{"id":46,"date":"2025-01-16T21:58:59","date_gmt":"2025-01-16T13:58:59","guid":{"rendered":"https:\/\/ziyuan.work\/?p=46"},"modified":"2025-11-12T14:59:38","modified_gmt":"2025-11-12T06:59:38","slug":"%e7%a7%bb%e9%99%a4%e5%86%85%e6%a0%b8%e5%b4%a9%e6%ba%83%e8%bd%ac%e5%82%a8%ef%bc%88kdump%ef%bc%89","status":"publish","type":"post","link":"https:\/\/ziyuan.work\/?p=46","title":{"rendered":"\u79fb\u9664\u5185\u6838\u5d29\u6e83\u8f6c\u50a8\uff08kdump\uff09"},"content":{"rendered":"\n<p>\u5f53Linux\u5185\u6838\u5d29\u6e83\u65f6\uff0ckdump \u4f1a\u5229\u7528\u9884\u7559\u7684\u4e00\u6bb5\u5185\u5b58\uff08\u79f0\u4e3a crash kernel\uff09\u542f\u52a8\u4e00\u4e2a\u6700\u5c0f\u5316\u7684\u5185\u6838\u73af\u5883\uff0c\u4ece\u800c\u5c06\u6545\u969c\u65f6\u7684\u5185\u5b58\u6570\u636e\u4fdd\u5b58\u5230\u786c\u76d8\u3002\u5d29\u6e83\u65e5\u5fd7\u53ef\u7528\u4e8e\u540e\u671f\u6545\u969c\u6392\u67e5\u3002\u4e91\u4e3b\u673a\u7684\u5185\u5b58\u6bd4\u8f83\u5b9d\u8d35\uff0c\u5982\u679c\u662f\u4e00\u53f04G\u5185\u5b58\u7684\u4e3b\u673a\uff0c\u9664\u53bbKVM\u7684\u786c\u4ef6\u9884\u7559\uff0c\u8fd8\u6709\u5185\u6838\u5d29\u6e83\u8f6c\u50a8\u9884\u7559\uff0c\u53ef\u80fd\u5b9e\u9645available ram\u4e3a3.6G\u5de6\u53f3\u3002\u5982\u679c\u4e0d\u9700\u8981\u6355\u83b7\u7cfb\u7edf\u5d29\u6e83\u4fe1\u606f\uff0c\u53ef\u4ee5\u518d\u817e\u51fa\u4e00\u4e9b\u7a7a\u95f4\u3002\u6709\u4e9b\u4e91\u670d\u52a1\u5668\u5382\u5546\u7684\u7cfb\u7edf\u9ed8\u8ba4\u914d\u7f6ekdump\uff0c\u4e5f\u5c31\u662f\u8bf4\u5b58\u5728\u4e91\u4e3b\u673a\u8fd0\u884c\u5185\u5b58\u4e0d\u8db3\u989d\u7684\u60c5\u51b5\uff0c\u8fd9\u8fb9\u9700\u8981\u624b\u52a8\u66f4\u65b0\u914d\u7f6e\u3002<\/p>\n\n\n\n<p>\u67e5\u770b\u7cfb\u7edf\u5f53\u524d\u7684\u5185\u5b58\u9884\u7559\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo dmesg | grep -i memory<app-translate-content class=\"eusoft-translate-container-span-en ng-star-inserted\" _nghost-ng-c2283346422=\"\"><span class=\"eusoft-eudic-chrome-extension-translate-content quote\" _ngcontent-ng-c2283346422=\"\"><span _ngcontent-ng-c2283346422=\"\" class=\"eusoft-eudic-chrome-extension-translate-topbottom-space ng-star-inserted\"><\/span><span class=\"eusoft-eudic-chrome-extension-translate-container ng-star-inserted\" _ngcontent-ng-c2283346422=\"\"><span class=\"eusoft-eudic-chrome-extension-translate-item eusoft-eudic-chrome-extension-long-sentence\" _ngcontent-ng-c2283346422=\"\" style=\" border-left: 4px solid #4D71FF !important; padding-left: 10px !important; display: block !important;\"><\/span><\/span><app-translate-config-button _ngcontent-ng-c2283346422=\"\" class=\"ng-star-inserted\"><\/app-translate-config-button><\/span><\/app-translate-content><\/code><\/pre>\n\n\n\n<p>\u4fee\u6539 \/etc\/default\/grub \uff0c\u53bb\u9664crashkernel\u76f8\u5173\u5b57\u6bb5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code has-medium-font-size\"><code>GRUB_CMDLINE_LINUX=\" vga=792 console=tty0 console=ttyS0,115200n8 net.ifnames=0 noibrs nvme_core.io_timeout=4294967295 nvme_core.admin_timeout=4294967295 iommu=pt <strong data-eusoft-did-translate-attribute-en=\"1\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#ff7505\" class=\"has-inline-color\">crashkernel=0M-1G:0M,1G-4G:192M,4G-128G:384M,128G-:512M<\/mark><\/strong> crash_kexec_post_notifiers=1\"<app-translate-content class=\"eusoft-translate-container-span-en ng-star-inserted\" _nghost-ng-c2283346422=\"\"><span class=\"eusoft-eudic-chrome-extension-translate-content quote\" _ngcontent-ng-c2283346422=\"\"><span _ngcontent-ng-c2283346422=\"\" class=\"eusoft-eudic-chrome-extension-translate-topbottom-space ng-star-inserted\"><\/span><span class=\"eusoft-eudic-chrome-extension-translate-container ng-star-inserted\" _ngcontent-ng-c2283346422=\"\"><span class=\"eusoft-eudic-chrome-extension-translate-item eusoft-eudic-chrome-extension-long-sentence\" _ngcontent-ng-c2283346422=\"\" style=\" border-left: 4px solid #4D71FF !important; padding-left: 10px !important; display: block !important;\"><\/span><\/span><app-translate-config-button _ngcontent-ng-c2283346422=\"\" class=\"ng-star-inserted\"><\/app-translate-config-button><\/span><\/app-translate-content><\/code><\/pre>\n\n\n\n<p>\u6539\u5b8cgrub\u540e\uff0c\u9700\u8981\u66f4\u65b0\u914d\u7f6e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code has-medium-font-size\"><code>sudo grub-mkconfig -o \/boot\/grub\/grub.cfg\n\nsudo grub-mkconfig -o \/boot\/efi\/EFI\/ubuntu\/grub.cfg<app-translate-content class=\"eusoft-translate-container-span-en ng-star-inserted\" _nghost-ng-c2283346422=\"\"><span class=\"eusoft-eudic-chrome-extension-translate-content quote\" _ngcontent-ng-c2283346422=\"\"><span _ngcontent-ng-c2283346422=\"\" class=\"eusoft-eudic-chrome-extension-translate-topbottom-space ng-star-inserted\"><\/span><span class=\"eusoft-eudic-chrome-extension-translate-container ng-star-inserted\" _ngcontent-ng-c2283346422=\"\"><span class=\"eusoft-eudic-chrome-extension-translate-item eusoft-eudic-chrome-extension-long-sentence\" _ngcontent-ng-c2283346422=\"\" style=\" border-left: 4px solid #4D71FF !important; padding-left: 10px !important; display: block !important;\"><\/span><\/span><app-translate-config-button _ngcontent-ng-c2283346422=\"\" class=\"ng-star-inserted\"><\/app-translate-config-button><\/span><\/app-translate-content><\/code><\/pre>\n\n\n\n<p>\u518d\u6b21\u91cd\u542f\u4e3b\u673a\uff0c\u5185\u5b58\u4f1a\u91ca\u653e\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53Linux\u5185\u6838\u5d29\u6e83\u65f6\uff0ckdump \u4f1a\u5229\u7528\u9884\u7559\u7684\u4e00\u6bb5\u5185\u5b58\uff08\u79f0\u4e3a crash kernel\uff09\u542f\u52a8\u4e00\u4e2a\u6700\u5c0f\u5316\u7684\u5185\u6838 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-46","post","type-post","status-publish","format-standard","hentry","category-solution"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/ziyuan.work\/index.php?rest_route=\/wp\/v2\/posts\/46","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ziyuan.work\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ziyuan.work\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ziyuan.work\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ziyuan.work\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=46"}],"version-history":[{"count":3,"href":"https:\/\/ziyuan.work\/index.php?rest_route=\/wp\/v2\/posts\/46\/revisions"}],"predecessor-version":[{"id":332,"href":"https:\/\/ziyuan.work\/index.php?rest_route=\/wp\/v2\/posts\/46\/revisions\/332"}],"wp:attachment":[{"href":"https:\/\/ziyuan.work\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=46"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ziyuan.work\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=46"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ziyuan.work\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=46"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}