Date: Fri, 14 Apr 2000 23:03:39 -0700 From: Kent Stewart <kstewart@3-cities.com> To: Troy <troyml@prodigy.net> Cc: stable@freebsd.org Subject: Re: ad0: WRITE command timeout Message-ID: <38F8063B.D0035F81@3-cities.com> References: <38F7F6F9.AC29F4AA@prodigy.net>
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Troy wrote: > > The subject line shows the error message that I have been having. From > searching the newsgroups, archives, and the web I have discovered what > in my mind is a temporary fix, ie... sysctl -w hw.atamodes=pio,etc..... > The drive I have in my system is a Samsung SV0844D, which is an UDMA66 > drive, the controller is a PIIX4 which only supports UDMA33 and > supposedly is supported properly under FBSD. I began receiving this > error after upgrading to 4-stable using cvs from the 3-stable line I was > using. Unfortunately it has caused some data corruption, but I think > I've caught most of that. My question is, is there a way to fix it > without having to use pio modes and suffer that performance hit, or need > I just wait until the driver is fixed and when will that happen? > On a seperate note, since my switch to 4-stable some of my system > monitoring tools, ie.. top, vmstat, wmmon, etc have stopped functioning > properly, the output of top and vmstat are below, wiser individuals then > me hopefully will know where I went wrong. <snip> > ad0: 8063MB <SAMSUNG SV0844D> [16383/16/63] at ata0-master using UDMA33 > acd0: DVD-ROM <DVS DVD-ROM DSR-600H 990909B0> at ata1-master using WDMA2 > Mounting root from ufs:wd0s1a It looks like you used an old kernel config. My dmesg shows ad0: 12427MB <Maxtor 91303D6> [25249/16/63] at ata0-master using UDMA33 ad1: 3020MB <WDC AC33100H> [6136/16/63] at ata0-slave using WDMA2 ad3: 13029MB <Maxtor 91366U4> [26473/16/63] at ata1-slave using UDMA33 acd0: CDROM <CD-532E-B> at ata1-master using PIO4 Waiting 5 seconds for SCSI devices to settle sa0 at ahc0 bus 0 target 6 lun 0 sa0: <ARCHIVE Python 28849-XXX 4.CK> Removable Sequential Access SCSI-2 device sa0: 5.000MB/s transfers (5.000MHz, offset 15) pass2 at ahc0 bus 0 target 6 lun 1 pass2: <ARCHIVE Python 28849-XXX 4.CK> Removable Changer SCSI-2 device pass2: 5.000MB/s transfers (5.000MHz, offset 15) Mounting root from ufs:/dev/ad0s1a da0 at ahc0 bus 0 target 4 lun 0 da0: <IBM DCAS-34330W S65A> Fixed Direct Access SCSI-2 device da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit) da0: 4134MB (8467200 512 byte sectors: 255H 63S/T 527C) The mounting root is from ufs:/dev/ad0s1a where yours is still from wd0s1a, which is the old way. Kent > ad0: WRITE command timeout - resetting > ata0: resetting devices .. done > ad0: WRITE command timeout - resetting > ata0: resetting devices .. done > </dmesg> > > <top> > top: nlist failed > </top> > > <vmstat> > vmstat: undefined symbols: > _cp_time _kmemstatistics _bucket _zlist > </vmstat> > > Thanks for any and all assistance you can be with these issues. > > Troy Lubbers > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message -- Kent Stewart Richland, WA mailto:kstewart@3-cities.com http://www.3-cities.com/~kstewart/index.html FreeBSD News http://daily.daemonnews.org/ SETI(Search for Extraterrestrial Intelligence) @ HOME http://setiathome.ssl.berkeley.edu/ Hunting Archibald Stewart, b 1802 in Ballymena, Antrim Co., NIR http://www.3-cities.com/~kstewart/genealogy/archibald_stewart.html To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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