Date: Mon, 21 Jul 1997 10:55:12 -0700 (PDT) From: nsayer@quack.kfu.com To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/4136: worm fails with 'write append error' Message-ID: <199707211755.KAA00362@zephyr.specialix.com> Resent-Message-ID: <199707211800.LAA29354@hub.freebsd.org>
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>Number: 4136
>Category: kern
>Synopsis: worm fails with 'write append error'
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Jul 21 11:00:06 PDT 1997
>Last-Modified:
>Originator: Nick Sayer
>Organization:
Just me
>Release: FreeBSD 2.2.2-RELEASE i386
>Environment:
Copyright (c) 1992-1997 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 2.2.2-RELEASE #4: Tue Jul 8 11:30:17 PDT 1997
nick@zephyr.specialix.com:/usr/src/sys/compile/ZEPHYR
CPU: i486 DX2 (486-class CPU)
Origin = "GenuineIntel" Id = 0x435 Stepping=5
Features=0x3<FPU,VME>
real memory = 16777216 (16384K bytes)
avail memory = 14721024 (14376K bytes)
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 0x300-0x31f irq 10 maddr 0xcc000 msize 16384 on isa
ed0: address 00:00:c0:e1:4e:57, type WD8013WC (16 bit)
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
psm0 at 0x60-0x64 irq 12 on motherboard
psm0: device ID 0
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.44MB 3.5in
wdc0 not found at 0x1f0
aha0 at 0x330-0x333 irq 11 drq 5 on isa
(aha0:0:0): "QUANTUM FIREBALL1080S 630C" type 0 fixed SCSI 2
sd0(aha0:0:0): Direct-Access 1042MB (2134305 512 byte sectors)
(aha0:4:0): "HP CD-Writer 6020 1.07" type 5 removable SCSI 2
worm0(aha0:4:0): Write-Once
npx0 flags 0x1 on motherboard
npx0: INT 16 interface
changing root device to sd0a
IP packet filtering initialized, divert enabled, logging limited to 100 packets/entry
aha0 is a 1542CP. Burning was done in single user mode to insure the
burner had the CPU's full attention.
>Description:
Dummy burn works perfectly. Real burn fails miserably after a couple
hundred K with
Jul 21 10:33:57 zephyr /kernel: worm0(aha0:4:0): ABORTED COMMAND asc:50,0 Write append error
Jul 21 10:33:58 zephyr /kernel: worm0(aha0:4:0): ABORTED COMMAND info:80005783 asc:50,0 Write append error
>How-To-Repeat:
wormcontrol select HP 4020i
wormcontrol prepdisk double dummy
wormcontrol track data
rtprio 5 team -v 1m 5 < cdr | rtprio 5 dd of=/dev/rworm0 obs=20k
wormcontrol fixate 1
works just fine. The same sequence without 'dummy' fails.
>Fix:
>Audit-Trail:
>Unformatted:
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