{"id":677,"date":"2019-12-28T08:22:38","date_gmt":"2019-12-28T07:22:38","guid":{"rendered":"https:\/\/tollana.d-tor.org\/notes-to-self\/?p=677"},"modified":"2019-12-28T08:22:38","modified_gmt":"2019-12-28T07:22:38","slug":"valhalla-nic","status":"publish","type":"post","link":"https:\/\/tollana.d-tor.org\/notes-to-self\/?p=677","title":{"rendered":"Valhalla NIC"},"content":{"rendered":"\n<p>As it seems, the NIC in current valhalla has a hardware bug, causing hardware unit hangs. To work around this, disable scatter-gather, TCP segmentation offloading and generic receive offload with this command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"># ethtool -K wan sg off tso off gro off<\/pre>\n\n\n\n<p>I did that 11 days ago, and didn&#8217;t get a single unit hang yet. Keep your fingers crossed!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As it seems, the NIC in current valhalla has a hardware bug, causing hardware unit hangs. To work around this, disable scatter-gather, TCP segmentation offloading and generic receive offload with this command: # ethtool -K wan sg off tso off gro off I did that 11 days ago, and didn&#8217;t get a single unit hang &hellip; <a href=\"https:\/\/tollana.d-tor.org\/notes-to-self\/?p=677\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Valhalla NIC<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19,79,36],"tags":[168,169,170,167,171],"class_list":["post-677","post","type-post","status-publish","format-standard","hentry","category-arch-linux","category-hardware","category-hetzner","tag-gro","tag-gs","tag-nic","tag-tso","tag-valhalla"],"_links":{"self":[{"href":"https:\/\/tollana.d-tor.org\/notes-to-self\/index.php?rest_route=\/wp\/v2\/posts\/677","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tollana.d-tor.org\/notes-to-self\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tollana.d-tor.org\/notes-to-self\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tollana.d-tor.org\/notes-to-self\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tollana.d-tor.org\/notes-to-self\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=677"}],"version-history":[{"count":1,"href":"https:\/\/tollana.d-tor.org\/notes-to-self\/index.php?rest_route=\/wp\/v2\/posts\/677\/revisions"}],"predecessor-version":[{"id":678,"href":"https:\/\/tollana.d-tor.org\/notes-to-self\/index.php?rest_route=\/wp\/v2\/posts\/677\/revisions\/678"}],"wp:attachment":[{"href":"https:\/\/tollana.d-tor.org\/notes-to-self\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=677"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tollana.d-tor.org\/notes-to-self\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=677"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tollana.d-tor.org\/notes-to-self\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}