Date: Fri, 11 Feb 2005 18:56:22 +1300 From: Mark Kirkwood <markir@paradise.net.nz> To: Rob <spamrefuse@yahoo.com> Cc: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: atapci VIA 82C596B UDMA66 controller: problem for 5.X ? Message-ID: <420C4906.6030507@paradise.net.nz> In-Reply-To: <20050211031826.68199.qmail@web54007.mail.yahoo.com> References: <20050211031826.68199.qmail@web54007.mail.yahoo.com>
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Rob, I am currently running 5.3 Release on a Tyan Trinity 400 (VIA 82C596B UDMA66) with 2 x Seagate Barracude IV (UDMA100) and have no stability issues. e.g from dmesg: atapci0: <VIA 82C596B UDMA66 controller> port 0xe000-0xe00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 7.1 on pci0 ata0: channel #0 on atapci0 ata1: channel #1 on atapci0 ad0: 19092MB <ST320011A/3.10> [38792/16/63] at ata0-master UDMA66 ad1: 19092MB <ST320011A/3.10> [38792/16/63] at ata0-slave UDMA66 acd0: CDRW <CREATIVE CD-RW RW8439E/1R09> at ata1-master PIO4 What does your dmesg show if you dont force ata_dma=0? Hmmmm - you have an IBM disk in one pc and WDs in the other, hard to believe that the disks are the issue. Do both pcs have the same mobo? (if so what is it). Something else - did you upgrade from 4.x or fresh install? With respect to attempting a fix, you could try $ atacontrol mode 0 UDMA66 UDMA66 immediately after boot, to see if you can force a sensible transfer mode setting. regards Mark Rob wrote: > Hi, > > I have two PCs, with apparently a somewhat old > motherboard, since there's a maximum support for > UDMA66 by the harddisk controller. > The attached harddisks are newer and allow a > higher speed of UDMA100. > > This combination of older motherboard and newer > harddisk causes great problems with 5.X (it never > did with 4.X). I have irregular crashes of X and > even crashes at initial bootup. All this is solved > by using hw.ata.ata_dma="0", which forces the > harddisk to use the very low speed of PIO4 :(. > > Both PCs have a VIA 82C596B UDMA66 controller. > I wonder if that is the problem for 5.X ? > > On these two PCs, the output is of > grep -i ata /var/run/dmesg.boot > is: > > -- PC1 ------------------- > atapci0: <VIA 82C596B UDMA66 controller> port > 0xe000-0xe00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 > at device 7.1 on pci0 > ata0: channel #0 on atapci0 > ata1: channel #1 on atapci0 > ad0: 43979MB <IBM-DTLA-307045/TX6OA50C> [89355/16/63] > at ata0-master PIO4 > acd0: CDROM <CRD-8520B/1.00> at ata1-master PIO4 > > > -- PC2 ------------------- > atapci0: <VIA 82C596B UDMA66 controller> port > 0xc000-0xc00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 > at device 7.1 on pci0 > ata0: channel #0 on atapci0 > ata1: channel #1 on atapci0 > ad0: 76319MB <WDC WD800JB-00CRA1/17.07W17> > [155061/16/63] at ata0-master PIO4 > ad1: 16448MB <WDC WD172AA/05.05B05> [33420/16/63] at > ata0-slave PIO4 > acd0: CDRW <HL-DT-ST RW/DVD GCC-4320B/1.00> at > ata1-master UDMA33 > > ------------------------------------------------- > > I consider this a serious drawback of 5.3. > > Any idea how this can be resolved? > > Best regards, > Rob. > > > > __________________________________ > Do you Yahoo!? > Yahoo! Mail - Helps protect you from nasty viruses. > http://promotions.yahoo.com/new_mail > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > >
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