On Fri, Aug 5, 2011 at 7:45 AM, Kenneth J. Davis <jere...@fdos.org> wrote: > Work in progress ... > As a side note, on my netbook using similar VirtualBox setup I have > found that I can only use devload without any memory managers - > something related to no UMBs so I need to see if it is a devload, > kernel, freecom or other issue. If anyone can reproduce and/or help > track down the memory corruption issue that would be great. > > Thanks for the testing and code review! > Jeremy >
I finally had a chance to do some testing. I believe it is a VirtualBox bug. I tried with FreeCom and 4DOS, with JemmEx and XMGR (and no memory manager), I did not change kernels yet, and two different computers. The issue is exactly the same on both computers. If VT-x/AMD-V is enabled then everything works fine, without it the first invocation of devload either freezes the virtual computer or prints garbage and exits. I did try various settings including NOEMS NOVME NOINVLPG X=A000-EFFF and it makes no difference. Oh well, I may have to switch my testing over to VMWare as I've never had these weird issues with it. I can upload my disk image and ova file if anyone else wants to do further research. Jeremy ------------------------------------------------------------------------------ uberSVN's rich system and user administration capabilities and model configuration take the hassle out of deploying and managing Subversion and the tools developers use with it. Learn more about uberSVN and get a free download at: http://p.sf.net/sfu/wandisco-dev2dev _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
