15 Change log 15.27 Version 2.1.2 (2009-01-21) This is a maintenance release. The following items were fixed and/or added: • USB: Linux host support fixes (bug #3136) • VMM: fixed guru meditation for PAE guests on non-PAE hosts (AMD-V) • VMM: fixed guru meditation on Mac OS X hosts when using VT-x • VMM: allow running up to 1023 VMs on 64-bit hosts (used to be 127) • VMM: several FreeBSD guest related fixes (bugs #2342, #2341, #2761) • VMM: fixed guru meditation when installing Suse Enterprise Server 10U2 (VT-x only bug #3039) • VMM: fixed guru meditation when booting Novell Netware 4.11 (VT-x only bug #2898) • VMM: fixed VERR_ADDRESS_TOO_BIG error on some Mac OS X systems when starting a VM • VMM: clear MSR_K6_EFER_SVME after probing for AMD-V (bug #3058) • VMM: fixed guru meditation during Windows 7 boot with more than 2 GB guest RAM (VT-x, nested paging only) • VMM: fixed hang during OS/2 MCP2 boot (AMD-V and VT-x only) • VMM: fixed loop during OpenBSD 4.0 boot (VT-x only) • VMM: fixed random crashes related to FPU/XMM with 64 bits guests on 32 bits hosts • VMM: fixed occasional XMM state corruption with 64 bits guests • GUI: raised the RAM limit for new VMs to 75% of the host memory • GUI: added Windows 7 as operating system type • VBoxSDL: fixed -fixed fixedmode parameter (bug #3067) • Clipboard: stability fixes (Linux and Solaris hosts only, bug #2675 and #3003) • 3D support: fixed VM crashes for certain guest applications (bugs #2781, #2797, #2972, #3089) • LsiLogic: improved support for Windows guests (still experimental) • VGA: fixed a 2.1.0 regression where guest screen resize events were not properly handled (bug #2783) • VGA: significant performance improvements when using VT-x/AMD-V on Mac OS X hosts • VGA: better handling for VRAM offset changes (fixes GRUB2 and Dos DOOM display issues) • VGA: custom VESA modes with invalid widths are now rounded up to correct ones (bug #2895) • IDE: fixed ATAPI passthrough support (Linux hosts only bug #2795) • Networking: fixed kernel panics due to NULL pointer dereference in Linux kernels 2.6.20 (Linux hosts only bug #2827) 224