Date: Sun, 10 Oct 2004 10:59:19 +0200 From: =?ISO-8859-1?Q?S=F8ren_Schmidt?= <sos@DeepCore.dk> To: miha@ghuug.org Cc: freebsd-hackers@freebsd.org Subject: Re: ad0: FAILURE - WRITE_DMA Message-ID: <4168F9E7.9040408@DeepCore.dk> In-Reply-To: <200410091843.06854.miha@ghuug.org> References: <200410081937.15068.miha@ghuug.org> <41682D3F.4060902@DeepCore.dk> <200410091843.06854.miha@ghuug.org>
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Mikhail P. wrote: > On Saturday 09 October 2004 18:26, S=F8ren Schmidt wrote: >=20 >>Hmm, that means that the drive couldn't find the sector you asked for. >>Now, what has me wondering is that it is the exact sector where we >>switch to 48bit adressing mode. Anyhow, I've just checked on the old >>Maxtor preproduktion 48bit reference drive I have here and it crosses >>the limit with no problems. >>What controller are you using ? not all supports 48bit mode correctly..= >=20 >=20 > There's VIA's motherboard (not sure about the model name). >=20 > Here's info regarding ata controller from dmesg: > atapci0: <VIA 8235 UDMA133 controller> port 0xac00-0xac0f at device 17.= 1 on=20 > pci0 >=20 > I will be able to test the drives (the ones which I thought of as "fail= ed") on=20 > another board within 10 days or so. There is definitly something fishy here, since I dont have either the=20 disks nor any VIA chips here in the lab I cannot do any testing here. However I dont know of any problems with the VIA chips in this regard,=20 so that leaves the disks for scrutiny. One thing to try is change the=20 tripping point where we switch from 28bit mode to 48 bit mode, could be=20 a 1 off error in the firmware... -S=F8ren
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