Date: Thu, 19 Oct 2006 13:23:09 +0200 From: =?ISO-8859-1?Q?S=F8ren_Schmidt?= <sos@deepcore.dk> To: Ruslan Ermilov <ru@FreeBSD.ORG> Cc: freebsd-current@FreeBSD.ORG, Soren Schmidt <sos@FreeBSD.ORG> Subject: Re: support for marvell sata chips? Message-ID: <4537601D.3090107@deepcore.dk> In-Reply-To: <20061019104139.GA11216@rambler-co.ru> References: <E27072CC-3CC7-4C40-A139-8674D44FA140@maubi.net> <4535E88B.9070108@freebsd.org> <20061018134019.GB21654@rambler-co.ru> <45367E22.80207@deepcore.dk> <20061019104139.GA11216@rambler-co.ru>
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Ruslan Ermilov wrote: > On Wed, Oct 18, 2006 at 09:18:58PM +0200, S?ren Schmidt wrote: > >> Ruslan Ermilov wrote: >> >>> BTW, we're having data corruption issues when using Marvell 88SX6081: >>> >>> # dmesg |grep ^ad16 >>> ad16: 476940MB <HDS725050KLA360 K2AOAB0A> at ata8-master SATA150 >>> # dmesg | grep ^ata8 >>> ata8: <ATA channel 6> on atapci0 >>> # dmesg | grep ^atapci0 >>> atapci0: <Marvell 88SX6081 SATA300 controller> port 0x9800-0x98ff mem >>> 0xfc900000-0xfc9fffff irq 20 at device 1.0 on pci2 >>> # dd if=/dev/ad16 bs=128k count=1024 | md5 >>> 1024+0 records in >>> 1024+0 records out >>> 134217728 bytes transferred in 2.091913 secs (64160282 bytes/sec) >>> 669aa0b8c706f06d3d41aae95d4a3cf1 >>> # dd if=/dev/ad16 bs=128k count=1024 | md5 >>> 1024+0 records in >>> 1024+0 records out >>> 134217728 bytes transferred in 2.092598 secs (64139273 bytes/sec) >>> 5b92918e4beaadf5a7ff74829b9ab9ce >>> # dd if=/dev/ad16 bs=128k count=1024 | md5 >>> 1024+0 records in >>> 1024+0 records out >>> 134217728 bytes transferred in 2.096472 secs (64020758 bytes/sec) >>> d56fbdee36d70c8d6fcae6ea7b7550a7 >>> # >>> >>> I'm currently looking into adding errata quirks found in the Linux >>> driver to see if that helps. JFYI. >>> >>> >> Right, there are a few mentioned in the docs, however I've not been able >> to reproduce any of them, but please let me know what you find out!! >> >> > By removing the riser card I can no longer easily reproduce > the corruption but colleagues said it's still reproduceable > even without the riser card. I'm doing more testing now, > but so far I couldn't reproduce it. I tried several riser > cards, two different models, the issue is still the same; > reading 10 sectors gives one bit error (MSB bit) at one > byte. Do you have experience why using riser cards may be > a bad idea? > Hmm, I've seen bad behavior with PCI-X riser cards, I guess its because of poor design and the high speeds that the problems occur. Not much to do about it other than finding one that works or lowering the PCI-X bus speed. -Søren
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