Date: Thu, 11 Sep 2008 11:03:54 -0500 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: grehan@freebsd.org Cc: powerpc@freebsd.org Subject: Re: Call for testers: Apple ATA DMA Message-ID: <48C9416A.8030608@freebsd.org> In-Reply-To: <48C8C82D.90207@freebsd.org> References: <48C69864.3010208@freebsd.org> <b9c23c9f0809100322n1659cb36oa05acf2f13f3c7e1@mail.gmail.com> <48C7F336.6060003@freebsd.org> <1C883A32-8D01-4775-B027-20DB1DF4B4D3@mac.com> <48C8B400.7060604@freebsd.org> <48C8C82D.90207@freebsd.org>
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Peter Grehan wrote: > On an old iMac (macio 0x0025106b), I get a panic if ATA DMA isn't disabled: > > Memory modified after free 0xda6c00(508) val=0 @ 0xda6c00 > panic: Most recently used by GEOM > > This is after the ad0/acd0 disk messages are displayed. This is with one of the ATA - macio parts, I assume? Could you tell me whether (a) the two are on the same ATA bus, (b) the name of the ATA controller in OF (i.e. ata-3 or ata-4), and (c) which modes the driver wants to configure for both devices? I wish I had more hardware to test this on... -Nathan
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