From owner-freebsd-questions  Thu Feb 20 11:37:14 2003
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Date: Thu, 20 Feb 2003 11:37:03 -0800 (PST)
From: David@webedited.com
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To: freebsd-questions@FreeBSD.ORG
Subject: Hang after soft reboot.
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Hi,

On a fresh, clean install of 4.7-RELEASE my (old) machine consistently
hangs while booting after soft reboot. Powering down and back up again, or
pressing the reset button will boot the machine, but if it is rebooted by
the OS then it hangs after detecting the isa bus "isa0: <ISA bus> on
motherboard".

This is a normal boot up, with the hang point indicated:


Copyright (c) 1992-2002 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD 4.7-RELEASE #0: Wed Oct  9 15:08:34 GMT 2002
    root@builder.freebsdmall.com:/usr/obj/usr/src/sys/GENERIC
Timecounter "i8254"  frequency 1193182 Hz
CPU: Cyrix 486DX2 (486-class CPU)
  Origin = "CyrixInstead"  DIR=0x321b  Stepping=3  Revision=2
real memory  = 20971520 (20480K bytes)
config> di pcic1
config> di sn0
config> di lnc0
config> di ie0
config> di fe0
config> di cs0
config> di bt0
config> di aic0
config> di aha0
config> di adv0
config> en ed0
config> po ed0 0x340
config> ir ed0 5
config> iom ed0 0xd8000
config> f ed0 0
config> q
avail memory = 15437824 (15076K bytes)
Preloaded elf kernel "kernel" at 0xc050f000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc050f09c.
md0: Malloc disk
npx0: <math processor> on motherboard
npx0: INT 16 interface
isa0: <ISA bus> on motherboard

<hangs here on soft reboot>

orm0: <Option ROM> at iomem 0xc0000-0xc5fff on isa0
ep0: <3Com 3C509-TPO EtherLink III> at port 0x300-0x30f irq 10 on isa0
ep0: Ethernet address 00:50:04:22:24:ce
ep1: <3Com 3C509-TPO EtherLink III> at port 0x210-0x21f irq 11 on isa0
ep1: Ethernet address 00:a0:24:ef:b9:05
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ata0 at port 0x1f0-0x1f7,0x3f6 irq 14 on isa0
ata1 at port 0x170-0x177,0x376 irq 15 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
vga0: <Generic ISA VGA> at port 0x3b0-0x3cf iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA (mono) <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16450
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16450
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
ed0 at port 0x340-0x35f iomem 0xd8000 irq 5 drq 0 on isa0
ed0: address 00:00:1b:4f:39:28, type NE2000 (16 bit) 
ad0: 234MB <Maxtor 7245 AT> [967/16/31] at ata0-master BIOSPIO
ad1: 516MB <QUANTUM LPS540A> [1120/16/59] at ata0-slave BIOSPIO
Mounting root from ufs:/dev/ad0s1a


I don't see anything in the Bios which would appear to effect this, and 
I've been unable to find anything similar in the archives or by searching 
google. Any ideas (or pointers on where to look) ?

Obviously rebooting is something I hope not to have to do very often, but 
it'd be nice to know it would actually work remotely etc.

Thanks,

DG



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