Hi, I installed xen-server using " sudo apt-get install " and I got the following virtual memory layout on my system. [ 0.515286] virtual kernel memory layout: [ 0.515287] fixmap : 0xf568f000 - 0xf57ff000 (1472 kB) [ 0.515288] pkmap : 0xf5400000 - 0xf5600000 (2048 kB) [ 0.515289] vmalloc : 0xee000000 - 0xf53fe000 ( 115 MB) [ 0.515290] lowmem : 0xc0000000 - 0xed800000 ( 728 MB) [ 0.515291] .init : 0xc03f3000 - 0xc0425000 ( 200 kB) [ 0.515292] .data : 0xc0305f6e - 0xc03ed544 ( 925 kB) [ 0.515293] .text : 0xc0100000 - 0xc0305f6e (2071 kB) I compiled 2.6.26 kernel from Kernel.org and enabled XEN, with the following .config parameters, CONFIG_HIGHMEM64G=y CONFIG_XEN=y x86_32=y CONFIG_PARAVIRT_GUEST=y X86_CMPXCHG=y X86_TSC=y X86_PAE=y # CONFIG_X86_VOYAGER is not set # CONFIG_X86_VISWS is not set I want the above virtual memory layout from the compiled kernel but I get [ 27.546614] fixmap : 0xfff4d000 - 0xfffff000 ( 712 kB) [ 27.546615] pkmap : 0xff800000 - 0xffc00000 (4096 kB) [ 27.546616] vmalloc : 0xf8800000 - 0xff7fe000 ( 111 MB) [ 27.546617] lowmem : 0xc0000000 - 0xf8000000 ( 896 MB) [ 27.546618] .init : 0xc03e3000 - 0xc043e000 ( 364 kB) [ 27.546619] .data : 0xc02f7e86 - 0xc03dce84 ( 915 kB) [ 27.546620] .text : 0xc0100000 - 0xc02f7e86 (2015 kB) Will there be something extra I need to do ? Moreover, can the 168M memory hole that gets created for the hypervisor be used in the kernel space ?? Thanks in advance, -Regmee _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel