Date: Wed, 11 Nov 2009 19:13:40 +0000 (UTC) From: Jack F Vogel <jfv@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r199192 - head/sys/dev/e1000 Message-ID: <200911111913.nABJDewR004319@svn.freebsd.org>
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Author: jfv Date: Wed Nov 11 19:13:40 2009 New Revision: 199192 URL: http://svn.freebsd.org/changeset/base/199192 Log: With an i386 kernel the igb driver can cause a page fault panic on initialization due to a large number of bounce pages being allocated. This is due to the dma tag requiring page alignment on mbuf mapping. This was removed some time back from the ixgbe driver and is not needed here either. Modified: head/sys/dev/e1000/if_igb.c Modified: head/sys/dev/e1000/if_igb.c ============================================================================== --- head/sys/dev/e1000/if_igb.c Wed Nov 11 19:00:12 2009 (r199191) +++ head/sys/dev/e1000/if_igb.c Wed Nov 11 19:13:40 2009 (r199192) @@ -2654,7 +2654,7 @@ igb_dma_malloc(struct adapter *adapter, int error; error = bus_dma_tag_create(bus_get_dma_tag(adapter->dev), /* parent */ - IGB_DBA_ALIGN, 0, /* alignment, bounds */ + 1, 0, /* alignment, bounds */ BUS_SPACE_MAXADDR, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ @@ -2867,7 +2867,7 @@ igb_allocate_transmit_buffers(struct tx_ * Setup DMA descriptor areas. */ if ((error = bus_dma_tag_create(NULL, /* parent */ - PAGE_SIZE, 0, /* alignment, bounds */ + 1, 0, /* alignment, bounds */ BUS_SPACE_MAXADDR, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ @@ -3554,7 +3554,7 @@ igb_allocate_receive_buffers(struct rx_r ** it may not always use this. */ if ((error = bus_dma_tag_create(NULL, /* parent */ - PAGE_SIZE, 0, /* alignment, bounds */ + 1, 0, /* alignment, bounds */ BUS_SPACE_MAXADDR, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */
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