{"id":7482,"date":"2014-06-19T04:03:22","date_gmt":"2014-06-19T04:03:22","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/06\/19\/problem-about-hypervisor-collection-of-common-programming-errors\/"},"modified":"2014-06-19T04:03:22","modified_gmt":"2014-06-19T04:03:22","slug":"problem-about-hypervisor-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2014\/06\/19\/problem-about-hypervisor-collection-of-common-programming-errors\/","title":{"rendered":"problem about hypervisor-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/a2b11b9662b5155aada74191fbe7cb9e?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nMSalters<br \/>\nvirtualization hypervisor<br \/>\nModern hardware-assisted desktop virtualization products (like VMWare Workstation or VirtualBox) normally provide the guest OS with a virtual graphics adapter that has a limited functionality.Is it possible to switch the adapters, i.e provide guest OS with direct access to the real graphics adapter, and assign a virtual graphics adapter to the host OS? Is there any software that has this functionality? If not, is it possible to develop such system? Let&#8217;s assume we only have a single guest OS.<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/c45b77767b7d2d93bdbb1483bfae59c5?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nGil<br \/>\nvirtualization out-of-memory g-wan hypervisor<br \/>\nI have a fc14 32 bit system with 2.6.35.13 custom compiled kernel. When I try to start G-wan I get a &#8220;Segmentation fault&#8221;.I&#8217;ve made no changes, just downloaded and unpacked the files from g-wan site.In the log file I have: &#8220;[Wed Dec 26 16:39:04 2012 GMT] Available network interfaces (16)&#8221; which is not true, on the machine i have around 1k interfaces mostly ppp interfaces.I think the crash has something to do with detecting interfaces\/ip addresses because in the log after the above line I have<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/33917e8a8f073eda0172abd17a9b221e?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nJames Green<br \/>\nubuntu xen ext3 hypervisor data-loss<br \/>\nI have a Xen domU provided by a third party, running Ubuntu (10.04, server edition, stock -server kernel). This server runs Dovecot and Exim4, with mail stored in Maildirs, and runs a fairly typical LAMP stack with most applications in Perl, and all data stored either in a directory tree full of TIFF files, or a MySQL DB. This server has been operation for around 3 months for LAMP stuff, and a month serving mail. All filesystems (except swap) are Ext3.A couple of weeks ago we suddenly found a wh<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/033722e68d59c812e138c59bf33da8fb?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\ndotdot<br \/>\nvirtualization hypervisor<br \/>\nI&#8217;ve started reading about VMM and wondered to myself how does the hypervisor knows a privileged instruction (for ex, cpuid) happened inside a VM and not real OS ?let&#8217;s say I&#8217;ve executed cpuid, a trap will occur and a VMEXIT would happen, how does the hypevisor would know that the instruction happened inside my regular OS or inside a VM ?<\/li>\n<\/ul>\n<p>Web site is in building<\/p>\n<p>I discovery a place to host code\u3001demo\u3001 blog and websites.<br \/>\nSite access is fast but not money<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.m5zn.com\/newuploads\/2014\/01\/30\/jpg\/e7da807964b1fff.jpg\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>MSalters virtualization hypervisor Modern hardware-assisted desktop virtualization products (like VMWare Workstation or VirtualBox) normally provide the guest OS with a virtual graphics adapter that has a limited functionality.Is it possible to switch the adapters, i.e provide guest OS with direct access to the real graphics adapter, and assign a virtual graphics adapter to the host [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7482","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/7482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=7482"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/7482\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=7482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=7482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=7482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}