Date: Fri, 16 Sep 2011 02:02:37 +0700 From: Eugene Grosbein <egrosbein@rdtc.ru> To: pyunyh@gmail.com Cc: stable@freebsd.org, John Baldwin <jhb@freebsd.org>, yongari@freebsd.org Subject: Re: busdma MFC broke ipfw fwd for RELENG_6 Message-ID: <4E724BCD.4040607@rdtc.ru> In-Reply-To: <20110915181524.GA6557@michelle.cdnetworks.com> References: <4E722B70.9010201@rdtc.ru> <201109151314.50549.jhb@freebsd.org> <4E7238C3.1060008@rdtc.ru> <20110915181524.GA6557@michelle.cdnetworks.com>
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16.09.2011 01:15, YongHyeon PYUN пишет: > I remember re(4) in 6.x also have a couple of bus_dma(9) bugs. How > about applying the following revision? > http://svnweb.freebsd.org/base?view=revision&revision=175337 > Not sure whether it shall apply cleanly. It does not and there is too much differences in the code for my skills to apply manually :-) > Alternatively try replacing BUS_DMA_ALLOCNOW to 0 in > bus_dma_tag_create(9). I'm not sure I undersdand this right... Do you mean this change? This is the only place in busdma_machdep.c where BUS_DMA_ALLOCNOW is used. --- busdma_machdep.c.orig 2011-09-16 01:56:52.000000000 +0700 +++ busdma_machdep.c 2011-09-16 01:57:01.000000000 +0700 @@ -284,7 +284,7 @@ newtag->flags |= BUS_DMA_COULD_BOUNCE; if (((newtag->flags & BUS_DMA_COULD_BOUNCE) != 0) && - (flags & BUS_DMA_ALLOCNOW) != 0) { + (flags & 0) != 0) { struct bounce_zone *bz; /* Must bounce */ I'm going to lose control on this remote box if I apply wrong patch for re(4). Eugene Grosbein
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