Date: Sat, 9 Jan 1999 17:50:47 +0100 (CET) From: Wilko Bulte <wilko@yedi.iaf.nl> To: dfr@nlsystems.com (Doug Rabson) Cc: freebsd-alpha@FreeBSD.ORG Subject: Re: porting to EB64+ / Alpine Message-ID: <199901091650.RAA22522@yedi.iaf.nl> In-Reply-To: <Pine.BSF.4.01.9901091253270.391-100000@herring.nlsystems.com> from Doug Rabson at "Jan 9, 99 12:57:13 pm"
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As Doug Rabson wrote...
> On Sat, 9 Jan 1999, Wilko Bulte wrote:
>
> > I hacked a bit on the EB64+ bits taken from NetBSD and I am as far as
> > getting:
> >
> > boot: ethernet address: 00:00:f8:20:7f:45
> > netbbinfo invalid
> > boot: ethernet address: 00:00:f8:20:7f:45
> > netbbinfo invalid
How about this netbbinfo thingy? I now have 10base2 cable in use. Same
warning/error.
> > sc0 at port 0x60-0x6f irq 1 on isa0
> > sc0: CGA <16 virtual consoles, flags=0x0>
> > sio0 at port 0x3f8-0x3ff irq 4 on isa0
> > sio0: type 16550A
> > sio1: reserved for low-level i/o
> > panic: possible stack overflow
> >
> > panic
> > Stopped at Debugger..ng+0x24: ldq ra,0(sp)
> > <0xfffffc0000578230> <ra=0xfffffc00004
> > 698b8,sp=0xfffffc0000578230>
> > db>
> >
> > I have also seen 'panic: clock not attached'. As I'm trying to find my way
> > around in the kernel source tree I appreciate any hints.
>
> This usually happens if an interrupt is enabled but not handled. The
> interrupt exception tries to return but is immediately reentered with a
> few bytes less stack.
Hmmmm. I'll start digging.
> You would get the "clock not attached" if mcclock isn't probed properly
> but I can see that its present in your dmesg. Strange.
Well, below is an example of this clock not attached thingy. Indeed
mcclock is missing this time:
boot: ethernet address: 00:00:f8:20:7f:45
/kernel data=0x181ae8+0x24db0 syms=[0x8+0x3b220+0x8+0x2819a]
Entering kernel at 0xfffffc000031e2e0...
Copyright (c) 1992-1999 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.0-CURRENT #4: Sat Jan 9 11:20:42 CET 1999
root@axp33.iaf.nl:/usr/src/sys/compile/ALPINE
EB64+
Alpha 21064A Evaluation Board 274 MHz, 274MHz
8192 byte page size, 1 processor.
CPU: EV45 (21064A) major=6 minor=2
OSF PAL rev: 0x100070002012d
real memory = 65028096 (63504K bytes)
avail memory = 58761216 (57384K bytes)
Preloaded elf kernel "kernel" at 0xfffffc000050c000.
apecs0: <DECchip 21072 Core Logic chipset>
isa0
Probing for devices on PCI bus 0:
ncr0: <ncr 53c810 fast10 scsi> rev 0x01 int a irq 7 on pci0.5.0
de0: <Digital 21040 Ethernet> rev 0x23 int a irq 0 on pci0.6.0
de0: DEC 21040 [10Mb/s] pass 2.3
de0: address 00:00:f8:20:7f:45
vga0: <S3 Trio 64 graphics accelerator> rev 0x16 int a irq 1 on pci0.7.0
chip0: <Intel 82378ZB PCI to ISA bridge> rev 0x03 on pci0.8.0
sc0 at port 0x60-0x6f irq 1 on isa0
sc0: CGA <16 virtual consoles, flags=0x0>
sio0 at port 0x3f8-0x3ff irq 4 on isa0
sio0: type 16550A
sio1: reserved for low-level i/o
panic: cpu_initclocks: no clock attached
panic
Stopped at Debugger..ng+0x24: ldq ra,0(sp)
<0xfffffc0000511cc0>
<ra=0xfffffc0000413f58,sp=0xfffffc0000511cc0>
db>
db>
The reason for this escapes me at the moment.
Wilko
_ ______________________________________________________________________
| / o / / _ Bulte email: wilko@yedi.iaf.nl
|/|/ / / /( (_) Arnhem, The Netherlands WWW : http://www.tcja.nl
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