[Xen-devel] How to build non-PAE dom0 kernel with Xen-3.2-testing (PAE-disabled)?

[Abhinav Srivastava <abhinavs_iitkgp@xxxxxxxxxxx>]

Hi there,

I am trying build Xen-3.2-testing version (directly fetched from mercury) on my 
Intel Core 2 Quad desktop. The desktop has got 4GB of RAM and currently running 
Fedora 8. I built Xen with PAE disabled (modified the Config.mk file) and 
rebooted my machine, but it gave me kernel panic error. The message that I saw 
was "Mismatch occurred.
Xen 32-bit lsb, Dom0 32-bit PAE, lsb"

I tried different ways to disable PAE support from the dom0 but none of them 
worked. I built the same xen version on my laptop (Intel Core 2 duo with 2GB of 
RAM) 2 months back and I got PAE disabled thing working. 

This time I saw a new parameter "CONFIG_X86_PAE=Y" in the .config file inside 
the build-linux-2.6.18-xen_x86_32 directory. If I try to make 
"CONFIG_X86_PAE=N" in the .config file, it does not work as this file gets 
generated everytime. When I checked the build-linux-2.6.18-xen_x86_3/.config 
file of my laptop installation, I did not see such configuration parameters.

Is it introduced recently or depending upon the machine it gets added 
on-the-fly? In any case, how to build dom0 kernel with non-PAE support. I 
really want to build all non-pae kernels for my research work perspective.

Please let me know someway/settings so that I could build non-pae dom0 kernel. 

Any help would be highly appreciated.

Thanks,
Abhinav


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