id summary reporter owner description type status component version resolution keywords cc guest host 4788 SCSI does not work if ACPI is disabled Marcin Krol "I'm using VirtualBox to test my embedded system and I have strange problems with SCSI on Linux guest. Everything works fine on distro kernels, for example vanilla one with this config: http://cvs.pld-linux.org/cgi-bin/cvsweb/packages/kernel-vanilla/kernel-vanilla-x86.config?rev=1.1.2.21 And when using my own kernel which I prepared for my embedded system it doesn't work. Here is config which this kernel uses: http://cvs.pld-linux.org/cgi-bin/cvsweb/packages/kernel-CRI/kernel-CRI-x86.config?rev=1.1.2.16 When I configure BusLogic controller I got this in dmesg and attached virtual disks are not visible at all: http://pld.pastebin.com/f2cb2a When configured as LSI Logic that appears in dmesg and modprobe hangs disallowing to load any other ide/sata/scsi module: http://pld.pastebin.com/f2553d876 When configured as SATA AHCI disks are visible, but terribly slow. It may look at as a kernel misconfiguration but the very same kernel that fails under VirtualBox works just fine on various real hardware SCSI controllers and under VMware 5.x which I digged out from my archives. I'd be thankfull for any ideas how to get it working under VirtualBox too." defect closed other VirtualBox 3.0.4 fixed scsi Linux Linux