contiguous memory allocation problem
Peter Jeremy
peterjeremy at optushome.com.au
Fri Jun 30 20:32:35 UTC 2006
On Fri, 2006-Jun-30 20:29:28 +0200, Hans Petter Selasky wrote:
>I sometimes see that the USB driver is unable to allocate contiguous memory
>for itself. For example I noticed that FreeBSD was unable to allocate
>350kbytes of contiguous memory after that I had run "konqueror", the KDE web
>browser and various other memory consuming applications for a while.
I reported this about 18 months ago and I'm fairly certain you even
contributed to the thread at the time.
>Any comments?
The latest concensus seems to be that the USB system should make use of
the scatter-gather facilities in the hardware to avoid the need to
allocate large contiguous memory chunks. iedowse@ had mostly finished
implementing this in mid May.
--
Peter Jeremy
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