67e5\u770b Call Trace \u4e2d\u7684\u6a21\u5757\u540d&#xff0c;\u5378\u8f7d\u51b2\u7a81\u6a21\u5757&#xff1b;\u5347\u7ea7\u5185\u6838\u5230\u7a33\u5b9a\u7248\u672c<br \/>\nOut of memory (OOM Killer)<br \/>\n\u5185\u5b58\u6cc4\u6f0f\u3001\u5e94\u7528\u5360\u7528\u8fc7\u9ad8\u3001\u5185\u5b58\u4e0d\u8db3<br \/>\n\u6392\u67e5\u5185\u5b58\u6cc4\u6f0f\u8fdb\u7a0b&#xff08;ps aux &#8211;sort&#061;-%mem&#xff09;&#xff1b;\u589e\u52a0\u7269\u7406\u5185\u5b58\u6216\u4ea4\u6362\u5206\u533a<br \/>\nblk_update_request: I\/O error<br \/>\n\u78c1\u76d8\u574f\u9053\u3001\u7ebf\u7f06\u677e\u52a8\u3001\u78c1\u76d8\u63a7\u5236\u5668\u6545\u969c<br \/>\n\u66f4\u6362\u6545\u969c\u78c1\u76d8&#xff1b;\u68c0\u67e5\u78c1\u76d8\u7ebf\u7f06\u548c\u63a7\u5236\u5668&#xff1b;\u6267\u884c fsck \u4fee\u590d\u6587\u4ef6\u7cfb\u7edf<br \/>\nsoft lockup &#8211; CPU#0 stuck<br \/>\n\u5185\u6838\u6b7b\u5faa\u73af\u3001\u9a71\u52a8\u5f02\u5e38<br \/>\n\u67e5\u770b dmesg \u4e2d\u7684\u8c03\u7528\u94fe&#xff0c;\u5347\u7ea7\u5bf9\u5e94\u9a71\u52a8&#xff1b;\u7981\u7528\u6709\u95ee\u9898\u7684\u5185\u6838\u6a21\u5757<br \/>\nMCE: Uncorrected Error<br \/>\nCPU \u786c\u4ef6\u6545\u969c<br \/>\n\u66f4\u6362\u6545\u969c CPU&#xff1b;\u68c0\u67e5\u4e3b\u677f\u4f9b\u7535\u662f\u5426\u6b63\u5e38<br \/>\nSMART Pre-failure<br \/>\n\u78c1\u76d8\u5373\u5c06\u635f\u574f<br \/>\n\u7acb\u5373\u5907\u4efd\u6570\u636e&#xff0c;\u66f4\u6362\u78c1\u76d8<br \/>\ntask blocked for 120s<br \/>\n\u8fdb\u7a0b\u6b7b\u9501\u3001\u8d44\u6e90\u8017\u5c3d&#xff08;\u5982\u9501\u7ade\u4e89\u3001IO \u963b\u585e&#xff09;<br \/>\n\u67e5\u770b\u5bf9\u5e94\u8fdb\u7a0b\u7684\u8c03\u7528\u6808&#xff08;pstack \u8fdb\u7a0bPID&#xff09;&#xff1b;\u4f18\u5316\u5e94\u7528\u4ee3\u7801\u6216\u7cfb\u7edf\u53c2\u6570<br \/>\n\u516b\u3001\u9644\u5f55&#xff1a;\u5e38\u7528\u5de5\u5177\u5b89\u88c5\u547d\u4ee4\u6c47\u603b<br \/>\n\u5de5\u5177\u540d\u79f0<br \/>\n\u5b89\u88c5\u547d\u4ee4<br \/>\n\u7528\u9014<br \/>\ncrash<br \/>\nyum install -y crash<br \/>\n\u5206\u6790 vmcore \u5185\u6838\u5d29\u6e83\u6587\u4ef6<br \/>\nkdump<br \/>\nyum install -y kdump<br \/>\n\u6355\u83b7\u5185\u6838\u5d29\u6e83\u8f6c\u50a8<br \/>\nsysstat<br \/>\nyum install -y sysstat<br 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