Date: Wed, 8 Dec 1999 15:41:09 +0100 (CET) From: saper@system.pl To: FreeBSD-gnats-submit@freebsd.org Cc: saper@system.pl Subject: kern/15356: ahc driver (Adaptec 7896) cannot see 4x18GB drives (but 3 are ok) Message-ID: <199912081441.PAA00376@barbera.system.pl>
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>Number: 15356 >Category: kern >Synopsis: ahc driver (Adaptec 7896) cannot see 4x18GB drives (but 3 are ok) >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Dec 8 07:50:01 PST 1999 >Closed-Date: >Last-Modified: >Originator: Marcin Cieslak >Release: FreeBSD 4.0-CURRENT i386 >Organization: SYSTEM Internet Provider >Environment: FreeBSD barbera.system.pl 4.0-CURRENT FreeBSD 4.0-CURRENT #1: Mon Dec 6 16:18:04 CET 1999 toor@barbera.system.pl:/usr/src/sys/compile/Barbera.debug i386 cvsuped as above. ahc0: <Adaptec aic7896/97 Ultra2 SCSI adapter> irq 11 at device 12.0 on pci0 ahc1: <Adaptec aic7896/97 Ultra2 SCSI adapter> irq 11 at device 12.1 on pci0 Mounting root from ufs:/dev/da0s1a da2 at ahc0 bus 0 target 2 lun 0 da2: <IBM DNES-318350Y SA30> Fixed Direct Access SCSI-3 device da2: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing Enabled da2: 17501MB (35843670 512 byte sectors: 64H 32S/T 17501C) da0 at ahc0 bus 0 target 0 lun 0 da0: <IBM DNES-318350Y SA30> Fixed Direct Access SCSI-3 device da0: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing Enabled da0: 17501MB (35843670 512 byte sectors: 64H 32S/T 17501C) da1 at ahc0 bus 0 target 1 lun 0 da1: <IBM DNES-318350Y SA30> Fixed Direct Access SCSI-3 device da1: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing Enabled da1: 17501MB (35843670 512 byte sectors: 64H 32S/T 17501C) da3: currently unplugged - same as da0..da2 All on a single channel. Properly terminated. Problem is the same whether drives are hardwired in the kernel or not. I have increased SCSI_DELAY to 30 seconds. Linux RedHat 6.0 and Solaris 7 can see all the drives. The server is Intel 2U Rack Server with L440GX+ board and a single Pentium III. Full description of hardware at http://www.intel.com/isp/ -> Products -> Servers -> 2U >Description: When all 4 drives are plugged-in, the boot process goes fine, BIOS reports all of them (C..F). After SCSI bus reset system aborts with no rootdev message. It's enough to unplug _any_ disk (despite da0 which contains the system) and the system works fine. Sometimes with full CAM debug enabled (all buses and targets) it works, it happend to me that all disks showed up when booted with 3.2-Release install floppy. >How-To-Repeat: Plug all 4 IBM 18GB drives onto one channel. >Fix: None :( >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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