Date: Thu, 15 Sep 2011 12:19:44 -0700 From: YongHyeon PYUN <pyunyh@gmail.com> To: Eugene Grosbein <egrosbein@rdtc.ru> Cc: stable@freebsd.org, John Baldwin <jhb@freebsd.org>, yongari@freebsd.org Subject: Re: busdma MFC broke ipfw fwd for RELENG_6 Message-ID: <20110915191944.GB6557@michelle.cdnetworks.com> In-Reply-To: <4E724BCD.4040607@rdtc.ru> References: <4E722B70.9010201@rdtc.ru> <201109151314.50549.jhb@freebsd.org> <4E7238C3.1060008@rdtc.ru> <20110915181524.GA6557@michelle.cdnetworks.com> <4E724BCD.4040607@rdtc.ru>
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On Fri, Sep 16, 2011 at 02:02:37AM +0700, Eugene Grosbein wrote: > 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? No, change BUS_DMA_ALLOCNOW used in re(4). > 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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