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Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: 2.0.5R: SCSI hang and panic... HELP
Message-ID: <1995Dec14.064911.7312@vmsmail.gov.bc.ca>
From: cschuber@passer.osg.gov.bc.ca (Cy Schubert - BCSC Open Systems Group)
Date: 14 Dec 95 06:49:11 PST
Reply-To: cschuber@uumail.gov.bc.ca
References: <48uc8f$68h@Mars.mcs.com>
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Michael Borowiec (mikebo@MCS.COM) wrote:
> Oh noooooo....
> 2.1.0R is out, so I'm trying to back up my 2.0.5R machine to 8mm Exabyte,
> but every time I get close to finishing my tar backup, this happens:
> ahc0: target 0, lun 0 (sd0) timed out
> ahc0: target 0, lun 0 (sd0) timed out
I too am having this problem. It happens when the CDROM drive is being
accessed. The CDROM drive is a Plextor 4PLEX. My configuration includes
an ARCHIVE Python SCSI 4mm tape drive (not in use when the problem occurs),
and a QUANTUM LIGHTNING 730S (with and without a swap slice).
I am a recent convert from Linux... and yes Linux did not have the problem.
> Most times, this message keeps scrolling across the console, the SCSI
> bus activity light is on solid, and the machine is completely locked up.
> Once in a great while, I'll see a few of the above messages followed by:
> ahc_scsi_cmd0: more than 256 DMA segs
> sd0: oops not queued
> biodone: buffer already done
> And once it seems this caused:
> /: bad dir ino 2 at offset 0: mangled entry
> panic: bad dir
> dumping to dev 40, offset 32768
> ahc0: not responding
> The machine is a 486DX50 EISA/VESA w/16MB, with an Adaptec 2742AT EISA
> SCSI card. Please find dmesg output below... The system kernel is all
> generic 2.0.5R EXCEPT it has an updated st.c:
> ($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 strin
> gs...
> Free to flutter, in memory of
> their wasted wings... P.Gabriel
Regards, Phone: (604)389-3827
Cy Schubert OV/VM: BCSC02(CSCHUBER)
Open Systems Support BITNET: CSCHUBER@BCSC02.BITNET
BC Systems Corp. Internet: cschuber@uumail.gov.bc.ca
cschuber@bcsc02.gov.bc.ca
"Quit spooling around, JES do it."