From owner-freebsd-bugs Mon Nov 27 11:58:27 1995 Return-Path: owner-bugs Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id LAA23618 for bugs-outgoing; Mon, 27 Nov 1995 11:58:27 -0800 Received: from tellab5.lisle.tellabs.com (tellab5.lisle.tellabs.com [138.111.243.28]) by freefall.freebsd.org (8.6.12/8.6.6) with SMTP id LAA23578 ; Mon, 27 Nov 1995 11:58:13 -0800 From: mikebo@tellabs.com Received: from sunc210.hq.tellabs.com by tellab5.lisle.tellabs.com with smtp (Smail3.1.29.1 #4) id m0tK9Gx-000jDsC; Mon, 27 Nov 95 13:31 CST Received: by sunc210.hq.tellabs.com (SMI-8.6/1.9) id NAA03249; Mon, 27 Nov 1995 13:31:16 -0600 Message-Id: <199511271931.NAA03249@sunc210.hq.tellabs.com> Subject: 2.0.5R: SCSI hang and panic... HELP To: bugs@freebsd.org Date: Mon, 27 Nov 1995 13:31:15 -0600 (CST) Cc: mikebo (Mike Borowiec), hackers@freebsd.org, questions@freebsd.org X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-bugs@freebsd.org Precedence: bulk I'm having tape drive problems... I'm trying to back-up my 2.0.5R machine to 8mm Exabyte, but every time I get close to finishing my tar backup, this happens: ahc0: target 0, lun 0 (sd0) timed out ahc0: target 0, lun 0 (sd0) timed out ...[repeats]... SCSI bus hangs, and I'm forced to reboot system... Rarely, the above messages are followed by: ahc_scsi_cmd0: more than 256 DMA segs sd0: oops not queued biodone: buffer already done Once, this even happened: /: bad dir ino 2 at offset 0: mangled entry panic: bad dir dumping to dev 40, offset 32768 ahc0: not responding The machine is a 486DX50 EISA/VESA w/16MB, with an Adaptec 2742AT EISA SCSI card. Please find dmesg output below... The system kernel is all generic 2.0.5R EXCEPT it has an updated st.c: ($Id: st.c,v 1.38 1995/07/16 09:13:14 gibbs Exp $). Anyone see this before... know of a solution? Any suggestions would be most appreciated... Thanks! - Mike -------------------------------------------------------------------------- Included dmesg output: FreeBSD 2.0.5-RELEASE #0: Fri Sep 1 00:16:43 CDT 1995 kroot@timesink:/usr/src/sys/compile/TIMESINK CPU: i486DX (486-class CPU) real memory = 16384000 (4000 pages) avail memory = 14749696 (3601 pages) Probing for devices on the ISA bus: sc0 at 0x60-0x6f irq 1 on motherboard sc0: VGA color <16 virtual consoles, flags=0x0> ed0 at 0x280-0x29f irq 9 maddr 0xd4000 msize 16384 on isa ed0: address 00:00:c0:d1:09:2d, type WD8013EP (16 bit) bpf: ed0 attached sio0 at 0x3f8-0x3ff irq 4 on isa sio0: type 16550A lpt0 at 0x378-0x37f irq 7 on isa lpt0: Interrupt-driven port lp0: TCP/IP capable interface mse0 at 0x23c irq 3 on isa pca0 on motherboard pca0: PC speaker audio driver fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa fdc0: NEC 72065B fd0: 1.44MB 3.5in fd1: 1.2MB 5.25in ahc0: reading board settings ahc0: 274x Twin Channel, A SCSI Id=7, B SCSI Id=7, aic7770 >= Rev E, 4 SCBs ahc0: Using Level Sensitive Interrupts ahc0: Downloading Sequencer Program...Done ahc0 at 0x5000-0x50ff irq 11 on eisa slot 5 ahc0: Probing channel A ahc0 waiting for scsi devices to settle ahc0: target 0 synchronous at 4.4MB/s, offset = 0xf (ahc0:0:0): "IMPRIMIS 94601-15 1250" type 0 fixed SCSI 1 sd0(ahc0:0:0): Direct-Access 989MB (2026965 512 byte sectors) ahc0: target 1 synchronous at 10.0MB/s, offset = 0xf (ahc0:1:0): "MAXTOR XT-4380S B5A" type 0 fixed SCSI 1 sd1(ahc0:1:0): Direct-Access 318MB (651630 512 byte sectors) (ahc0:2:0): "ARCHIVE VIPER 150 20000 -000" type 1 removable SCSI 1 st0(ahc0:2:0): Sequential-Access st0: Archive Viper 150 is a known rogue density code 0x0, drive empty (ahc0:5:0): "EXABYTE EXB-8200 4.25" type 1 removable SCSI 1 st1(ahc0:5:0): Sequential-Access density code 0x0, drive empty (ahc0:6:0): "NEC CD-ROM DRIVE:501 2.2" type 5 removable SCSI 2 cd0(ahc0:6:0): CD-ROM cd present.[313218 x 2048 byte records] ahc0: Probing Channel B ahc0 waiting for scsi devices to settle ahb0 not found aha0 not found at 0x330 npx0 on motherboard npx0: INT 16 interface sb0 at 0x220 irq 5 drq 1 on isa sb0: opl0 at 0x388 on isa opl0: bpf: lo0 attached bpf: ppp0 attached bpf: sl0 attached -- -------------------------------------------------------------------------- Michael Borowiec - mikebo@tellabs.com - Tellabs Operations Inc. Senior Member of Technical Staff 4951 Indiana Avenue, MS 63 708-512-8211 FAX: 708-512-7099 Lisle, IL 60532 USA --------------------------------------------------------------------------