Date: Fri, 11 Feb 2005 17:57:27 +0800 From: Mars Trading <marstrade@gmail.com> 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: <71a906e0050211015750b8fb47@mail.gmail.com> In-Reply-To: <20050211031826.68199.qmail@web54007.mail.yahoo.com> References: <20050211031826.68199.qmail@web54007.mail.yahoo.com>
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Hey Rob, I'm on the same hardware - 82C596B (UDMA66) - but using a Seagate 20GB UDMA100 Drive. Relevant info from dmesg: atapci0: <VIA 82C596B UDMA66 controller> port 0xd000-0xd00f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 7.1 on pci0 ata0: channel #0 on atapci0 ad0: 19092MB <ST320014A/3.07> [38792/16/63] at ata0-master UDMA66 sysctl -a shows: hw.ata.ata_dma: 1 hw.ata.wc: 1 hw.ata.atapi_dma: 1 I'm using 5-stable now but didn't have problems when using 5.3-release. Flakey hardware? Dennis On Thu, 10 Feb 2005 19:18:26 -0800 (PST), Rob <spamrefuse@yahoo.com> 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" > -- Mars Trading 9620 Kamagong St., Makati, Manila, Philippines Phone: (632) 8952241 FAX: (632) 8996124 email: marstrade@gmail.com
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