Messages in this thread | | | Subject | Re: cmpci: dma buffer crosses 64k boundary | Date | Mon, 27 Dec 1999 21:25:36 +0000 (GMT) | From | Alan Cox <> |
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> I have been getting this in my syslog ALOT recently..
2.2.x had the property that ISA DMA get free pages always aligned on power of two boundaries equivalent to the size. This appears to have broken with the Zone changes probably. Several sound drivers, some network drivers and a few other programs reply on this property. The alternative to fix is to waste 64K of memory for every 128K such drivers allocate. Im not willing to even look at that option until the new code has settled down and I have time to figure out if its definitely the cause and if its easily fixable.
Alan
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