Date: Mon, 22 Jan 1996 08:38:18 -0500 From: "Jeff Hupp" <jhupp@novellnet.gensys.com> To: Freebsd-bugs@freefall.freebsd.org Subject: Bug in vm code? Message-ID: <1FFADB92BED@Novellnet.Gensys.com>
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On two machines I am getting the following error followed by a
hang(system does not panic or reboot.)
biodone: buffer already done.
This is one machine:
It is running as a news server and the problem tends to occure more
often during high disk activity, however I have not been able to generate
it 'on demand' by inducing large amounts of disk activity.
$dmesg
FreeBSD 2.1.0-RELEASE #0: Sun Dec 17 13:45:48 CST 1995
jeff@news.hal-pc.org:/usr/src/sys/compile/HALPC21
CPU: i486DX (486-class CPU)
real memory = 33554432 (32768K bytes)
avail memory = 31076352 (30348K bytes)
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.44MB 3.5in
ahc1: 284x Single Channel, SCSI Id=7, aic7770 <= Rev C, 4 SCBs
ahc1 at 0x1000-0x10ff irq 11 on eisa slot 1
ahc1 waiting for scsi devices to settle
(ahc1:0:0): "IMPRIMIS 94601-15 1250" type 0 fixed SCSI 1
sd0(ahc1:0:0): Direct-Access 989MB (2026965 512 byte sectors)
(ahc1:1:0): "SEAGATE ST32550N 0016" type 0 fixed SCSI 2
sd1(ahc1:1:0): Direct-Access 2047MB (4194058 512 byte sectors)
(ahc1:2:0): "SEAGATE ST32550N 0016" type 0 fixed SCSI 2
sd2(ahc1:2:0): Direct-Access 2047MB (4194058 512 byte sectors)
(ahc1:3:0): "SEAGATE ST32550N 0016" type 0 fixed SCSI 2
sd3(ahc1:3:0): Direct-Access 2047MB (4194058 512 byte sectors)
1 3C5x9 board(s) on ISA found at 0x300
ep0 at 0x300-0x30f irq 10 on isa
ep0: aui/bnc/utp[*BNC*] address 00:a0:24:08:a6:3a irq 10
npx0 on motherboard
npx0: INT 16 interface
stray irq 7
and it's kernel looks like this:
#
#
#
# HALPC20 -- HAL-PC's machine with AHA disk controler
#
machine "i386"
#cpu "I386_CPU"
cpu "I486_CPU"
#cpu "I586_CPU"
ident HALPC
maxusers 20
#options MATH_EMULATE #Support for x87 emulation
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
#options NFS #Network Filesystem
options MSDOSFS #MSDOS Filesystem
options "CD9660" #ISO 9660 Filesystem
options PROCFS #Process filesystem
options "COMPAT_43" #Compatible with BSD 4.3
options "SCSI_DELAY=15" #Be pessimistic about Joe SCSI device
options BOUNCE_BUFFERS #include support for DMA bounce buffers
#options UCONSOLE #Allow users to grab the console
options QUOTA #enable disk quotas
#options "COM_MULTIPORT"
#options GATEWAY #Pass IP Packets.
config kernel root on sd0
controller isa0
#controller pci0
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
disk fd0 at fdc0 drive 0
#disk fd1 at fdc0 drive 1
#tape ft0 at fdc0 drive 2
#controller wdc0 at isa? port "IO_WD1" bio irq 14 vector wdintr
#disk wd0 at wdc0 drive 0
#disk wd1 at wdc0 drive 1
#controller wdc1 at isa? port "IO_WD2" bio irq 15 vector wdintr
#disk wd2 at wdc1 drive 0
#disk wd3 at wdc1 drive 1
#controller ncr0
#controller ahc0
#controller bt0 at isa? port "IO_BT0" bio irq ? vector btintr
#controller uha0 at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr
controller ahc1 at isa? bio irq ? vector ahcintr
#controller ahb0 at isa? bio irq ? vector ahbintr
#controller aha0 at isa? port "IO_AHA0" bio irq ? drq 5 vector ahaintr
#controller aic0 at isa? port 0x340 bio irq 11 vector aicintr
#controller nca0 at isa? port 0x1f88 bio irq 10 vector ncaintr
#controller nca1 at isa? port 0x350 bio irq 5 vector ncaintr
#controller sea0 at isa? bio irq 5 iomem 0xc8000 iosiz 0x2000 vector seai
ntr
controller scbus0
device sd0
device sd1
device st0
device cd0 #Only need one of these, the code dynamically grows
#device wt0 at isa? port 0x300 bio irq 5 drq 1 vector wtintr
#device mcd0 at isa? port 0x300 bio irq 10 vector mcdintr
#device mcd1 at isa? port 0x340 bio irq 11 vector mcdintr
#device scd0 at isa? port 0x230 bio
device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
device npx0 at isa? port "IO_NPX" irq 13 vector npxintr
#device lpt0 at isa? port? tty irq 7 vector lptintr
#device lpt1 at isa? port? tty
#device lpt2 at isa? port? tty
#device de0
#device ed0 at isa? port 0x340 net irq 10 iomem 0xd8000 vector edintr
#device ed1 at isa? port 0x300 net irq 10 iomem 0xd8000 vector edintr
#device ie0 at isa? port 0x360 net irq 7 iomem 0xd0000 vector ieintr
device ep0 at isa? port 0x300 net irq 10 vector epintr
#device lnc0 at isa? port 0x280 net irq 10 drq 0 vector lncintr
#device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr
#device ze0 at isa? port 0x300 net irq 5 iomem 0xd8000 vector zeintr
--
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Nursing does not diminish the beauty of a woman's breasts;
it enhances their charm by making them look lived in and happy.
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