{"id":135167,"date":"2026-02-26T11:06:00","date_gmt":"2026-02-26T11:06:00","guid":{"rendered":"http:\/\/webdomino.net\/?guid=e3b2fdbf126507a62e360bab7a5dc2e4"},"modified":"2026-02-26T11:06:00","modified_gmt":"2026-02-26T11:06:00","slug":"another-subprocess-for-vmd8","status":"publish","type":"post","link":"https:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/","title":{"rendered":"Another subprocess for vmd(8)"},"content":{"rendered":"\n<p>Dave Voutila (<code>dv@<\/code>)\r\nhas continued his work on moving\r\n<a href=\"https:\/\/man.openbsd.org\/vmd.8\"><code>vmd(8)<\/code><\/a>\r\nto a multi-process model.\r\n(<i>Undeadly<\/i>\r\n<a href=\"http:\/\/undeadly.org\/cgi?action=article;sid=20230430051250\">first reported<\/a>\r\non this in 2023.)\r\nThis time the\r\n<code>virtio scsi<\/code> device has been\r\n<a href=\"https:\/\/marc.info\/?l=openbsd-cvs&amp;m=177180363608220&amp;w=2\">converted to a subprocess<\/a>:<\/p>\r\n\r\n<blockquote>\r\n<pre>CVSROOT:\t\/cvs\r\nModule name:\tsrc\r\nChanges by:\tdv@cvs.openbsd.org\t2026\/02\/22 15:54:54\r\n\r\nModified files:\r\n\tusr.sbin\/vmd   : vioscsi.c virtio.c virtio.h vmd.c vmd.h \r\n\r\nLog message:\r\nvmd(8): convert <a href=\"https:\/\/man.openbsd.org\/virtio.4\">virtio<\/a> <abbr>scsi<\/abbr> device to a subprocess.\r\n\r\nBreak the virtio scsi device (used as a <abbr>cd-rom<\/abbr> drive) into a\r\nsubprocess like the virtio block and network devices. This leaves\r\nonly the entropy device (<a href=\"https:\/\/man.openbsd.org\/viornd.4\">viornd<\/a>) and <a href=\"https:\/\/man.openbsd.org\/vmmci.4\">vmmci<\/a> device running in-process\r\nwith the <abbr>vcpus<\/abbr>.\r\n\r\nok mlarkin@\r\n<\/pre>\r\n<\/blockquote>\r\n\n\n","protected":false},"excerpt":{"rendered":"<p>Dave Voutila (dv@)<br \/>\nhas continued his work on moving<br \/>\nvmd(8)<br \/>\nto a multi-process model.<br \/>\n(Undeadly<br \/>\nfirst reported<br \/>\non this in 2023.)<br \/>\nThis time the<br \/>\nvirtio scsi device has been<br \/>\nconverted to a subprocess:<\/p>\n<p>CVSROOT:\t\/cvs<br \/>\nModule name:\tsrc<br \/>\nChanges&#8230;<\/p>\n","protected":false},"author":174,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[4132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Another subprocess for vmd(8) - WebDomino.NET<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Another subprocess for vmd(8) - WebDomino.NET\" \/>\n<meta property=\"og:description\" content=\"Dave Voutila (dv@) has continued his work on moving vmd(8) to a multi-process model. (Undeadly first reported on this in 2023.) This time the virtio scsi device has been converted to a subprocess:   CVSROOT: \/cvs Module name: src Changes...\" \/>\n<meta property=\"og:url\" content=\"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/\" \/>\n<meta property=\"og:site_name\" content=\"WebDomino.NET\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-26T11:06:00+00:00\" \/>\n<meta name=\"author\" content=\"OpenBSD Journal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"OpenBSD Journal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/\",\"url\":\"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/\",\"name\":\"Another subprocess for vmd(8) - WebDomino.NET\",\"isPartOf\":{\"@id\":\"https:\/\/webdomino.net\/#website\"},\"datePublished\":\"2026-02-26T11:06:00+00:00\",\"dateModified\":\"2026-02-26T11:06:00+00:00\",\"author\":{\"@id\":\"https:\/\/webdomino.net\/#\/schema\/person\/5e6479eaee9a98381747d6c8acf6be72\"},\"breadcrumb\":{\"@id\":\"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/webdomino.net\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Another subprocess for vmd(8)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/webdomino.net\/#website\",\"url\":\"https:\/\/webdomino.net\/\",\"name\":\"WebDomino.NET\",\"description\":\"Global NEWS WordPress site\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/webdomino.net\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/webdomino.net\/#\/schema\/person\/5e6479eaee9a98381747d6c8acf6be72\",\"name\":\"OpenBSD Journal\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/webdomino.net\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/57d768f58e5bcb4c2a506e4e9cbd3a40?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/57d768f58e5bcb4c2a506e4e9cbd3a40?s=96&d=mm&r=g\",\"caption\":\"OpenBSD Journal\"},\"sameAs\":[\"http:\/\/undeadly.org\/\"],\"url\":\"https:\/\/webdomino.net\/index.php\/author\/openbsd-journal\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Another subprocess for vmd(8) - WebDomino.NET","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/","og_locale":"en_US","og_type":"article","og_title":"Another subprocess for vmd(8) - WebDomino.NET","og_description":"Dave Voutila (dv@) has continued his work on moving vmd(8) to a multi-process model. (Undeadly first reported on this in 2023.) This time the virtio scsi device has been converted to a subprocess:   CVSROOT: \/cvs Module name: src Changes...","og_url":"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/","og_site_name":"WebDomino.NET","article_published_time":"2026-02-26T11:06:00+00:00","author":"OpenBSD Journal","twitter_misc":{"Written by":"OpenBSD Journal","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/","url":"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/","name":"Another subprocess for vmd(8) - WebDomino.NET","isPartOf":{"@id":"https:\/\/webdomino.net\/#website"},"datePublished":"2026-02-26T11:06:00+00:00","dateModified":"2026-02-26T11:06:00+00:00","author":{"@id":"https:\/\/webdomino.net\/#\/schema\/person\/5e6479eaee9a98381747d6c8acf6be72"},"breadcrumb":{"@id":"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/"]}]},{"@type":"BreadcrumbList","@id":"http:\/\/webdomino.net\/index.php\/openbsd\/another-subprocess-for-vmd8\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/webdomino.net\/"},{"@type":"ListItem","position":2,"name":"Another subprocess for vmd(8)"}]},{"@type":"WebSite","@id":"https:\/\/webdomino.net\/#website","url":"https:\/\/webdomino.net\/","name":"WebDomino.NET","description":"Global NEWS WordPress site","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/webdomino.net\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/webdomino.net\/#\/schema\/person\/5e6479eaee9a98381747d6c8acf6be72","name":"OpenBSD Journal","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/webdomino.net\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/57d768f58e5bcb4c2a506e4e9cbd3a40?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/57d768f58e5bcb4c2a506e4e9cbd3a40?s=96&d=mm&r=g","caption":"OpenBSD Journal"},"sameAs":["http:\/\/undeadly.org\/"],"url":"https:\/\/webdomino.net\/index.php\/author\/openbsd-journal\/"}]}},"_links":{"self":[{"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/posts\/135167"}],"collection":[{"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/users\/174"}],"replies":[{"embeddable":true,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/comments?post=135167"}],"version-history":[{"count":1,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/posts\/135167\/revisions"}],"predecessor-version":[{"id":135168,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/posts\/135167\/revisions\/135168"}],"wp:attachment":[{"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/media?parent=135167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/categories?post=135167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/webdomino.net\/index.php\/wp-json\/wp\/v2\/tags?post=135167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}