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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!yarrina.connect.com.au!munnari.OZ.AU!spool.mu.edu!howland.reston.ans.net!newsfeed.internetmci.com!news.kei.com!ddsw1!news.mcs.net!not-for-mail From: mikebo@MCS.COM (Michael Borowiec) Newsgroups: comp.unix.bsd.freebsd.misc Subject: 2.0.5R: SCSI hang and panic... HELP Date: 21 Nov 1995 23:25:35 -0600 Organization: MCSnet, Chicago Area Public Internet Access Lines: 95 Message-ID: <48uc8f$68h@Mars.mcs.com> NNTP-Posting-Host: mars.mcs.com Oh noooooo.... 2.1.0R is out, so I'm trying to back up my 2.0.5R machine to 8mm Exabyte, but every time I get close to finishing my tar backup, this happens: ahc0: target 0, lun 0 (sd0) timed out ahc0: target 0, lun 0 (sd0) timed out Most times, this message keeps scrolling across the console, the SCSI bus activity light is on solid, and the machine is completely locked up. Once in a great while, I'll see a few of the above messages followed by: ahc_scsi_cmd0: more than 256 DMA segs sd0: oops not queued biodone: buffer already done And once it seems this caused: /: bad dir ino 2 at offset 0: mangled entry panic: bad dir dumping to dev 40, offset 32768 ahc0: not responding The machine is a 486DX50 EISA/VESA w/16MB, with an Adaptec 2742AT EISA SCSI card. Please find dmesg output below... The system kernel is all generic 2.0.5R EXCEPT it has an updated st.c: ($Id: st.c,v 1.38 1995/07/16 09:13:14 gibbs Exp $). Anyone see this before or 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: <SoundBlaster Pro 3.2> opl0 at 0x388 on isa opl0: <Yamaha OPL-3 FM> bpf: lo0 attached bpf: ppp0 attached bpf: sl0 attached -- -------------------------------------------------------------------------- Michael Borowiec All tied to their things, mikebo@MCS.COM they are netted by the strings... Free to flutter, in memory of their wasted wings... P.Gabriel