>>>>> "Peter" == Peter Chubb <[EMAIL PROTECTED]> writes:

>>>>> "Bjorn" == Bjorn Helgaas <[EMAIL PROTECTED]> writes:

Bjorn> Example memory map (from HP sx1000 with VGA enabled): 0x00000 -
Bjorn> 0x9FFFF supports only WB (cacheable) access 0xA0000 - 0xBFFFF
Bjorn> supports only UC (uncacheable) access 0xC0000 - 0xFFFFF
Bjorn> supports only WB (cacheable) access

Bjorn> Some versions of X map the entire 0x00000-0xFFFFF area at once.
Bjorn> With the example above, this mmap must fail because there's no
Bjorn> memory attribute that's safe for the entire area.

Peter> This patch breaks X on a ZX2000.

Except that there is a fix in the latest X source.

Sorry to bother you all.

PeterC
--
Dr Peter Chubb  http://www.gelato.unsw.edu.au  peterc AT gelato.unsw.edu.au
http://www.ertos.nicta.com.au           ERTOS within National ICT Australia
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