Date: Sun, 23 Mar 2008 13:57:43 -0500 (CDT) From: Mark Tinguely <tinguely@casselton.net> To: tinguely@casselton.net, yonyossef.lists@gmail.com Cc: freebsd-questions@freebsd.org Subject: Re: bus_dmamem_alloc Message-ID: <200803231857.m2NIvhVH015887@casselton.net> In-Reply-To: <20def4870803231006j70a32052oe318fbe5e739ed04@mail.gmail.com>
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> Actualy I'm not getting any error from bus_dmamem_alloc, that's the strange > thing. > Yet printing the dma_map pointer shows 0 unless I use bus_dmamap_create > after bus_dmamem_alloc. > bus_mamap_load doesn't fail in both cases. > > I'm working on an Ethernet driver for FreeBSD, pinging messages larger than > MTU crash the kernel at some point, I'm investigating the dma direction at > the moment. > > --Yony Maybe you could show a sequence of the code (bus_dma_tag_create(), bus_dmamem_alloc() etc). --Mark Tinguely.
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