https://blog.mulinux.com/en/tags/%E4%B8%87%E5%85%86%E7%BD%91%E5%8D%A1/ Mulinux - Linux Operations & DevOps blog. Notes on Linux, Kubernetes, Docker and backend engineering. Hugo 0.160.0 & FixIt v0.4.5 en Sat, 18 Aug 2018 12:41:34 +0800 https://blog.mulinux.com/en/hpgen9%E5%81%9A%E4%B8%87%E5%85%86%E7%BD%91%E5%8D%A1%E7%9B%B4%E9%80%9A%E6%97%B6%E6%8A%A5%E9%94%99/ Sat, 18 Aug 2018 12:41:34 +0800 https://blog.mulinux.com/en/hpgen9%E5%81%9A%E4%B8%87%E5%85%86%E7%BD%91%E5%8D%A1%E7%9B%B4%E9%80%9A%E6%97%B6%E6%8A%A5%E9%94%99/ Operations <h2 class="heading-element" id="vi-etcgrub2cnf"><span>vi /etc/grub2.cnf</span> <a href="#vi-etcgrub2cnf" class="heading-mark"> <svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg> </a> </h2><pre><code>在内核那一行添加”intel_iommu=on“ 重启后检查：cat /proc/cmdline | grep iommu</code></pre><h2 class="heading-element" id="dmesggrep--e-dmar--e-iommu"><span>dmesg|grep -e DMAR -e IOMMU</span> <a href="#dmesggrep--e-dmar--e-iommu" class="heading-mark"> <svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg> </a> </h2><pre><code>报错：vfio-pci 0000:04:00.3: Device is ineligible for IOMMU domain attach due to platform RMRR requirement. Contact your platform vendor.</code></pre><h2 class="heading-element" id="根据报错在hp论坛查找到该错误信息"><span>根据报错在hp论坛查找到该错误信息</span> <a href="#%e6%a0%b9%e6%8d%ae%e6%8a%a5%e9%94%99%e5%9c%a8hp%e8%ae%ba%e5%9d%9b%e6%9f%a5%e6%89%be%e5%88%b0%e8%af%a5%e9%94%99%e8%af%af%e4%bf%a1%e6%81%af" class="heading-mark"> <svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg> </a> </h2><pre><code>https://support.hpe.com/hpsc/doc/public/display?sp4ts.oid=7271259&amp;docId=emr_na-c04781229&amp;docLocale=en_US https://community.hpe.com/t5/ProLiant-Servers-ML-DL-SL/Device-is-ineligible-for-IOMMU-domain-attach-due-to-platform/td-p/6751904 通过lspci -vvv | grep Ethernet可以查看到网卡的具体型号</code></pre><h2 class="heading-element" id="解决方案"><span>解决方案：</span> <a href="#%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88" class="heading-mark"> <svg class="octicon octicon-link" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z"></path></svg> </a> </h2><p><img loading="lazy" src='https://cdn.jsdelivr.net/gh/jiuchan/pic1.blog.mulinux.com/img/image-20201117124038967.png' alt="image-20201117124038967"></p>