Gregory Haskins wrote: > Solved Issue 2) "exception 12" during BIOS real-mode execution on kvm-15. I > bisected this down to svn revision 4423. When I backed out the bios.bin to > the previous version, I am now able to get the later code to boot (14-16). > Note that the CDROM is now inaccessible (to be discussed below). I am not > sure how best to permanently fix this, as im sure 4423 was made for a reason. > >
4423 is a hack, and a bad one. I would love to see it go away. Proper real mode support would eliminate it, but maybe there's a better hack to real mode segmentation we can apply in the meantime. > New problems: > > New Issue 1) Now that the #UD is fixed (under 12 and 13 at least), grub is > still craping out on me). I have not investigated this further, but perhaps > it is another 32 bit compat mode issue. TBD > > New Issue 2) I think the QEMU 0.9.0 stuff is causing problems for me w.r.t. > devices, specifically the CDROM. I had played around in the 0.9.0 branch > back before the merge to the trunk (and before the 4423 checkin) and saw the > same problem. However, I didnt report it then because I knew things were > wildly in flux in the branch. I am sad to report that whatever I was seeing > in those early days still seems to be an issue however. Here is the > behavior I see: > > I am using a SLED-10-x86_64.iso for the --cdrom. When the guest powers up, > I get the standard suse SYSLINUX boot choices. This means that at a > fundamental level (e.g. eltorito, int13, etc) the BIOS is functioning. > However, if I then try to boot the kernel (e.g. with "rescue mode") it > complains that it cannot find the CDROM (from within the linux kernel > itself). Without digging deeper, I would guess that the drivers in linux > (ATAPI, etc) are probably either erroneously not seeing the device, or are > getting a false "empty" report from the drive. Any tips on any good > facilities that exist in qemu/kvm on how to debug this would be appreciated. > Otherwise I will try to see if I can come up with an easy way to get a debug > kernel loaded to report what the problem is in more detail. > Does the problem also occur with stock qemu-0.9.0? -- error compiling committee.c: too many arguments to function ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
