Xen users - Aug 2005 - Xen Kernel problem (DMA at Compilation)

Hi,     
     
I try to use XEN, but have some problems with getting it started on my     
machine. (My settings are listed at the bottom).     
     
My first problem is that if I boot into Xen the kernel hangs while     
booting, such that I have to do a hard reset. It doesn''t hang always at
the same place, but most often around the time when suse wants to start     
the suse firewall. However XEN boots when I turn DMA of. (ide=nodma).     
This is very annoying since I need DMA, so what can I do?       
     
I read somewhere that this could be caused by the generic IDE driver and    

one should compile only the specific IDE (PIIx...) driver into the     
kernel.      
     
I tried this but run into the following problem. I use the standard     
configuration file from Suse for Xen as placed     
in /boot/config-2.6.11.4-21.8-xen and changed some options (mainly only     
the IDE driver modules.)     
(make ARCH=xen menuconfig; make ARCH=xen all)     
However after compiling for a long time I see the following output.     
     
[...]     
 AR      arch/i386/lib/lib.a     
  GEN     .version     
  CHK     include/linux/compile.h     
  UPD     include/linux/compile.h     
  CC      init/version.o     
  LD      init/built-in.o     
  LD      .tmp_vmlinux1     
arch/xen/kernel/built-in.o(.text+0x85b): In function `ctrl_if_suspend'':
arch/xen/kernel/ctrl_if.c:466: undefined reference to `teardown_irq''
drivers/built-in.o(.text+0x45cf7): In function `balloon_process'':     
drivers/xen/balloon/balloon.c:275: undefined reference to     
`kmap_flush_unused''     
make: *** [.tmp_vmlinux1] Error 1     
     
What is causing the problem? How do I get arround this?     
Any specific options I must set (or must not set) in menuconfig to get     
the kernel compiled?   
   
Further, if I want to use the latest xen sources (like xen 2.0.7 or even   
unstable, how do I combine this with the provided (already patched) SUSE   
kernel sources?   
     
My settings:     
Compaq Armada M700 Laptop      
Suse 9.3 with Xen (latest Update as of today).     
gcc version 3.3.5 20050117 (prerelease) (SUSE Linux)    
Xen  2.0.5c    
(source) of kernel:/usr/src/linux-2.6.11.4-21.8   
(running) Kernel: vmlinuz-2.6.11.4-21.8-xen    
   
Help is very much appreciated, since I am totally stuck after several   
nights of trying out.   
 
(Please also reply to my email address since I am not subscribed)   
 
Best Regards,   
/Ra   

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