RELENG_4 crash: UDMA100 drive on with old UDMA33 controller

[Tenebrae]

On Mon, 12 Jan 2004, Kurt D. Zeilenga wrote:

> I am having problems with RELENG_4 (cvsup last night) crashing.  I
> recently purchased a WDC WD1600JB (160GB) disk drive to attach to my
> trusty, old home server:
>  ASUS P5A-B Motherboard with integrated Acer UDMA33 controller
>  Fujitsu MPC3032AT/6018 (3GB) disk drive (channel 0 master)
>  FX322M/w03 CDROM drive (channel 0 slave)
>
> I presently have the WD1600JB was added as the channel 1 master
> (no slave).  It is connected to the controller using the 80
> conductor/40-pin cable provided with the drive.  (I've also
> tried to setups with the WD1600JB replacing the CDROM drive
> as slave on channel 0, using both 80/40 and 40/40 cable with
> like results.)  I have configured the BIOS (as directed in
> the WDC documents) for C/H/S for 1023/16/63 (528M).
>
> RELENG_4 sees that a UDMA100 drive is connected to ata1 and
> tries fallback to UDMA33 and then to PIO4.  This is the last
> page of messages (which shows the panic).  I'll try to type
> in more if this isn't enough (sorry, but I don't a laplink
> cable handy):
>
> ad2: trying fallback to PIO mode
> ata1: resetting devices .. done
>
> Fatal trap 12: page fault while in kernel mode
> fault virtual address	= 0x78007a
> fault code		= supervisor read, page not present
> instruction pointer	= 0x8:0xc018760e
> stack pointer		= 0x10:0xc03b9314
> frame pointer		= 0x10:0xc02931c
> code segment		= base 0x0, limit 0xfffff, type 0x1b
> 			= DPL 0, pres 1, def32 1, gran 1
> processor eflags	= interrupt enabled, resume, IOPL = 0
> current process	= Idle
> interrupt mask		= bio
> trap number		= 12
> panic: page fault
>
> This seems to be related problems others have noted with regards
> to Acer UDMA33 controller and RELENG_4.  It does seem specific
> to 4.x as tests against 4.8 failed same as above yet tests against
> FreeBSD 5.2 and NetBSD 1.6 were okay.

I haven't really noticed a problem with crashing or panics, but I do
have the resetting devices errors show up in my logs quite a bit.
I had thought it was just related to the [expletive deleted] IBM drives,
but it would seem that you are using the same motherboard I am.
I keep meaning to just purchase a UDMA-100 controller card to stick in
there...but now my server's on the other side of the continent from me.
Ah well.
Me too, almost.
								-Tenebrae.
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