Date: Wed, 18 Mar 1998 07:52:30 -0300 (EST) From: Joao Carlos Mendes Luis <jonny@coppe.ufrj.br> To: scsi@FreeBSD.ORG Subject: Internal SCSI ZIP locking bus Message-ID: <199803181052.HAA05104@gaia.coppe.ufrj.br>
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Hi, I've been running -stable with a SCSI cdrom and a External ZIP SCSI, both attached to a 1542CF, without problems. Today I exchanged by external drive for an internal one, enabled termination on Adaptec Card, disabled termination in the Internal ZIP, which is in the middle of SCSI chain, and booted. Both devices are recognized during boot: aha0 at 0x334-0x337 irq 11 drq 6 on isa (aha0:3:0): "TEAC CD-ROM CD-56S 1.0B" type 5 removable SCSI 2 cd0(aha0:3:0): CD-ROM cd present [400000 x 2048 byte records] (aha0:5:0): "IOMEGA ZIP 100 E.08" type 0 removable SCSI 2 od0(aha0:5:0): Optical od not present od0(aha0:5:0): with approximate 0 cyls, 0 heads, and 0 sectors/track (Oh yes, I'm using the "ZIP as od patches", and love them ! :) ) Acessing any of those SCSI devices generates messages like these after some time: ... Mar 18 06:06:53 dogbert /kernel: aha0: Invalid bus phase/sequence Mar 18 06:06:55 dogbert /kernel: cd0(aha0:3:0): UNIT ATTENTION asc:29,0 Mar 18 06:06:55 dogbert /kernel: cd0(aha0:3:0): Power on, reset, or bus device reset occurred ... Mar 18 07:40:47 dogbert /kernel: od0(aha0:5:0): UNIT ATTENTION asc:29,0 Mar 18 07:40:47 dogbert /kernel: od0(aha0:5:0): Power on, reset, or bus device reset occurred Mar 18 07:40:47 dogbert /kernel: , retries:2 ... DOS/Windows also locks (without FreeBSD's messages, and REAL multitasking it's a real mess :) ), so it must be a hardware problem. AHA1542 DMA Speed setting is at 5MB/s, the DMA tests works between 3.3 and 6.7, but the error occurs in all of them. Using any drive isolated works without problems. I've been thinking about cable (I'll try to find a new one today), but I've used the middle conector before to connect an old SCSI HD, without problems. Does anybody have an idea of what could be happening ? Jonny -- Joao Carlos Mendes Luis jonny@gta.ufrj.br +55 21 290-4698 jonny@coppe.ufrj.br Universidade Federal do Rio de Janeiro UFRJ/COPPE/CISI PGP fingerprint: 29 C0 50 B9 B6 3E 58 F2 83 5F E3 26 BF 0F EA 67 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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