Re: [kvm-devel] amd64: does it ever work? ;)
On Monday 11 February 2008 12:58:07 Avi Kivity wrote: Amit Shah wrote: On Sunday 10 February 2008 17:01:46 Avi Kivity wrote: Michael Tokarev wrote: Ok, I finally got it working. The problem was 32/64 bits issue. I'm so used to 64bits kernel and 32bits userland - not a single thought occured to me that this might be problematic of some sort. I was always trying 32bits kvm usermode tools with 64bits kernels. Now I booted a 32bits kernel, and it finally worked. Oh well. Actually this is intended to work. I'll look into it. I think he means a 64-bit kernel in the guest with 32-bit userspace in guest -- that won't work. Why not? Hmm, I thought having 64-bit userland with 32-bit compat libraries was the only way of making that work. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] amd64: does it ever work? ;)
Michael Tokarev wrote: I first tried 64bit HOST kernel and 32bit host userspace. It didn't matter what to use as guest - it doesn't even try to boot. Okay. Fixed that bit for kvm-61. -- error compiling committee.c: too many arguments to function - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] amd64: does it ever work? ;)
Avi Kivity wrote: Amit Shah wrote: On Sunday 10 February 2008 17:01:46 Avi Kivity wrote: Michael Tokarev wrote: Ok, I finally got it working. The problem was 32/64 bits issue. I'm so used to 64bits kernel and 32bits userland - not a single thought occured to me that this might be problematic of some sort. I was always trying 32bits kvm usermode tools with 64bits kernels. Now I booted a 32bits kernel, and it finally worked. Oh well. Actually this is intended to work. I'll look into it. I think he means a 64-bit kernel in the guest with 32-bit userspace in guest -- that won't work. I first tried 64bit HOST kernel and 32bit host userspace. It didn't matter what to use as guest - it doesn't even try to boot. Speaking of 64bit host, 64bit guest kernel and 32bit guest userland - it just works. /mjt - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] amd64: does it ever work? ;)
Michael Tokarev wrote: Ok, I finally got it working. The problem was 32/64 bits issue. I'm so used to 64bits kernel and 32bits userland - not a single thought occured to me that this might be problematic of some sort. I was always trying 32bits kvm usermode tools with 64bits kernels. Now I booted a 32bits kernel, and it finally worked. Oh well. Actually this is intended to work. I'll look into it. -- error compiling committee.c: too many arguments to function - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] amd64: does it ever work? ;)
Amit Shah wrote: On Sunday 10 February 2008 17:01:46 Avi Kivity wrote: Michael Tokarev wrote: Ok, I finally got it working. The problem was 32/64 bits issue. I'm so used to 64bits kernel and 32bits userland - not a single thought occured to me that this might be problematic of some sort. I was always trying 32bits kvm usermode tools with 64bits kernels. Now I booted a 32bits kernel, and it finally worked. Oh well. Actually this is intended to work. I'll look into it. I think he means a 64-bit kernel in the guest with 32-bit userspace in guest -- that won't work. Why not? -- error compiling committee.c: too many arguments to function - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] amd64: does it ever work? ;)
Hello Michael, On Friday 01 February 2008 13:30:03 Michael Tokarev wrote: Hello! A first-time poster (and user) is here... but not a newbie ;) 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? 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. Thanks! /mjt Amit - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] amd64: does it ever work? ;)
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/vse012070mrt/direct/01/ ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] amd64: does it ever work? ;)
Michael Tokarev wrote: Amit Shah wrote: [] 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) Ok. I compiled kvm-60, loaded the modules and tried something simple as usual. Unlike previously, the host didn't reboot, and kvm window stayed blank. But now there's at least something in dmesg: loaded kvm module (kvm-60) emulation failed (pagetable) rip fff0 00 00 00 00 Is it something which can help? Thanks! /mjt - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
Re: [kvm-devel] amd64: does it ever work? ;)
Michael Tokarev wrote: Amit Shah wrote: On Friday 01 February 2008 13:30:03 Michael Tokarev wrote: [] 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) Ok, I finally got it working. The problem was 32/64 bits issue. I'm so used to 64bits kernel and 32bits userland - not a single thought occured to me that this might be problematic of some sort. I was always trying 32bits kvm usermode tools with 64bits kernels. Now I booted a 32bits kernel, and it finally worked. Oh well. /mjt - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
