On Thu, Mar 10, 2005 at 04:49:20PM +0800, Jason Luo wrote: > A data acquisition card. In DMA mode, the card need 200M contiguous > memory for DMA.
ick? it can't do scatter-gather or anything sane? > it's driver in windows can do it. windows can get 200MB of memory on a running system relaibly? does it swap like mad when you do this? > so custom ask us to support it. are there a way although it'is > unpopular? you could allocate the memory at boot-time just for the driver, hacky but would work there are a couple of patches/methods for doing this. i think a search for bigphysarea on google might help? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
