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Limit DMA memory to lower addressable 4GB, without this patch, we

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can reliably provoke data corruption on systems equipped with a
plenty of memory during high load.

Reported by:	gnn via iXsystems
MFC candidate:	RELENG_7_1, RELENG_7
This commit is contained in:
Xin LI 2008-10-06 22:34:17 +00:00
parent f78d85eb96
commit c94526e26d
1 changed files with 4 additions and 4 deletions
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8
sys/dev/twa/tw_osl_freebsd.c
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@ -492,7 +492,7 @@ tw_osli_alloc_mem(struct twa_softc *sc)
if (bus_dma_tag_create(NULL, /* parent */
sc->alignment, /* alignment */
0, /* boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
TW_CL_MAX_IO_SIZE, /* maxsize */
@ -515,7 +515,7 @@ tw_osli_alloc_mem(struct twa_softc *sc)
if (bus_dma_tag_create(sc->parent_tag, /* parent */
sc->alignment, /* alignment */
0, /* boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
dma_mem_size, /* maxsize */
@ -562,7 +562,7 @@ tw_osli_alloc_mem(struct twa_softc *sc)
if (bus_dma_tag_create(sc->parent_tag, /* parent */
sc->alignment, /* alignment */
0, /* boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
TW_CL_MAX_IO_SIZE, /* maxsize */
@ -588,7 +588,7 @@ tw_osli_alloc_mem(struct twa_softc *sc)
if (bus_dma_tag_create(sc->parent_tag, /* parent */
sc->alignment, /* alignment */
0, /* boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
TW_CL_MAX_IO_SIZE, /* maxsize */