dma_alloc_coherent fails

From: Maximus
Date: Fri Jun 01 2007 - 12:46:54 EST


Hi,
Am using a linux 2.6.19 kernel for arm. the dma_alloc_coherent
function call in the kernel for 38400 bytes fails.


Has anyone faced this problem before?.


What could be make dma_alloc_coherent to success sometimes and fail sometimes?.

Regards,
John
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