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Date:      Sat, 17 Oct 1998 14:35:47 -0600
From:      Brett Glass <brett@lariat.org>
To:        sos@FreeBSD.ORG
Cc:        bugs@FreeBSD.ORG
Subject:   Re: Crash workaround: ATAPI and ATAPI_STATIC required in 2.2.7 wd  driver
Message-ID:  <4.1.19981017143202.06f40410@mail.lariat.org>
In-Reply-To: <199810172023.WAA11624@sos.freebsd.dk>
References:  <4.1.19981017135219.06f00520@mail.lariat.org>

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At 10:23 PM 10/17/98 +0200, Søren Schmidt wrote:
 
>Hmm, not really I just took a look at the 2.2.7 wd.c...
>Does your BIOS allow you to set the parameters used for the disk,
>ie can you hardwire it to a specific PIO mode ?? 

Nope. There's no setting for that. This a 486 machine; the BIOS
was developed before people talked about "PIO modes."

>Maybe you already stated that, but what chipset does your machine(s)
>have ?? Some chipsets does push the timing quite a bit which in
>some cases causes problems.

This is a Zeos "Rattler" board with an Intel chipset. The Saturn,
I think. Here's what I see at boot time:

FreeBSD 2.2.7-RELEASE #0: Fri Oct 16 23:54:10 MDT 1998
    brett@lariat.lariat.org:/usr/src/sys/compile/LARIAT
Calibrating clock(s) ... i8254 clock: 1193135 Hz
CLK_USE_I8254_CALIBRATION not specified - using default frequency
CPU: i486 DX4 (486-class CPU)
  Origin = "GenuineIntel"  Id = 0x480  Stepping=0
  Features=0x3<FPU,VME>
real memory  = 16777216 (16384K bytes)
Physical memory chunk(s):
0x00001000 - 0x0009efff, 647168 bytes (158 pages)
0x001b4000 - 0x00ffdfff, 14983168 bytes (3658 pages)
avail memory = 15065088 (14712K bytes)
pcibus_setup(1):        mode 1 addr port (0x0cf8) is 0x00000000
pcibus_setup(1a):       mode1res=0x00000000 (0x80000000)
pcibus_setup(1b):       mode1res=0x00000000 (0xff000001)
pcibus_setup(2):        mode 2 enable port (0x0cf8) is 0x00
pcibus_setup(2a):       mode2res=0x0e (0x0e)
pcibus_setup(2a):       now trying mechanism 2
pcibus_check:   device 0 is there (id=04838086)
Probing for devices on PCI bus 0:
        configuration mode 2 allows 16 devices.
chip0 <Intel 82424ZX (Saturn) cache DRAM controller> rev 4 on pci0:0:0
        CPU: 486DX2 or 486DX4, bus=33MHz, CPU->Memory posting ON
        Warning: NO DRAM parity!
        Cache: 256KB writeback, cache clocks=2-1-1-1
        DRAM: page mode code fetch, read and write, memory clocks=X-1-2-1
        CPU->PCI: posting ON, burst mode ON
        PCI->Memory: posting OFF
chip1 <Intel 82378ZB PCI-ISA bridge> rev 3 on pci0:2:0
        Bus Modes: Resource Lock,
        Coprocessor errors enabled
        Keyboard controller: 60h,62h,64h,66h
        RTC: 70h-77h
        Port 92: enabled
vga0 <Display device> rev 0 on pci0:13:0
        mapreg[10] type=0 addr=10000000 size=800000.
pci0: uses 8388608 bytes of memory from 10000000 upto 107fffff.
Probing for devices on the ISA bus:

...etc.


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