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From: rd@cs.ucf.edu
Newsgroups: comp.os.386bsd.questions,comp.unix.bsd.freebsd.misc
Subject: FreeBSD 2.0 crashing
Date: 04 Mar 1995 15:16:42 GMT
Organization: Genesis Controls, Inc.
Lines: 80
Message-ID: <RD.95Mar4101642@tarpit.oau.org>
NNTP-Posting-Host: localhost.oau.org
I installed 2.0 from the January 1995 Walnut Creek cdrom and find
it frequently crashes. FWIW, the same hardware has successfully
run BSD386 1.1, NetBSD 1.0, and QNX 4.22.
The crashes occur frequently while building a kernel and lock the
system such that only a hardware reset will recover. CAPS LOCK
doesn't even toggle the keyboard LED when this condition occurs.
Disabling the cache doesn't correct the problem.
I'm particularly stumped since this machine was happily running
NetBSD 1.0 from the very same partition immediately before I
replaced it with FreeBSD 2.0.
Any suggestions are welcome.
Here's the dmesg output (AMD 386DX-40 w/ 64k cache &
ULSI US83C87 math copro):
FreeBSD 2.0-RELEASE #2: Tue Nov 22 13:59:59 1994
root@fnord.cdrom.com:/usr/src/sys/compile/GENERIC
CPU: i386DX (386-class CPU)
real memory = 4194304 (1024 pages)
avail memory = 2998272 (732 pages)
using 42 buffers containing 348160 bytes of memory
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA mono <4 virtual consoles>
ed0 not found at 0x280
ed1 at 0x300-0x31f irq 10 maddr 0xd8000 msize 16384 on isa
ed1: address 00:00:c0:9d:bb:41, type WD8013EPC (16 bit)
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16450
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16450
sio2 not found at 0x3e8
sio3 not found at 0x2e8
lpt0 not found at 0xffffffff
lpt1 not found at 0xffffffff
lpt2 not found at 0xffffffff
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: [0: fd0: 1.44MB 3.5in]
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <WDC AC2540H>
wd0: 515MB (1056384 total sec), 1048 cyl, 16 head, 63 sec, bytes/sec 512
wdc1 not found at 0x170
bt0 not found at 0x330
uha0 not found at 0x330
ahc0 not found
ahb0 not found
aha0 not found at 0x330
aic0 not found at 0x340
pas0 not found at 0x1f88
sea0 not found
wt0 not probed due to I/O address conflict with ed1 at 0x300
mcd0 not probed due to I/O address conflict with ed1 at 0x300
mcd1: timeout getting status
mcd1 not found at 0x340
ie0 not found at 0x360
ep0 not probed due to I/O address conflict with ed1 at 0x300
is0 not found at 0x280
le0 not probed due to I/O address conflict with ed1 at 0x300
ze0 not probed due to I/O address conflict with ed1 at 0x300
npx0 at 0xf0-0xff irq 13 on motherboard
I have managed to configure a kernel with DODUMP, KTRACE,
DIAGNOSTIC, DDB and "SYMTAB_SPACE=158940" as well as removing
some unneeded drivers and options. That kernel drops into
the debugger sometime after probing devices with a
panic: holdrele: holdcnt
`show map' indicates "fatal trap 12: page fault while in kernel mode".
With all the crashing problems while building that kernel, I'm not
at all confident that the latter kernel is worth further debugging.
--
RD Thrush rd@cs.ucf.edu FAX (407) 841-8004
Genesis Controls, Inc. Voice (407) 425-4845