On Thu, Oct 14, 2010 at 06:41:20PM -0300, Daniel Requena wrote: > Package: xen-hypervisor-4.0-amd64 > Version: 4.0.1-1 > > Hardware specs: > > Dell PowerEdge R410 > 32GB RAM DDR3 > 1TB RAID-1 HD (Perc H200 RAID controller) > Processor: 2 - Intel XeonE5620 2.4Ghz 12M Cache Turbo HT 1066MHz > > SO: Debian Squeeze > last update: 14/10/2010 > uname -a: "Linux spo-r1-u4 2.6.32-5-xen-amd64 #1 SMP Fri Sep 17 22:00:48 > UTC 2010 x86_64 GNU/Linux" > > At boot, xen-hypervisor is loaded normally, but when it tries to load > linux kernel it freezes. There is no screen output and after a few > seconds, the server reboots. > However, the problem doesn't happen if "acpi=off" parameter is used on > grub xen-hypervisor entry OR if the virtualization flags are disabled on > the BIOS. > Using the "acpi=off" parameters Xen is not able to detect the 16 cores > (8 fisical with hyperthread), only 8 cores. If the virtualization flags > are disabled all the 16 cores are detect. >
You should use a serial console (or SOL) and capture the full boot messages (and errors) from Xen and from dom0 Linux kernel. Use These options for Xen hypervisor (xen.gz): dom0_mem=1024M loglvl=all guest_loglvl=all sync_console console_to_ring com1=115200,8n1 console=com1 lapic=debug apic_verbosity=debug apic=debug iommu=off Fix the com1 stuff to match your serial/SOL setup. And these parameters for the dom0 Linux kernel (vmlinuz): console=hvc0 earlyprintk=xen nomodeset initcall_debug debug loglevel=10 For more information: http://wiki.xensource.com/xenwiki/XenSerialConsole -- Pasi > Xen grub entry: > > menuentry 'Debian GNU/Linux, with Linux 2.6.32-5-xen-amd64 and XEN > 4.0-amd64' --class debian --class gnu-linux --class gnu --class os > --class xen { > insmod part_msdos > insmod ext2 > set root='(hd0,msdos2)' > search --no-floppy --fs-uuid --set 935213fd-c3c6-49ad-b818-a3b67704c585 > echo 'Loading Linux 2.6.32-5-xen-amd64 ...' > multiboot /xen-4.0-amd64.gz placeholder acpi=off module > /vmlinuz-2.6.32-5-xen-amd64 placeholder root=/dev/mapper/main-root ro > quiet > echo 'Loading initial ramdisk ...' > module /initrd.img-2.6.32-5-xen-amd64 > } > > > > > _______________________________________________ > Pkg-xen-devel mailing list > pkg-xen-de...@lists.alioth.debian.org > http://lists.alioth.debian.org/mailman/listinfo/pkg-xen-devel -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
