>>>>> "Peter" == Peter Chubb <peter@xxxxxxxxxxxxxxxxxx> writes: >>>>> "Bjorn" == Bjorn Helgaas <bjorn.helgaas@xxxxxx> 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 - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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