Date: Fri, 30 Jun 2006 20:29:28 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-hackers@freebsd.org Subject: contiguous memory allocation problem Message-ID: <200606302029.28563.hselasky@c2i.net> In-Reply-To: <200606131939.23799.hselasky@c2i.net> References: <200605271102.19799.hselasky@c2i.net> <200606021556.00231.hselasky@c2i.net> <200606131939.23799.hselasky@c2i.net>
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Hi, 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 am thinking about pre-allocating some memory for USB, but isn't that the job of bus-dma, which the USB system uses for memory allocation? The machine in question is running FreeBSD 7-current from April. Any comments? Thanks, --HPS
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