Date: Tue, 14 Oct 2008 19:02:47 +0000 (UTC) From: Xin LI <delphij@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r183892 - stable/7/sys/dev/twa Message-ID: <200810141902.m9EJ2lKt013833@svn.freebsd.org>
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Author: delphij Date: Tue Oct 14 19:02:47 2008 New Revision: 183892 URL: http://svn.freebsd.org/changeset/base/183892 Log: MFC r183660: Limit DMA memory to lower addressable 4GB, without this patch, we can reliably provoke data corruption on systems equipped with a plenty of memory during high load. Approved by: re (kib) Modified: stable/7/sys/dev/twa/ (props changed) stable/7/sys/dev/twa/tw_osl_freebsd.c Modified: stable/7/sys/dev/twa/tw_osl_freebsd.c ============================================================================== --- stable/7/sys/dev/twa/tw_osl_freebsd.c Tue Oct 14 18:24:40 2008 (r183891) +++ stable/7/sys/dev/twa/tw_osl_freebsd.c Tue Oct 14 19:02:47 2008 (r183892) @@ -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 */
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