Date: Mon, 5 Jun 1995 15:00:03 -0700 From: soda@sra.co.jp To: freebsd-bugs Subject: kern/491: 2.0.5-ALPHA frequently panics on diskless configuration Message-ID: <199506052200.PAA12108@freefall.cdrom.com> In-Reply-To: Your message of Tue, 6 Jun 95 06:56:28 JST <9506052156.AA05197@sran230.sra.co.jp>
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>Number: 491
>Category: kern
>Synopsis: 2.0.5-ALPHA frequently panics on diskless configuration
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: freebsd-bugs (FreeBSD bugs mailing list)
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Jun 5 15:00:02 1995
>Originator: Noriyuki Soda
>Organization:
Software Research Associates, Inc., Japan
>Release: FreeBSD 2.0-BUILT-19950527 i386
>Environment:
2.0.5-ALPHA, using supplied "kernel.GENERIC" in "bin" distribution.
diskless configuration, swap is also NFS ("swapsize 16384" in cfg file).
note: FreeBSD-2.0-RELEASE and NetBSD-1.0[A] (:-)) is stable on
same machine with same configuration.
Hardware:
386DX 16MHz, memory 8MHz
120MB IDE disk (not used for *BSD).
aha1542b + 500MB scsi disk (not used for *BSD)
WD8013EBT compatible Ethernet Card irq 5, memory address 0xd8000
JEGA (Japanese AX personal computer) graphic card.
------------------------------------------------------------------------
FreeBSD 2.0.5-ALPHA #0: Mon May 29 15:29:35 1995
jkh@westhill.cdrom.com:/usr/src/sys/compile/GENERIC
CPU: i386DX (386-class CPU)
real memory = 7995392 (1952 pages)
avail memory = 6598656 (1611 pages)
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: CGA/EGA <16 virtual consoles, flags=0x0>
ed0 not found at 0x280
ed1 at 0x300-0x31f irq 5 maddr 0xd8000 msize 16384 on isa
ed1: address 00:00:c0:53:1f:e5, type WD8013EBT (16 bit)
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16450
sio1 not found at 0x2f8
sio2 not found at 0x3e8
sio3 not found at 0x2e8
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
lpt1 not found at 0xffffffff
lpt2 not found at 0xffffffff
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 765
fd0: 1.44MB 3.5in
wdc0 at 0x1f0-0x1f7 irq 14 on isa
wdc0: unit 0 (wd0): <PB3-AT-0Ch>
wd0: 128MB (264132 sectors), 667 cyls, 12 heads, 33 S/T, 512 B/S
wdc1 not found at 0x170
bt0 not found at 0x330
uha0 not found at 0x330
ahc1 not found
ahb0 not found
aha0: AHA-154x[AB]-V0.5, enabling residuals, target ops
aha0: reading board settings, dma=5 int=11 (bus speed defaulted)
aha0 at 0x330-0x333 irq 11 drq 5 on isa
aha0 waiting for scsi devices to settle
(aha0:0:0): "MAXTOR LXT-535S 8.57" type 0 fixed SCSI 1
sd0(aha0:0:0): Direct-Access 510MB (1045242 512 byte sectors)
aic0 not found at 0x340
nca0 not found at 0x1f88
nca1 not found at 0x350
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
matcd0 not found at 0xffffffff
scd0 not found at 0x230
eg0 not probed due to I/O address conflict with ed1 at 0x310
ep0 not probed due to I/O address conflict with ed1 at 0x300
ie0 not found at 0x360
ix0 not probed due to I/O address conflict with ed1 at 0x300
le0 not probed due to I/O address conflict with ed1 at 0x300
lnc0 not found at 0x280
lnc1 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
zp0 not probed due to I/O address conflict with ed1 at 0x300
npx0 on motherboard
npx0: 387 emulator
NFS SWAP: 133.137.20.19:/mnt2/prj/bsd.export/ext97
NFS ROOT: 133.137.20.19:/mnt2/prj/bsd.export/ext97/freebsd.2.0.5
------------------------------------------------------------------------
>Description:
2.0.5-ALPHA kernel suddenly reboots, with no message for most case.
While more than 10 times reboot, panic message appears only 2 times.
Here is the message.
------------------------------------------------------------------------
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xefc00000
fault code = supervisor read, page not present
instruction pointer = 0x8:0x0
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor elags = interrupt enabled, resume, IOPL = 0
current process = 79 (nfsiod)
interrupt mask = net tty bio
panic page fault
syncing disks...
------------------------------------------------------------------------
^
cursor is here, and machine freezed.
I don't know the exact condition when it reboots, it seems to happen
when switching virtual console. But it also happens when I never
touched console after booting, above panic message appears in such
case.
2.0.5-ALPHA has another problem on this machine.
Some daemons such as cron, ypbind sometimes dump core.
For example, syslog says
/kernel: pid 276: cron: uid 0: exited on signal 11
and cron.core is created on /root.
>How-To-Repeat:
>Fix:
>Audit-Trail:
>Unformatted:
[ NOTE: I sent this mail on June 4, but I never received automatic reply ]
[ from FreeBSD-gnats. So I fixed release name and re-send this mail. ]
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