id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host 4413,VirtualBox 3.0 reboots system with RHEL 5.3 x64 host OS,Jeff Haferman,," I just upgraded to VirtualBox 3.0 on a RHEL 5.3 machine 64-bit, and when I try to start it up, it brings the whole machine down (hard re-boot). I'm going to revert to 2.2.4 for now... the only thing I can find are a few lines in /var/log/messages: Jul 6 12:19:20 lx57 kernel: VBoxDrv: dbg - g_abExecMemory=ffffffff88e6db00[[BR]] Jul 6 12:19:20 lx57 kernel: vboxdrv: fAsync=0 offMin=0x73f offMax=0x1593[[BR]] Jul 6 12:19:20 lx57 kernel: vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'.[[BR]] Jul 6 12:19:20 lx57 kernel: VBoxNetFlt: dbg - g_abExecMemory=ffffffff890a9ae0[[BR]] I can't get a core dump because it crashes hard, I don't even get a VBox.log file. This is kernel 2.6.18-128.1.16.el5 ",defect,closed,VMM,VirtualBox 3.0.0,fixed,,,other,Linux