id summary reporter owner description type status component version resolution keywords cc guest host 14013 Guru Meditation 1155 (VINF_EM_TRIPLE_FAULT) for SLED host from 4.3.20 onward (SLES11 packages broken) msdits9 "We have Virtualbox installed on a number of Dell workstations and PCs, all running 64-bit SuSE Linux Enterprise Desktop. On upgrading from 4.3.18 to 4.3.20, our guest OSs (some Windows, some various flavours of linux, a mix of 32- and 64-bit) failed to boot on a number of older systems; attempting to start a guest OS leads to an immediate guest crash with a GM 1155 (VINF_EM_TRIPLE_FAULT) in the logs. This also occurs if you create a brand new guest; you can't even start installing an OS. All guests (bar the uninstalled ones, obviously) have Guest Additions installed. The problem has continued with the upgrades to 4.3.22, 4.3.24 and 4.3.26. Back-revving to 4.3.18 allows us to boot and run our guests again. Host Hardware tested which exhibits problem: Dell Precision T7400 - Dual Intel Xeon X5472; 12GB 800MHz DDR2; nVidia Quadro FX 570 Dell Precision T3500 - Single Intel Xeon W3530; 24GB 1333MHz DDR3; nVidia Quadro FX 580 Dell Optiplex 740 - AMD 64 X2 5000; 4GB 800MHz DDR2; nVidia GeForce 6150 LE Dell Optiplex 745 - Core 2 Duo E6600; 2GB 667MHz DDR2; Radeon X1300 Host Hardware tested which does not exhibit problem: Dell Precision T7910 - Single Xeon E5-2609; 32GB 2133MHz DDR4; nVidia Quadro K620 Attached VBox.log files for a range of guests, log name is ___VBox.log The 'newGuest' log files are the brand new guests (ie OS uninstalled)" defect closed other VirtualBox 4.3.20 fixed SuSE Linux Enterprise Guru Meditation 1155 VINF_EM_TRIPLE_FAULT other Linux