Soren Hansen wrote: > Esteemed kvm developers! > > I've been trying to debug this bug > > https://bugs.launchpad.net/ubuntu/+source/kvm/+bug/219165 > > It originally revealed itself by failing to run grub (which is a 32 bit > binary) when installing Ubuntu from our live cd. It turned out to be a > more general problem of 32 bit binaries failing to run. The server > install worked like a charm. I eventually discovered that loading the > vmmouse driver triggered it and narrowed it down to the call to > kvm_load_registers in vmport_ioport_read. > > We're releasing on Thursday, and I needed a quick fix, so I reverted the > calls to kvm_{save,load}_registers in vmport_ioport_read to the old code > that simply saved the eax, ebx, ecx, edx, esi, and edi registers, but > I'm supposing kvm_{load,save}_registers really should work here. >
Ah, you may have missed the fix that updated the KVM load/save functions to deal with the in-kernel APIC. It turns out, vmmouse was horribly broken with SMP guests too. See commit 9949bd84ac4dfdfc60b2974557819637b8719911 Author: Anthony Liguori <[EMAIL PROTECTED]> Date: Thu Apr 3 18:37:16 2008 -0500 commit 5208ce19dca268f84a2b9441c2fbb6129161e44c Author: Marcelo Tosatti <[EMAIL PROTECTED]> Date: Thu Apr 3 20:24:37 2008 -0300 commit 85a67aa2a1b942ddccfcbd625d280869367edc95 Author: Marcelo Tosatti <[EMAIL PROTECTED]> Date: Fri Apr 11 13:24:41 2008 -0300 Regards, Anthony LIguori > I dug a bit further into the code and tried disabling various pieces of > the kvm_load_registers until it finally worked again. The problem seems > to only arise when the lstar msr is loaded. I've looked at the code, but > seeing as three days ago I didn't know there was such a thing as an > lstar msr, I'm finding myself getting stuck. :) > > Any pointers in the right direction would be lovely. > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by the 2008 JavaOne(SM) Conference > Don't miss this year's exciting event. There's still time to save $100. > Use priority code J8TL2D2. > http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone > ------------------------------------------------------------------------ > > _______________________________________________ > kvm-devel mailing list > kvm-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/kvm-devel > ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
