DragonFly commits List (threaded) for 2004-04
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cvs commit: src/sys/i386/i386 busdma_machdep.c
joerg 2004/04/19 06:37:44 PDT
DragonFly src repository
Modified files:
sys/i386/i386 busdma_machdep.c
Log:
In contrast to FreeBSD 4 and 5, our slab allocator does hand out cross-page
allocations. This broke bus_dmamem_alloc, which depends on allocation of
size < PAGE_SIZE to not cross pages.
As a temporary workaround, bus_dmamem_alloc checks explicitly wether an
allocation crossed page boundaries and retries the allocation with size
rounded up to the next power-of-two.
Revision Changes Path
1.9 +13 -0 src/sys/i386/i386/busdma_machdep.c
http://www.dragonflybsd.org/cvsweb/src/sys/i386/i386/busdma_machdep.c.diff?r1=1.8&r2=1.9&f=h
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