Amit Shah wrote: > On Friday 01 February 2008 13:30:03 Michael Tokarev wrote:
>> Some time ago I tried KVM for the first time, on an AMD X2-64 system >> (BE-2400 processor, also tried with other similar processors, like >> "plain" X2-64 4888+ etc), first with 2.6.23 vanilla kernel compiled >> for 64 bits, SMP. After it didn't work, I also tried KVM modules >> from SVN (compiled against the same kernel sources), and when 2.6.24 >> was out, I tried that too. Neither of which works. > > KVM doesn't have an SVN tree; do you mean git? Err... It was totally screwed up. I tried kvm-59 release from sourceforge, not git (and definitely not svn :) Right now I'm compiling kvm-60. >> Userspace tools is from Debian unstable -- 58+dfsg-1. >> >> The effect is as follows. >> >> With 2.6.23 and vanilla kvm modules, while from X, it opens the >> "virtual console" (an X window), but that console is entirely >> empty (black), and nothing more happens. I can Ctrl+C the original >> process, but nothing more. >> >> With 2.6.23+modules-59, and with vanilla 2.6.24, it again opens >> the window, and the HOST machine immediately reboots (goes into >> BIOS Post screen). >> >> When not loading kvm modules, it works in all 3 cases. >> >> Where to look at to debug it further? > > Can you check if you have any BIOS updates? This seems like BIOS support for > SVM might be half-baked. Well.. I tried it on 2 different motherboards with 2 different CPUs (in all 4 permutations): Biostar TA690G-AM2 - AMD690G chipset, latest BIOS (dated 09-2007) ASUS M2NPV-VM - Geforce6150/Nforce430(?) (MCP51), latest BIOS (dated 11-2007) The effect on both is exactly the same. So I don't think it's a BIOS problem after all. Maybe some kernel option(s) (like tickless (dynticks) for example - but 2.6.23 x86-64 didn't have that option). But with so many options I'm afraid I can't tell which to try to turn off... ;) Thanks! /mjt ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
