Date: Mon, 13 Oct 2008 10:18:49 -0200 From: JoaoBR <joao@matik.com.br> To: freebsd-stable@freebsd.org, gary.jennejohn@freenet.de Cc: Jeremy Chadwick <koitsu@freebsd.org>, freebsd-amd64@freebsd.org Subject: Re: am2 MBs - 4g + SCSI wipes out root partition Message-ID: <200810131018.49543.joao@matik.com.br> In-Reply-To: <20081013145054.3b458aea@ernst.jennejohn.org> References: <200810101429.37244.joao@matik.com.br> <200810130935.10570.joao@matik.com.br> <20081013145054.3b458aea@ernst.jennejohn.org>
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On Monday 13 October 2008 10:50:54 Gary Jennejohn wrote: > On Mon, 13 Oct 2008 09:35:10 -0200 > > JoaoBR <joao@matik.com.br> wrote: > > On Saturday 11 October 2008 07:13:16 Jeremy Chadwick wrote: > > > It's a driver problem. If you want to use SCSI then you'll have to > > > limit memory to 3.5 GB. > > I probably should have written - it seems to be a problem with ahc. In > general SCSI seems to work, as Scott has recently documented. But see > below. > > > well indeed with less then 4G installed it works flawless, so the > > difference I see is that former athln64 MBs had memory hole remap optio= ns > > or when 4Gig installed they only gave 3.something to the OS even under > > amd64 - this is NOT the case with the AM2 MBs which should support up to > > 8/16Mb onboard but wth this amount freebsd amd64 does not even boot when > > a scsi adaptor is installed > > I'm beginning to believe that it's motherboard/BIOS related and not a > general problem with ahc or any other SCSI driver. I can say that > at least with my Gigabyte GA-M61P-S3 I observed data corruption with > 4GB of memory installed and with the BIOS mapping a part of memory > above 4GB. > > Forcing the kernel to use only 3.5GB solved the problem. > exactly, I have the same MB and Gigabytes support changed Ideas with me, ev= en=20 released a newer bios version but at the end they insisted that it is an OS= =20 issue since this problem does not appear with windows and fedora =2D-=20 Jo=E3o A mensagem foi scaneada pelo sistema de e-mail e pode ser considerada segura. Service fornecido pelo Datacenter Matik https://datacenter.matik.com.br
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