Date: Thu, 18 Jan 1996 11:20:22 +1000 From: Stephen Hocking <sysseh@devetir.qld.gov.au> To: FreeBSD-gnats-submit@freebsd.org Subject: kern/951: DEVFS panic with SCSI tape Message-ID: <199601180120.BAA19202@netfl15a.devetir.qld.gov.au> Resent-Message-ID: <199601180720.XAA26427@freefall.freebsd.org>
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>Number: 951
>Category: kern
>Synopsis: -current kernel crashes with devfs error on bootup
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Jan 17 23:20:03 PST 1996
>Last-Modified:
>Originator: Stephen Hocking
>Organization:
DEVETIR
>Release: FreeBSD 2.2-CURRENT i386
>Environment:
Kernel built at ctm src-cur 1392 with the following config file.
machine "i386"
cpu "I486_CPU"
cpu "I586_CPU" # out until transient problem fixed
ident bloop
maxusers 20
options DEVFS # testing DEVFS
config kernel root on sd0
options "COMPAT_43"
options USER_LDT #allow user-level control of i386 ldt
options SYSVSHM
options SYSVSEM
options SYSVMSG
options "SHMMAXPGS=1024" # Max 4Mb shared mem
options DDB
options KTRACE #kernel tracing
options UCONSOLE
options INET #Internet communications protocols
pseudo-device ether #Generic Ethernet
pseudo-device loop #Network loopback device
pseudo-device sl 2 #Serial Line IP
pseudo-device bpfilter 4 #Berkeley packet filter
pseudo-device disc #Discard device
pseudo-device tun 1 #Tunnel driver(user process ppp)
options "TCP_COMPAT_42" #emulate 4.2BSD TCP bugs
options MROUTING # Multicast routing
options FFS #Fast filesystem
options MFS #Memory File System
controller scbus0 #base SCSI code
device ch0 #SCSI media changers
device sd0 #SCSI disks
device st0 #SCSI tapes
device cd0 #SCSI CD-ROMs
device od0 #SCSI optical disk
options SCSIDEBUG
options SCSI_REPORT_GEOMETRY
pseudo-device pty 16 #Pseudo ttys - can go as high as 64
pseudo-device log #Kernel syslog interface (/dev/klog)
pseudo-device vn #Vnode driver (turns a file into a device)
controller isa0
options "AUTO_EOI_1"
options BOUNCE_BUFFERS
options XSERVER # include code for XFree86
options FAT_CURSOR # start with block cursor
device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
options HARDFONTS
options "MAXCONS=16"
device npx0 at isa? port "IO_NPX" irq 13 vector npxintr
controller aha0 at isa? port "IO_AHA0" bio irq ? drq 5 vector ahaintr
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
options FDSEEKWAIT="16"
device lpt0 at isa? port? tty irq 7 vector lptintr
device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr
device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr
device ed0 at isa? port 0x280 net irq 10 iomem 0xd8000 vector edintr
options BROKEN_BUS_CLOCK #PAS-16 isn't working and OPTI chipset
options EXCLUDE_SBPRO #PAS-16
options "SBC_IRQ=9" #PAS-16. Must match irq on sb0 line.
controller snd0
device pas0 at isa? port 0x388 irq 12 drq 6 vector pasintr
device sb0 at isa? port 0x220 irq 9 conflicts drq 1 vector sbintr
device opl0 at isa? port 0x38a conflicts
device pca0 at isa? port IO_TIMER1 tty
device joy0 at isa? port "IO_GAME"
options COMPAT_LINUX
Here is dmesg from an earlier working kernel (essentially the same
except it still has the wt0 device).
FreeBSD 2.2-CURRENT #9: Tue Jan 16 11:21:40 EST 1996
toor@unixtest.devetir.qld.gov.au:/usr/src/sys/compile/bloop
CPU: i486DX (486-class CPU)
real memory = 8388608 (8192K bytes)
avail memory = 6676480 (6520K bytes)
DEVFS: ready for devices
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 10 maddr 0xd8000 msize 16384 on isa
ed0: address 00:00:c0:d2:b2:72, type SMC8216T (16 bit)
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16450
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16450
pca0 on motherboard
pca0: PC speaker audio driver
aha0 at 0x330-0x333 irq 11 drq 5 on isa
(aha0:0:0): "SEAGATE ST12550N 0013" type 0 fixed SCSI 2
sd0(aha0:0:0): Direct-Access 2040MB (4178874 512 byte sectors)
sd0(aha0:0:0): with 2708 cyls, 19 heads, and an average 81 sectors/track
(aha0:6:0): "EMERALD TDC 3800 R02." type 1 removable SCSI 1
st0(aha0:6:0): Sequential-Access density code 0x0, drive empty
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 765
fd0: 1.44MB 3.5in
wt0 not found at 0x300
npx0 on motherboard
npx0: INT 16 interface
pas0 at 0x388 irq 12 drq 6 on isa
pas0: <Pro AudioSpectrum 16D rev 63>
sb0 at 0x220 irq 9 drq 1 on isa
sb0: <SoundBlaster 2.0>
opl0 at 0x38a on isa
opl0: <Yamaha OPL-3 FM>
joy0 at 0x201 on isa
joy0: joystick
devfs ready to run
>Description:
I created a new kernel after removing the info for the wt0 tape
as it broke and I replaced it with a Tandberg QIC-525Mb SCSI tape.
When booting up, we see a bunch of messages flash up after it probes
the SCSI devices, to do with not being able to find/create slots for
what looks like SCSI tape devices. Much of the error messages are
non-7bit ascii, i.e. there's a lot of garbage in there. After these
messages it then panics & drops into the debugger. An earlier
kernel (about a week old) works fine.
Here's the stack backtrace from DDB.
_dev_link(f0154941,efbffe84,0,efbffe84,f015493a) at _dev_link+0x25
_stattach(f0556780) at _stattach+0x48d
_scsi_device_attach(f0556780) at _scsi_device_attach+0xb3
_scsi_probe_bus(0,6,0,1e8480,f055af00) at _scsi_probe_bus+0x19d
_scsi_attachdevs(f0548f70,f01b4270,0,efbfff60,f01897e3) at
_scsi_attachdevs+0x8e
_ahaattach(f01b4270) at _ahaattach+0x7a
_config_isadev_c(f01b4270,f01ac364,0,efbfff88,f01893c0) at
_config_isadev_c+0x1df
_config_isadev(f01b4270,f01ac364) at _config_isadev+0x10
_isa_configure(efbfffac,f0104f5a,0,1ebf24,,1f8000) at _isa_configure+0x154
_configure(0) at _configure+0x2a
_main(efbfffb8,800,800000,f017727a,f01003ac,f01ec128,17,30,1ebf24,1f8000,1f8000
,0,84740407) at _main+0x92
_begin() at _begin+0x59
>How-To-Repeat:
Build kernel with my config file & boot with my devices.
>Fix:
Yes please!
--
I do not speak for the Worker's Compensation Board of Queensland -
They don't pay me enough for that!
>Audit-Trail:
>Unformatted:
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