See "DISK READING PROBLEM BELOW". Been a while since I was on this list.

The "b" first: I grabbed the floppy image from snapshots, and changed the path
to grab the snapshot images when installing via ftp. (4 different sites done
starting this past Monday). The "sticky" bit is not set for su, sudo, xterm,
etc. So, "make build" to fix it. System was 55% idle -- I/O bound. Turned
on softdep and noatime.

Then "a" ASUS A7N8X-DX board.

Old pentium iii 850mhz DELL creamed data in a file in a pattern consistant with
bad memory.
    There was a verified loss of data in file io.h of linux kernel:
    /*
     * This fele is nubject to the terms and conditions of the GNU General Public
i->e, s->n .. same bit in both words was changed.

Confidence in machine left immediately, that is when I found out that
I couldn't boot the floppy for memtest86.

So, I have memory problems (or something worse!) with my 850mhz pentium III
Dell precision 220, and the floppy wouldn't boot.

On to the new machine!

Tuesday 1/15, General Nano Systems, my wife and I picked up the following:
        1 - ASUS A7N8X-DX mainboard $184.99
        1 - AMD XP 2700 $379.99
        3 - 256MB PC 2700 333mhz DDR memory $69.99
        2 - Western Digital 80G Special Edition $129.99
        1 - Lite On 48X/24X/48X CD-RW $49.99
        1 - Teac 1.44 Floppy Drive $12.59
        1 - Case $79.99
        1 - Zeus 400W power supply $79.99
        1 - chipset fan (for broken video card) $9.99

Had typical problems setting up master/slave, positioning drives, etc.
Kept having problems with the 80gb disk drives. Went through jumpers
on mainboard, cables, reading on-line, etc. The disk drives would get
disk errors and would go to 1/10th speed. Replaced fan on video card.

The built-in ethernet from 3Com requires pulling out the 100baseT cable
and plugging it back in every now and then to keep it going. Only works
on normal 10baseT (half-duplex). The other built-in is not recognized
by OpenBSD. Ended up using a pci card.

Wednesday evening, my wife and I went through very systematic diagnosing,
and we were hoping that the two cables out of three were bad. Got new
cables at 8:40pm. Yeah, they didn't fix it.

Thursday. More testing. Copying saved data from Dell's hard disk to
several places. Built latest OpenBSD kernel. No difference. Installed
RedHat 7.3 and 8.0, no difference. Installed our kernel 2.4.20 for i386.
No difference.

------------------------------------------------------------------------------
**** DISK READING PROBLEM DISK READING PROBLEM DISK READING PROBLEM ****
**** DISK READING PROBLEM DISK READING PROBLEM DISK READING PROBLEM ****

Friday morning. Found out that the disk would read nicely if they were
mounted only in read-only mode. As soon as mounted in write mode, the
date of last mount was written to disk, and errors happened.

Enough, track down driver, change it from 4 retries to 20. Lots of messages,
no fix. Changed it so that it would not lower speed upon errors. Lots of
messages. After 4 retries, it would re-issue the multi-sector write in
single sector mode. This worked. Did not happen on every write.
Could do "dd if=/dev/zero of=A.big bs=1024k count=500" and have it do
it in about 12 seconds. Then lots of errors as the inodes were allocated
on disk. Changed it to try single writes upon any error. 1/5th the messages.

Looks from numbers that if the starting sector is not a multiple of 4, it
gets an error when writing. Just guessing, not verified.

Friday Noon, wife talking with General Nano Systems guy. I'm ready to get
a Macintosh. They test system. See the problem, believe it. Try different
80g WD disks. No difference. Swap IDE ports, etc. Try 80g with normal 2mb
of ram buffer. No difference. Tried Seagate 80g. Symptoms different.
Appears to work. Then "DMA missed interrupt". System really hosed.
Thank goodness for OpenBSD boot floppy being used for the tests. Tried
80gb IBM Deskstar. (Yeah, the e-mail about problems were remembered.)
Works fine. No problems. Just a touch bit slower than the western digitals
were. 13 seconds to write 500mb of zero.

IBM initializes their disks with different values than Maxtor and Western
Digital. Can't get "ccd's" to work on OpenBSD. It believes that there
is a legal setup on the disk and uses it -- no way to "initialize" one.

Changed to using "raidframe".

Oh, can't get my hands on any SATA drives (cheap/easy), so can't use the
hardware RAID on the board. Flipping jumper position makes machine boot
about one minute faster -- doesn't time out looking for SATA drives.

Haven't tried any other things. Still setting up the machine. Time for
bed Friday night. Very frustrating week.

Sunday evening. I can print. I got X working again. (Every version of X
does something to the configuration file that is not compatible.) The first
video card was easy, the other two created really nasty hangs. (power switch)

------------------------------------------------------------------------------
OpenBSD 3.2-current (GENERIC) #0: Sun Jan 19 17:55:39 CST 2003
    rootlocalhost:/sys/arch/i386/compile/GENERIC
cpu0: AMD K7 (Athlon) ("AuthenticAMD" 686-class) 2.18 GHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SYS,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SIMD
real mem = 804827136 (785964K)
avail mem = 740536320 (723180K)
using 4278 buffers containing 40345600 bytes (39400K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(96) BIOS, date 12/06/02, BIOS32 rev. 0 0xfb530
apm0 at bios0: Power Management spec V1.2
apm0: AC on, battery charge unknown
pcibios0 at bios0: rev. 2.1 0xf0000/0xdf84
pcibios0: PCI IRQ Routing Table rev. 1.0 0xfdeb0/208 (11 entries)
pcibios0: PCI Exclusive IRQs: 5 11
pcibios0: no compatible PCI ICU found
pcibios0: Warning, unable to fix up PCI interrupt routing
pcibios0: PCI bus #3 is the last bus
bios0: ROM list: 0xc0000/0xa800 0xcc000/0x1800 0xce000/0x800 0xcf000/0x800
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Nvidia nForce2 Host-PCI" rev 0xa2
"Nvidia nForce2" rev 0xa2 at pci0 dev 0 function 1 not configured
"Nvidia nForce2" rev 0xa2 at pci0 dev 0 function 2 not configured
"Nvidia nForce2" rev 0xa2 at pci0 dev 0 function 3 not configured
"Nvidia nForce2" rev 0xa2 at pci0 dev 0 function 4 not configured
"Nvidia nForce2" rev 0xa2 at pci0 dev 0 function 5 not configured
pcib0 at pci0 dev 1 function 0 "Nvidia nForce2 PCI-ISA" rev 0xa3
"Nvidia nForce2 SMBus" rev 0xa2 at pci0 dev 1 function 1 not configured
ohci0 at pci0 dev 2 function 0 "Nvidia nForce2 USB" rev 0xa3: irq 5, OHCI version 1.0, legacy support
usb0 at ohci0: USB revision 1.0
uhub0 at usb0
uhub0: vendor 0x0000 OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
ohci1 at pci0 dev 2 function 1 "Nvidia nForce2 USB" rev 0xa3pci_intr_map: no mapping for pin B
: couldn't map interrupt
"Nvidia nForce2 USB2" rev 0xa3 at pci0 dev 2 function 2 not configured
"Nvidia nForce2 LAN" rev 0xa1 at pci0 dev 4 function 0 not configured
"Nvidia nForce2 Audio" rev 0xa2 at pci0 dev 5 function 0 not configured
"Nvidia nForce2 Audio" rev 0xa1 at pci0 dev 6 function 0 not configured
ppb0 at pci0 dev 8 function 0 "Nvidia nForce2 PCI-PCI" rev 0xa3
pci1 at ppb0 bus 1
vga1 at pci1 dev 6 function 0 "Nvidia Vanta" rev 0x15
wsdisplay0 at vga1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
xl0 at pci1 dev 7 function 0 "3Com 3c905C 100Base-TX" rev 0x78: irq 11 address 00:01:03:de:f6:0d
exphy0 at xl0 phy 24: Broadcom 3C905C internal PHY, rev. 7
"Nvidia Vanta" rev 0x15 at pci1 dev 8 function 0 not configured
"Nvidia Vanta" rev 0x15 at pci1 dev 10 function 0 not configured
pciide0 at pci0 dev 9 function 0 "Nvidia nForce2 IDE" rev 0xa2: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility
wd0 at pciide0 channel 0 drive 0: <IC35L080AVVA07-0>
wd0: 16-sector PIO, LBA, 78533MB, 16383 cyl, 16 head, 63 sec, 160836480 sectors
wd1 at pciide0 channel 0 drive 1: <IC35L080AVVA07-0>
wd1: 16-sector PIO, LBA, 78533MB, 16383 cyl, 16 head, 63 sec, 160836480 sectors
wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5
wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 5
wd2 at pciide0 channel 1 drive 0: <Maxtor 5T040H4>
wd2: 16-sector PIO, LBA, 38146MB, 16383 cyl, 16 head, 63 sec, 78125000 sectors
atapiscsi0 at pciide0 channel 1 drive 1
scsibus0 at atapiscsi0: 2 targets
cd0 at scsibus0 targ 0 lun 0: <LITE-ON, LTR-48246S, SS09> SCSI0 5/cdrom removable
wd2(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 5
cd0(pciide0:1:1): using PIO mode 4, Ultra-DMA mode 2
ppb1 at pci0 dev 12 function 0 "Nvidia nForce2 PCI-PCI" rev 0xa3
pci2 at ppb1 bus 2
xl1 at pci2 dev 1 function 0 "3Com 3c9201 100Base-TX" rev 0x40: irq 5 address 00:26:54:08:23:1c
ukphy0 at xl1 phy 2: Generic IEEE 802.3u media interface
ukphy0: OUI 0x000895, model 0x0012, rev. 1
"Nvidia nForce2 FireWire" rev 0xa3 at pci0 dev 13 function 0 not configured
ppb2 at pci0 dev 30 function 0 "Nvidia nForce2 Host-AGP" rev 0xa2
pci3 at ppb2 bus 3
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
sysbeep0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
biomask c060 netmask c860 ttymask d8e2
pctr: user-level cycle counter enabled
mtrr: Pentium Pro MTRR support
dkcsum: wd0 matched BIOS disk 80
dkcsum: wd1 matched BIOS disk 81
dkcsum: wd2 matched BIOS disk 82
root on wd0a
rootdev=0x0 rrootdev=0x300 rawdev=0x302

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