Iam porting the device driver form x86_64 to IA64 mechine
now i am facing the problem with ioremap()
I am using large buffer like 256MB reserved with elilo.conf, after booting iam mapping the real memory into kernel space.
retaddr = ioremap(0x80000000,(256*1024*1024));
retaddr value is 0xC000000080000000
when iam trying to write / read retaddr system reboots

can any body help ME

thanking in advance

Srinivas Reddy. CH
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