Date: Wed, 23 Apr 1997 12:01:33 +0200 From: Andreas Klemm <andreas@klemm.gtn.com> To: Tom Samplonius <tom@uniserve.com>, Brian Tao <taob@nbc.netcom.ca>, freebsd-current@FreeBSD.ORG Subject: Re: "Data overrun" with 3.0-SNAP, 2940UW controllers Message-ID: <19970423120133.44163@klemm.gtn.com> In-Reply-To: <199704202022.OAA27273@pluto.plutotech.com>; from Justin T. Gibbs on Sun, Apr 20, 1997 at 02:21:03PM -0600 References: <Pine.NEB.3.95.970420114115.11865B-100000@haven.uniserve.com> <199704202022.OAA27273@pluto.plutotech.com>
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On Sun, Apr 20, 1997 at 02:21:03PM -0600, Justin T. Gibbs wrote: > > Also, make sure you are using tagged commands, but no scb paging. scb > >pagin support isn't complete yet, and the non tagged command code is > >poorly tested. > > I actually think that scb paging works just fine now. I've also been > testing without tagged queueing lately and as soon as we get our news > feed up here at work, it will get even more testing. > > If SCB paging doesn't work for you, I certainly want to hear about it. SCB_PAGING && friends run really fine here on a FreeBSD 2.2-STABLE machine. Weeks ago I also had the reported timeouts and such. And additionally problems with the firmware of my scsi disks, that got a QUEUE_FULL condition when activating tagged command queuing and having to deal with more than 3 tags. I'd also recommend you to get the latest SCSI fixes by upgrading to FreeBSD-2.2-STABLE (the RELENG_2_2 tree) or to use -current if you like. Here my configuration for reference, which runs really fine now. Many thanks to Justin ! # SCSI Devices controller scbus0 device sd0 # Harddisk 0 - DOS/FreeBSD SMP device sd1 # Harddisk 1 - FreeBSD Boot device sd2 # Harddisk 2 - FreeBSD local device st0 # TDC 4222 device cd0 # TOSHIBA XM-5701TA 3136 options AHC_TAGENABLE options AHC_ALLOW_MEMIO options AHC_SCBPAGING_ENABLE options SCSI_REPORT_GEOMETRY ahc0 <Adaptec 2940 SCSI host adapter> rev 3 int a irq 11 on pci0:13 ahc0: aic7870 Single Channel, SCSI Id=7, 16/255 SCBs ahc0: target 0 Tagged Queuing Device (ahc0:0:0): "IBM DORS-32160 WA6A" type 0 fixed SCSI 2 sd0(ahc0:0:0): Direct-Access 2063MB (4226725 512 byte sectors) sd0(ahc0:0:0): with 6703 cyls, 5 heads, and an average 126 sectors/track ahc0: target 1 Tagged Queuing Device (ahc0:1:0): "IBM DORS-32160 WA6A" type 0 fixed SCSI 2 sd1(ahc0:1:0): Direct-Access 2063MB (4226725 512 byte sectors) sd1(ahc0:1:0): with 6703 cyls, 5 heads, and an average 126 sectors/track ahc0: target 2 Tagged Queuing Device (ahc0:2:0): "IBM DORS-32160 WA6A" type 0 fixed SCSI 2 sd2(ahc0:2:0): Direct-Access 2063MB (4226725 512 byte sectors) sd2(ahc0:2:0): with 6703 cyls, 5 heads, and an average 126 sectors/track ahc1 <Adaptec 2940 SCSI host adapter> rev 3 int a irq 15 on pci0:14 ahc1: aic7870 Single Channel, SCSI Id=7, 16/255 SCBs (ahc1:4:0): "TANDBERG TDC 4222 =07:" type 1 removable SCSI 2 st0(ahc1:4:0): Sequential-Access density code 0x0, drive empty (ahc1:6:0): "TOSHIBA CD-ROM XM-5701TA 3136" type 5 removable SCSI 2 cd0(ahc1:6:0): CD-ROM cd present [325252 x 2048 byte records] -- andreas@klemm.gtn.com /\/\___ Wiechers & Partner Datentechnik GmbH Andreas Klemm ___/\/\/ Support Unix -- andreas.klemm@wup.de pgp p-key http://www-swiss.ai.mit.edu/~bal/pks-toplev.html >>> powered by <<< ftp://sunsite.unc.edu/pub/Linux/system/Printing/aps-491.tgz >>> FreeBSD <<<
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