Aurelien Jarno a écrit : > Aurelien Jarno a écrit : >> Avi Kivity a écrit : >>> Aurelien Jarno wrote: >>>> Avi Kivity a écrit : >>>> >>>>> Aurelien Jarno wrote: >>>>> >>>>>> Hi all, >>>>>> >>>>>> That's not something new, but I never seen the problem mentioned here. >>>>>> FreeBSD does not work on KVM, approximately since the lapic merge. >>>>>> >>>>>> However, that does not seem related to lapic, as using -no-kvm-irqchip >>>>>> does not help. With -no-kvm I get a page fault in kernel mode, while the >>>>>> normal QEMU (0.9.0 or CVS) does not have this problem. >>>>>> >>>>>> This can be easily reproduced with the latest installation CD: >>>>>> ftp://ftp.freebsd.org/pub/FreeBSD/ISO-IMAGES-i386/6.2/6.2-RELEASE-i386-bootonly.iso >>>>>> >>>>>> >>>>>> >>>>> It complains about the RSDT checksum. Running with -no-acpi works >>>>> around the problem (it gets to some country selection screen). So it >>>>> looks like the ACPI tables are messed up. >>>>> >>>> The RSDT checksum problem is not new, but it was harmless on previous >>>> versions (like kvm-37). >>>> >>>> Using -no-acpi, I am able to boot the machine with -no-kvm, but the >>>> guest still hang with -no-acpi and with -no-kvm-irqchip or lapic >>>> enabled. At least on AMD64, I haven't tested yet on an Intel machine. >>>> >>>> >>> Looks like there is a compiler problem that's interfering here. A bios >>> compiled on one machine will boot fine on Intel, but on other machines >>> (unfortunately my work machines) will not. >>> >>> There is a separate issue with -no-acpi on AMD. Is there some version >>> where -no-acpi worked on AMD? >> It was working correctly before, up to kvm version 37. >> >> I also confirm that using -no-acpi fixes the problem. However, I have >> seen strange data corruption, even on Intel. >> >> Basically, booting a recently installed FreeBSD leads to the following >> message from the bootloader: "No kernel found". And the next time, I get >> from the *BIOS*: "Boot from Hard Disk failed: not a bootable disk". >> >> Looking at the disk image, the partition table (and maybe more?) has >> disappeared. This is with a raw image disk. >> >> If I pass either -no-kvm or -no-kvm-irqchip, the problem disappear. > > I have just got the problem with -no-kvm-irqchip, though it seems to > happen less often.
The data corruption seems to come from the userspace part, as I am not able to reproduce it with the kvm-45 module, and the kvm-44 userspace. -- .''`. Aurelien Jarno | GPG: 1024D/F1BCDB73 : :' : Debian developer | Electrical Engineer `. `' [EMAIL PROTECTED] | [EMAIL PROTECTED] `- people.debian.org/~aurel32 | www.aurel32.net ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. 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
