Date: Sun, 29 Sep 1996 10:53:10 +0300 (MSK) From: =?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= (Andrey A. Chernov) <ache@nagual.ru> To: current@freebsd.org (FreeBSD-current), scsi@freebsd.org Subject: Warning: dangerous SCSI option: AHC_SCBPAGING_ENABLE Message-ID: <199609290753.KAA00496@nagual.ru>
next in thread | raw e-mail | index | archive | help
Recently I got bad experience, the story is: I have AHC_SCBPAGING_ENABLE and one SCSI-2 disk, it works right for a long time. When I add second SCSI-2 disk, this option almost immediately seriously damage my root filesystem on _first_ disk with diagnostic: data overrun of <some big number> bytes detected. Forcing a retry. When I resurrect my root filesystem and remove this option, all works right with two disks. BTW, AHC_TAGENABLE option works right in both cases. Details: ahc0: <Adaptec 284X SCSI host adapter> at 0x1c00-0x1cff irq 11 on eisa0 slot 1 ahc0: aic7770 >= Rev E, Single Channel, SCSI Id=7, 4 SCBs ahc0: target 0 Tagged Queuing Device (ahc0:0:0): "CONNER CFP1060S 1.05GB 2135" type 0 fixed SCSI 2 sd0(ahc0:0:0): Direct-Access 1013MB (2074880 512 byte sectors) ^^^^^^^^^^^^^^^^ first disk ahc0: target 1 Tagged Queuing Device (ahc0:1:0): "IBM DORS-32160 S84A" type 0 fixed SCSI 2 sd1(ahc0:1:0): Direct-Access 2063MB (4226725 512 byte sectors) ^^^^^^^^^^^^^^^^ second disk -- Andrey A. Chernov <ache@nagual.ru> http://www.nagual.ru/~ache/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199609290753.KAA00496>