Date: 12 Mar 2004 08:51:27 -0500 From: Lowell Gilbert <lgusenet@be-well.ilk.org> To: lukas@razik.de Cc: freebsd-hardware@freebsd.org Subject: Re: 5.2.1-RELEASE hangs after 'agp0: <Intel 82865 host to AGP bridge> mem 0-0x7ffffff at device 0.0 on pci0' Message-ID: <44ad2mnpgg.fsf@be-well.ilk.org> In-Reply-To: <4050B593.3628.237BFC@localhost> References: <4050B593.3628.237BFC@localhost>
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lukas@razik.de writes: > My system (laptop): > CPU: P4 3.06GHz (HT enabled) > Chipset: Intel 82865G/PE/P, 828485P DRAM Controller > Graphic adapter: GF FX Go5350 > > > Hi!!! > > If I try to boot from the '5.2.1-RELEASE-i386-miniinst.iso' the kernel hangs after outputting this message (with > verbose logging): > agp0: <Intel 82865 host to AGP bridge> mem 0-0x7ffffff at device 0.0 on pci0 > agp0: allocating GATT for aperture of size 128M > > Is there a way to start the kernel without AGP support? No. This is something of a problem, because some AGP implementations (including the one on my laptop) will lock up or crash during the AGP probe. In my case, I confirmed that the AGP device was definitely flaky, because the CPU locked up on a simple register read. I corresponded a bit with FreeBSD's main AGP developer, but we didn't get much of anywhere. I documented the problems in my system at http://be-well.ilk.org:8088/systuff/laptop-problems.html One thing you can do is start the install from floppies, which have a more minimal kernel, without AGP. If that ever changes, some of us will have a real problem. I don't really understand why AGP should be in the GENERIC kernel, anyway, since it loads fine as a module, but I don't want to make too much of a fuss. After all, I *did* get my system going, albeit through a procedure that's clearly too much to expect of a first-time user. > I had the same problem with NetBSD 1.6.2 but after disabling APM and AGP all works fine... Try disabling ACPI on FreeBSD 5.2.1. That may leave your AGP chip a little less confused...
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