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From: Scott Fritchie <fritchie@mr.net>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Occasionally evil: 2.2.1 + aic7880 + 2 x ahc2940?
Date: 01 Jun 1997 02:43:31 -0500
Organization: Minnesota Regional Network
Lines: 319
Sender: fritchie@data
Message-ID: <ytloh9qlqe4.fsf@mr.net>
NNTP-Posting-Host: data.mr.net
X-Newsreader: Gnus v5.3/Emacs 19.34
Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:42010
First I thought that it was one bad drive on the ahc0 controller, but
I'm *still* seeing panic-style instability after I yanked that drive.
Summary:
single PPro-200, Intel "Natoma" Motherboard, 256MB RAM
Intel EtherExpress Pro 10/100B (built-in)
Adaptec aic7880 Ultra SCSI host adapter
1 4GB Barracuda, 2 2GB Barracudas
Two Adaptec 2940A Ultra SCSI host adapters
Each have 3 4GB Barracudas
(All of the 'Cudas are relatively-new, about 3 months old)
Before removing one of the 2GB 'Cudas (sd1), when I exercised all 6
drives on ahc1 and ahc2 using "dd", similar "dd" stress on sd1 would
cause "panic: Couldn't find busy SCB" panics within 30 seconds. If I
exercised all 6 drives on hac1 and ahc2 and did the same thing to sd2,
no problem. Reseating/replacing ahc0's cable, etc. didn't make a
difference.
So I removed sd1 and labelled it "Icky 'Cuda" for its trip back to the
factory ... But then further stress, this time 12 dd's on three drives
on ahc1 and ahc2 (I'm a glutton for punishment), caused the following:
sd1(ahc0:2:0): SCB 0x2 - timed out in data out phase, SCSISIGI == 0x4
SEQADDR == 0x126
sd1(ahc0:2:0): abort message in message buffer
sd1(ahc0:2:0): SCB 3 - Abort Completed
panic: Couldn't find busy SCB
ahc0: Unexpected bus free. LASTPHASE == 0xa0
SEQADDR == 0x99
sd1(ahc0:2:0): SCB 0x2 - timed out in data out phase, SCSISIGI == 0x0
SEQADDR == 0x0
sd1, this time, was *idle*. Well, OK, it held the cwd for each dd &
the shell which spawned them. {sigh} This was very unexpected.
The mailing list archives as www.freebsd.org seem to show
somewhat-similar problems with 2.2 and previous 2.x releases, but
little info on fixes or workarounds. I'll include dmesg & kernel
config info following my .sig.
Since this box is supposed to be a Usenet News server and is
guaranteed to have its disks pounded into dust, any advice would be
greatly appreciated.
-Scott
---
Scott Lystig Fritchie, Network Engineer MRNet Internet Services, Inc.
fritchie@mr.net, PGP key #152B8725 Minnesota Regional Network
v: 612/362.5820, p: 612/637.9547 2829 University Ave SE
http://www.mr.net/~fritchie/ Minneapolis, MN 55414
--- snip --- snip --- snip --- snip --- snip --- snip --- snip ---
Copyright (c) 1992-1996 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 2.2.1-RELEASE #0: Fri May 30 19:11:13 CDT 1997
root@news3.mr.net:/usr/src/sys/compile/PPNEWS
CPU: Pentium Pro (199.90-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x619 Stepping=9
Features=0xfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,<b11>,MTRR,PGE,MCA,CMOV>
real memory = 268435456 (262144K bytes)
avail memory = 259964928 (253872K bytes)
Probing for devices on PCI bus 0:
chip0 <Intel 82440FX (Natoma) PCI and memory controller> rev 2 on pci0:0
fxp0 <Intel EtherExpress Pro 10/100B Ethernet> rev 1 int a irq 10 on pci0:10
fxp0: Ethernet address 00:a0:c9:06:aa:f8
ahc0 <Adaptec aic7880 Ultra SCSI host adapter> rev 0 int a irq 11 on pci0:13
ahc0: Using left over BIOS settings
ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs
ahc0 waiting for scsi devices to settle
(ahc0:0:0): "SEAGATE ST34371N 0484" type 0 fixed SCSI 2
sd0(ahc0:0:0): Direct-Access 4148MB (8496884 512 byte sectors)
(ahc0:2:0): "SEAGATE ST32171N 0280" type 0 fixed SCSI 2
sd1(ahc0:2:0): Direct-Access 2061MB (4222640 512 byte sectors)
ahc1 <Adaptec 2940A Ultra SCSI host adapter> rev 1 int a irq 9 on pci0:14
ahc1: aic7860 Single Channel, SCSI Id=7, 3 SCBs
ahc1 waiting for scsi devices to settle
(ahc1:0:0): "SEAGATE ST34371N 0484" type 0 fixed SCSI 2
sd2(ahc1:0:0): Direct-Access 4148MB (8496884 512 byte sectors)
(ahc1:1:0): "SEAGATE ST34371N 0484" type 0 fixed SCSI 2
sd3(ahc1:1:0): Direct-Access 4148MB (8496884 512 byte sectors)
(ahc1:2:0): "SEAGATE ST34371N 0484" type 0 fixed SCSI 2
sd4(ahc1:2:0): Direct-Access 4148MB (8496884 512 byte sectors)
ahc2 <Adaptec 2940A Ultra SCSI host adapter> rev 1 int a irq 11 on pci0:15
ahc2: aic7860 Single Channel, SCSI Id=7, 3 SCBs
ahc2 waiting for scsi devices to settle
(ahc2:0:0): "SEAGATE ST34371N 0484" type 0 fixed SCSI 2
sd5(ahc2:0:0): Direct-Access 4148MB (8496884 512 byte sectors)
(ahc2:1:0): "SEAGATE ST34371N 0484" type 0 fixed SCSI 2
sd6(ahc2:1:0): Direct-Access 4148MB (8496884 512 byte sectors)
(ahc2:2:0): "SEAGATE ST34371N 0484" type 0 fixed SCSI 2
sd7(ahc2:2:0): Direct-Access 4148MB (8496884 512 byte sectors)
chip1 <Intel 82371SB PCI-ISA bridge> rev 1 on pci0:18:0
chip2 <Intel 82371SB IDE interface> rev 0 on pci0:18:1
vga0 <VGA-compatible display device> rev 34 on pci0:20
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
ed0: disabled, not probed.
ed1: disabled, not probed.
fe0: disabled, not probed.
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
sio2: disabled, not probed.
sio3: disabled, not probed.
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
lpt1: disabled, not probed.
mse0: disabled, not probed.
psm0: disabled, not probed.
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (atapi): <CD-ROM CDU311/3.0j>, removable, accel, dma, iordis
wdc1: disabled, not probed.
bt0: disabled, not probed.
uha0: disabled, not probed.
aha0: disabled, not probed.
aic0: disabled, not probed.
nca0: disabled, not probed.
nca1: disabled, not probed.
sea0: disabled, not probed.
wt0: disabled, not probed.
mcd0: disabled, not probed.
matcdc0: disabled, not probed.
scd0: disabled, not probed.
ie0: disabled, not probed.
ep0 not found at 0x300
ex0: disabled, not probed.
ix0: disabled, not probed.
le0: disabled, not probed.
lnc0: disabled, not probed.
ze0: disabled, not probed.
zp0: disabled, not probed.
npx0 on motherboard
npx0: INT 16 interface
apm0: disabled, not probed.
changing root device to sd0a
ccd0-3: Concatenated disk drivers
WARNING: / was not properly dismounted.
--- snip --- snip --- snip --- snip --- snip --- snip --- snip ---
news3.mr.net# cat /usr/src/sys/i386/conf/PPNEWS
#
# GENERIC -- Generic machine with WD/AHx/NCR/BTx family disks
#
# For more information read the handbook part System Administration ->
# Configuring the FreeBSD Kernel -> The Configuration File.
# The handbook is available in /usr/share/doc/handbook or online as
# latest version from the FreeBSD World Wide Web server
# <URL:http://www.FreeBSD.ORG/>
#
# An exhaustive list of options and more detailed explanations of the
# device lines is present in the ./LINT configuration file. If you are
# in doubt as to the purpose or necessity of a line, check first in LINT.
#
# $Id: GENERIC,v 1.77.2.4 1997/02/22 20:31:24 joerg Exp $
machine "i386"
cpu "I386_CPU"
cpu "I486_CPU"
cpu "I586_CPU"
cpu "I686_CPU"
ident PPNEWS
maxusers 128
# KTRACE enables the system-call tracing facility ktrace(2).
# This adds 4 KB bloat to your kernel, and slightly increases
# the costs of each syscall.
options KTRACE #kernel tracing
options "CHILD_MAX=128"
options "OPEN_MAX=256"
options "MAXMEM=262144"
# MAXDSIZ, DFLDSIZ, & NBUF necessary? See Dejanews <5jj8jm$auf$1@news.gamma.ru>
# Damn, they don't fix the "bounce buffers out of range" boot error
options "MAXDSIZ=(256*1024*1024)"
options "DFLDSIZ=(256*1024*1024)"
options "NBUF=6144"
# XXX options BOUNCE_BUFFERS #include support for DMA bounce buffers
pseudo-device ccd 4
# 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 [KEEP THIS!]
options SCSI_DELAY=15 #Be pessimistic about Joe SCSI device
options UCONSOLE #Allow users to grab the console
options FAILSAFE #Be conservative
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
configkernelroot on wd0
controller isa0
controller eisa0
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
options ATAPI #Enable ATAPI support for IDE bus
options ATAPI_STATIC #Don't do it as an LKM
device wcd0 #IDE CD-ROM
# A single entry for any of these controllers (ncr, ahb, ahc, amd) is
# sufficient for any number of installed devices.
controller ncr0
controller amd0
controller ahb0
controller ahc0
controller bt0 at isa? port "IO_BT0" bio irq ? vector bt_isa_intr
controller uha0 at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr
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 seaintr
controller scbus0
device sd0
device od0 #See LINT for possible `od' options.
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
controller matcd0 at isa? port 0x230 bio
device scd0 at isa? port 0x230 bio
# syscons is the default console driver, resembling an SCO console
device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
#device vt0 at isa? port "IO_KBD" tty irq 1 vector pcrint
#options PCVT_FREEBSD=210 # pcvt running on FreeBSD >= 2.0.5
#options XSERVER # include code for XFree86
#options FAT_CURSOR # start with block cursor
# If you have a ThinkPAD, uncomment this along with the rest of the PCVT lines
#options PCVT_SCANSET=2 # IBM keyboards are non-std
# Mandatory, don't remove
device npx0 at isa? port "IO_NPX" irq 13 vector npxintr
#
# Laptop support (see LINT for more options)
#
device apm0 at isa? disable # Advanced Power Management
options APM_BROKEN_STATCLOCK # Workaround some buggy APM BIOS
# PCCARD (PCMCIA) support
#controller crd0
#device pcic0 at crd?
#device pcic1 at crd?
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 sio2 at isa? disable port "IO_COM3" tty irq 5 vector siointr
device sio3 at isa? disable port "IO_COM4" tty irq 9 vector siointr
device lpt0 at isa? port? tty irq 7 vector lptintr
device lpt1 at isa? port? tty
device mse0 at isa? port 0x23c tty irq 5 vector mseintr
device psm0 at isa? disable port "IO_KBD" conflicts tty irq 12 vector psmintr
# Order is important here due to intrusive probes, do *not* alphabetize
# this list of network interfaces until the probes have been fixed.
# Right now it appears that the ie0 must be probed before ep0. See
# revision 1.20 of this file.
device de0
device fxp0
device vx0
device ed0 at isa? port 0x280 net irq 5 iomem 0xd8000 vector edintr
device ed1 at isa? port 0x300 net irq 5 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 ex0 at isa? port 0x300 net irq 10 iomem 0xd0000 vector exintr
device fe0 at isa? port 0x300 net irq ? vector feintr
device ix0 at isa? port 0x300 net irq 10 iomem 0xd0000 iosiz 32768 vector ixintr
device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr
device lnc0 at isa? port 0x280 net irq 10 drq 0 vector lncintr
device ze0 at isa? port 0x300 net irq 5 iomem 0xd8000 vector zeintr
device zp0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zpintr
pseudo-device loop
pseudo-device ether
pseudo-device log
pseudo-device sl 1
# ijppp uses tun instead of ppp device
#pseudo-device ppp 1
pseudo-device tun 1
pseudo-device pty 16
pseudo-device gzip # Exec gzipped a.out's