Mark,
   I am getting that message when I begin the install process.
   If I run it with "noacpi" option set, then I can install and  
run fc6 just
   fine.
   However, xen kernel wouls still panic on CPU0 and will not load.
   I'm not limited to running fc6, so, if you know of other Linux  
flavor that
   will play well with my hardware as Dom0, I'll be glad to give  
it a try.
   As an alternative, I could get a different set of hardware,  
but, again - I
   do not know which combination will work well.
   Let me know what you think.
   -Eugene
   ï
   On Apr 25, 2007, at 2:02 PM, mark pryor wrote:
     Eugene,
     Are you getting that message when you begin the install?
     If you have Knoppix, try running that since the time invested is
     minimal. If it runs clean then you know it might be kernel  
conflict in
     FC6. I have to admit I've yet to try and setup FC6 on the AM2  
board.
     If you want to be very_safe, try to shutdown, reset the bios,  
and start
     over with
     "set optimal defaults" for your board.
     Then run memtest86 through test 4 or 5
     I feel your pain ... it seems that the AM2 form factor is  
very green
     banana -- not ripe enough for good taste.
     Mark
     Yevgeniy Goldberg <[1]thegoldberg@xxxxxxx> wrote:
       Mark,
       I'je just attempted to do a fresh install of fc6 x86_64  
(just to be
       sure)
       I've encountered the same error as before.
       here is the actual error message:
       ACPI: Core revision 20060707
       MP-BIOS bug: 8254 timer not connected
       Kernel panic - not syncing: IO-APIC + timer does not work!
       Try using 'noapic' parameter
       What do you think?
       -Eugene
       On Apr 25, 2007, at 12:52 PM, mark pryor wrote:
         Eugene,
         Looks fine -- its the 686 kernel.
         What I've noticed about Abit kn9 is that default DDR2  
voltage is too
         low for most RAM!
         Be sure that you use the latest bios (go to the abit site  
for your
         model and check) and get some idea what voltage your RAM  
needs. Most
         of the new DDR2 RAM needs at least 2.0 volts.ï I use 2.2  
volts to be
         safe.
         Also run
         #sensors-detect
         and see if your cpu is being throttled.
         Do
         #modprobe cpufreq_ondemand
         and see if the
         #sensors
         output changes. You might see cpu voltage start to throttle.
         cheers,
         Mark
         Yevgeniy Goldberg <[2]thegoldberg@xxxxxxx> wrote:
           Thanks, Mark
           Here is the output you have asked for:
           /usr/include/linux/kernel.h
           /usr/share/doc/selinux-policy-2.3.18/html/kernel.html
           /usr/share/doc/selinux-policy-2.3.18/html/ 
kernel_kernel.html
           /usr/src/kernels/2.6.18-1.2798.fc6-i686/include/config/ 
debug/kernel.h
           /usr/src/kernels/2.6.18-1.2798.fc6-i686/include/config/ 
lock/kernel.h
           /usr/src/kernels/2.6.18-1.2798.fc6-i686/include/linux/ 
kernel.h
           /usr/src/kernels/2.6.18-1.2798.fc6-i686/include/sound/ 
seq_kernel.h
           /usr/src/kernels/2.6.20-1.2944.fc6-i686/include/config/ 
debug/kernel.h
           /usr/src/kernels/2.6.20-1.2944.fc6-i686/include/config/ 
lock/kernel.h
           /usr/src/kernels/2.6.20-1.2944.fc6-i686/include/linux/ 
kernel.h
           /usr/src/kernels/2.6.20-1.2944.fc6-i686/include/linux/ 
start_kernel.h
           /usr/src/kernels/2.6.20-1.2944.fc6-i686/include/sound/ 
seq_kernel.h
           -Eugene
           On Apr 25, 2007, at 11:58 AM, mark pryor wrote:
             Eugene,
             What isn't clear is what arch of FC6 you installed.  
Somehow I
             don't think you installed the x86_64.
             If you installed the i386 version of FC6, then there  
is a known
             bug where the Anaconda installer will use 586 instead  
of 686.
             To check, do
             #updatedb
             #locate kernel.h
             show the complete path returned from above.
             Personally I'm running openSuSE 10.2 x86_64 and I'm  
able to boot
             Xen without issues. My domU's include WinXP sp2,  
BootitNG, and
             Knoppix 5.1
             good luck,
             Mark
             Yevgeniy Goldberg <[3]thegoldberg@xxxxxxx> wrote:
               Greetings!
               Just getting started with Xen.
               I've just assembled a brand-new PC with AMD Athlon  
64 x2.
               Upon loading Fedora Core 6 I've noticed that kernel  
panics
               unless
               set a boot option "noapic"
               With this option set I can load fc6 without xen.
               However, if I load Xen-enables fc6 it panics on  
boot stating a
               panic
               on CPU0 related to timer.
               Then the system goes into reboot so fast I can not  
even
               capture the
               entire error message.
               I've got this system specifically to run xen, so it is
               critical for
               me to be able to run fc6 with xen.
               Any help is highly appreciated.
               -Eugene
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