On 11/18/09, Hou, Ruoyu <phoenixhou@gmail.com> wrote:
quoted text
> All tests ended with
> kernel: integer divide fault trap, code=0
> Stopped at	cpu_switchto+0x76:	popl	%ebx
>
> When softraid disabled
> ddb>trace
> cpu_switchto(d073cfa0,a26000,d0a20f18,d0a20ef8,d0202f41) at
> cpu_switchto+0x76
> (null)(d020241,0,d0a20f18,d037cab8,d0854018) at 0
> end(d0746c60,d073cfa0,0,d073cf57,0) at 0xd0a20ef8
> config_rootfound(d073cfa0,0,d0a20fa0,d0360adf,2) at config_rootfound+0x3c
> main(0,0,0,0,0) at main+0x4b8
>
> When acpi disabled/apm disabled/apm & acpi disabled
> ddb>trace
> cpu_switchto(d0851534,d0c17800,d0a20f18,d03763c9,d0c17800) at
> cpu_switchto+0x76
>
> cfdata(d0c17800,0c17800,0,0,d15ca984) at cfdata+0x44e8
> config_attach(0,d084a0a4,0,0,d073cf57) at config_attach+0xfd
> config_rootfound(d073cfa0,0,d0a20fa0,d0360adf,2) at config_rootfound+0x27
> main(0,0,0,0,0) at main+0x4b3

Hi misc@,

I tried this again with 23 Nov 09 snapshot, but it is still crashing
with an integer divide fault trap, as per PR 6052 [1].

The verbose output of dmesg and the ps and trace are included below [2].

The Libretto 70CT works fine with OpenBSD 4.3.  This is not a major
issue, I'm just fond of my Libretto 70CT and want it running the
latest and greatest OS with 4.6 :~)  I am happy to continue debugging
this issue but would be keen to have any pointers in the right
direction.

Thanks,

Fred

[1] http://cvs.openbsd.org/cgi-bin/query-pr-wrapper?full=yes&numbers=6052
[2]The verbose output is shown below:

Script started on Mon Nov 23 23:11:23 2009
x41:fred ~> cu -l /dev/cuaU0 -s19200
Connected
quoted text
>> OpenBSD/i386 BOOT 3.02
boot> bsd -c
booting hd0a:bsd:
/-\|/6774012-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-
\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\
|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|
/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/
-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-
\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\+1054568
[52+352880|/-\|/-\|/-\|/-\|/-\|/+335902-\|/-\|/-\|/-\|/-\|/]=0x81f89c
entry point at 0x200120

[ using 689208 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
	The Regents of the University of California.  All rights reserved.
Copyright (c) 1995-2009 OpenBSD. All rights reserved.  http://www.OpenBSD.org

OpenBSD 4.6-current (GENERIC) #391: Mon Nov 23 05:29:52 MST 2009
    deraadt@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Intel Pentium/MMX ("GenuineIntel" 586-class) 121 MHz
cpu0: FPU,V86,DE,PSE,TSC,MSR,MCE,CX8,MMX
real mem  = 16478208 (15MB)
avail mem = 7233536 (6MB)
User Kernel Config
UKC> verbose
autoconf verbose enabled
UKC> quit
Continuing...
quoted text
>>> probing for mainbus0
>>> mainbus probe returned 1
mainbus0 at root
quoted text
>>> probing for pci*
>>> pci probe returned 0
>>> probing for amdmsr0
>>> amdmsr probe returned 0
>>> probing for isa0
>>> isa probe returned 0
>>> probing for eisa0
>>> eisa probe returned 0
>>> probing for bios0
>>> bios probe returned 1
>>> probing for cpu0
>>> cpu probe returned 0
>>> probing for ioapic*
>>> ioapic probe returned 0
>>> probing for esm0
>>> esm probe returned 0
>>> bios probe won
bios0 at mainbus0: AT/286+ BIOS, date 11/11/97
quoted text
>>> probing for apm0
>>> apm probe returned 1
>>> probing for mpbios0
>>> mpbios probe returned 0
>>> probing for pcibios0
>>> pcibios probe returned 0
>>> probing for acpi0
>>> acpi probe returned 0
>>> apm probe won
apm0 at bios0: Power Management spec V1.2
apm0: battery life expectancy 1%
apm0: AC on, battery charge low, charging
quoted text
>>> probing for mpbios0
>>> mpbios probe returned 0
>>> probing for pcibios0
>>> pcibios probe returned 0
>>> probing for acpi0
>>> acpi probe returned 0
>>> no winning probe
pcibios at bios0 function 0x1a not configured
bios0: ROM list: 0xe4000/0xc000
quoted text
>>> probing for pci*
>>> pci probe returned 0
>>> probing for amdmsr0
>>> amdmsr probe returned 0
>>> probing for isa0
>>> isa probe returned 0
>>> probing for eisa0
>>> eisa probe returned 0
>>> probing for cpu0
>>> cpu probe returned 1
>>> probing for ioapic*
>>> ioapic probe returned 0
>>> probing for esm0
>>> esm probe returned 0
>>> cpu probe won
cpu0 at mainbus0: (uniprocessor)
cpu0: F00F bug workaround installed
quoted text
>>> probing for pci*
>>> pci probe returned 0
>>> probing for amdmsr0
>>> amdmsr probe returned 0
>>> probing for isa0
>>> isa probe returned 1
>>> probing for eisa0
>>> eisa probe returned 0
>>> probing for ioapic*
>>> ioapic probe returned 0
>>> probing for esm0
>>> esm probe returned 0
>>> isa probe won
isa0 at mainbus0
quoted text
>>> probing for isadma0
>>> probing for isadma0 succeeded
isadma0 at isa0
quoted text
>>> probing for ast0
>>> probing for ast0 failed
>>> probing for com0
>>> probing for com0 succeeded
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com0: console
quoted text
>>> probing for com1
>>> probing for com1 succeeded
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
quoted text
>>> probing for com2
>>> probing for com2 failed
>>> probing for cy0
>>> probing for cy0 failed
>>> probing for pckbc0
>>> probing for pckbc0 succeeded
pckbc0 at isa0 port 0x60/5
quoted text
>>> probing for pckbd*
>>> pckbd probe returned 2
>>> probing for pms*
>>> pms probe returned 0
>>> probing for pmsi*
>>> pmsi probe returned 0
>>> pckbd probe won
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
quoted text
>>> probing for wskbd*
>>> wskbd probe returned 1
>>> wskbd probe won
wskbd0 at pckbd0: console keyboard
quoted text
>>> probing for pckbd*
>>> pckbd probe returned 0
>>> probing for pms*
>>> pms probe returned 10
>>> probing for pmsi*
>>> pmsi probe returned 0
>>> pms probe won
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
quoted text
>>> probing for wsmouse*
>>> wsmouse probe returned 1
>>> wsmouse probe won
wsmouse0 at pms0 mux 0
quoted text
>>> probing for vga0
>>> probing for vga0 succeeded
vga0 at isa0 port 0x3b0/48 iomem 0xa0000/131072
quoted text
>>> probing for inteldrm*
>>> inteldrm probe returned 0
>>> probing for radeondrm*
>>> radeondrm probe returned 0
>>> probing for intagp*
>>> intagp probe returned 0
>>> probing for wsdisplay*
>>> wsdisplay probe returned 1
>>> wsdisplay probe won
wsdisplay0 at vga0 mux 1: console (80x25, vt100 emulation), using wskbd0
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
quoted text
>>> probing for pcdisplay0
>>> probing for pcdisplay0 failed
>>> probing for bha0
>>> probing for bha0 failed
>>> probing for aic0
>>> probing for aic0 failed
>>> probing for aha0
>>> probing for aha0 failed
>>> probing for aha1
>>> probing for aha1 failed
>>> probing for uha0
>>> probing for uha0 failed
>>> probing for wdc0
>>> probing for wdc0 succeeded
wdc0 at isa0 port 0x1f0/8 irq 14
quoted text
>>> probing for atapiscsi*
>>> atapiscsi probe returned 0
>>> probing for wd*
>>> wd probe returned 1
>>> wd probe won
wd0 at wdc0 channel 0 drive 0: <IBM-DDLA-21620>
wd0: 16-sector PIO, LBA, 1551MB, 3177216 sectors
wd0(wdc0:0:0): using BIOS timings
quoted text
>>> probing for wdc1
>>> probing for wdc1 failed
>>> probing for lc0
>>> probing for lc0 failed
>>> probing for lc1
>>> probing for lc1 failed
>>> probing for ne0
>>> probing for ne0 failed
>>> probing for ne1
>>> probing for ne1 failed
>>> probing for ne2
>>> probing for ne2 failed
>>> probing for we0
>>> probing for we0 failed
>>> probing for we1
>>> probing for we1 failed
>>> probing for ec0
>>> probing for ec0 failed
>>> probing for ep0
>>> probing for ep0 failed
>>> probing for ep*
>>> probing for ep* finished
>>> probing for ie0
>>> probing for ie0 failed
>>> probing for ex0
>>> probing for ex0 failed
>>> probing for le0
>>> probing for le0 failed
>>> probing for sm0
>>> probing for sm0 failed
>>> probing for mpu*
>>> probing for mpu* finished
>>> probing for sb0
>>> probing for sb0 succeeded
sb0 at isa0 port 0x220/24 irq 5 drq 1: dsp v3.01
quoted text
>>> probing for audio*
>>> audio probe returned 0
>>> probing for midi*
>>> midi probe returned 1
>>> probing for opl*
>>> opl probe returned 0
>>> midi probe won
midi0 at sb0: <SB MIDI UART>
quoted text
>>> probing for audio*
>>> audio probe returned 1
>>> probing for midi*
>>> midi probe returned 0
>>> probing for opl*
>>> opl probe returned 0
>>> audio probe won
audio0 at sb0
quoted text
>>> probing for audio*
>>> audio probe returned 0
>>> probing for midi*
>>> midi probe returned 0
>>> probing for opl*
>>> opl probe returned 3
>>> opl probe won
opl0 at sb0: model OPL3
quoted text
>>> probing for midi*
>>> midi probe returned 1
>>> midi probe won
midi1 at opl0: <SB Yamaha OPL3>
quoted text
>>> probing for pas0
>>> probing for pas0 failed
>>> probing for pss0
>>> probing for pss0 failed
>>> probing for wss0
>>> probing for wss0 succeeded
wss0 at isa0 port 0x530/8 irq 10 drq 0: CS4231 or AD1845 (vers 4)
quoted text
>>> probing for audio*
>>> audio probe returned 1
>>> audio probe won
audio1 at wss0
quoted text
>>> probing for gus0
>>> probing for gus0 failed
>>> probing for pcppi0
>>> probing for pcppi0 succeeded
pcppi0 at isa0 port 0x61
quoted text
>>> probing for midi*
>>> midi probe returned 1
>>> probing for spkr0
>>> spkr probe returned 1
>>> midi probe won
midi2 at pcppi0: <PC speaker>
quoted text
>>> probing for midi*
>>> midi probe returned 0
>>> probing for spkr0
>>> spkr probe returned 1
>>> spkr probe won
spkr0 at pcppi0
quoted text
>>> probing for midi*
>>> midi probe returned 0
>>> no winning probe
>>> probing for lpt0
>>> probing for lpt0 succeeded
lpt0 at isa0 port 0x378/4 irq 7
quoted text
>>> probing for lpt1
>>> probing for lpt1 failed
>>> probing for lpt2
>>> probing for lpt2 failed
>>> probing for wbsio*
>>> probing for wbsio* finished
>>> probing for wbsio*
>>> probing for wbsio* finished
>>> probing for schsio*
>>> probing for schsio* finished
>>> probing for schsio*
>>> probing for schsio* finished
>>> probing for schsio*
>>> probing for schsio* finished
>>> probing for schsio*
>>> probing for schsio* finished
>>> probing for lm0
>>> probing for lm0 failed
>>> probing for fins0
>>> probing for fins0 failed
>>> probing for nsclpcsio*
>>> probing for nsclpcsio* finished
>>> probing for nsclpcsio*
>>> probing for nsclpcsio* finished
>>> probing for gscsio*
>>> probing for gscsio* finished
>>> probing for gscsio*
>>> probing for gscsio* finished
>>> probing for it*
>>> probing for it* finished
>>> probing for it*
>>> probing for it* finished
>>> probing for viasio*
>>> probing for viasio* finished
>>> probing for viasio*
>>> probing for viasio* finished
>>> probing for aps0
>>> probing for aps0 failed
>>> probing for npx0
>>> probing for npx0 succeeded
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
quoted text
>>> probing for lms0
>>> probing for lms0 failed
>>> probing for lms1
>>> probing for lms1 failed
>>> probing for mms0
>>> probing for mms0 failed
>>> probing for mms1
>>> probing for mms1 failed
>>> probing for fdc0
>>> probing for fdc0 failed
>>> probing for isapnp0
>>> probing for isapnp0 failed
>>> probing for pcic0
>>> probing for pcic0 succeeded
pcic0 at isa0 port 0x3e0/2 iomem 0xd0000/65536
pcic0 controller 0: <Intel 82365SL rev 1> has sockets A and B
quoted text
>>> probing for pcmcia*
>>> pcmcia probe returned 1
>>> pcmcia probe won
pcmcia0 at pcic0 controller 0 socket 0
quoted text
>>> probing for ep*
>>> ep probe returned 0
>>> probing for ne*
>>> ne probe returned 0
>>> probing for wi*
>>> wi probe returned 0
>>> probing for an*
>>> an probe returned 0
>>> probing for malo*
>>> malo probe returned 0
>>> probing for com*
>>> com probe returned 0
>>> probing for aic*
>>> aic probe returned 0
>>> probing for wdc*
>>> wdc probe returned 0
>>> probing for sm*
>>> sm probe returned 0
>>> probing for xe*
>>> xe probe returned 1
>>> probing for ray*
>>> ray probe returned 0
>>> xe probe won
xe0 at pcmcia0 function 0 "Xircom, CreditCard 10Base-T, PS-CE2-10"
port 0x340/16, irq 9: address 00:80:c7:42:37:d9
quoted text
>>> probing for pcmcia*
>>> pcmcia probe returned 1
>>> pcmcia probe won
pcmcia1 at pcic0 controller 0 socket 1
pcic0: irq 11, polling enabled
quoted text
>>> probing for pcic1
>>> probing for pcic1 failed
>>> probing for pcic2
>>> probing for pcic2 failed
biomask e145 netmask e345 ttymask fbdf
quoted text
>>> probing for vscsi0
>>> vscsi probe returned 1
vscsi0 at root
quoted text
>>> probing for scsibus*
>>> scsibus probe returned 1
>>> scsibus probe won
scsibus0 at vscsi0: 256 targets
quoted text
>>> probing for softraid0
>>> softraid probe returned 1
softraid0 at root
kernel: integer divide fault trap, code=0
Stopped at      cpu_switchto+0x76:      popl    %ebx
ddb> ps
   PID   PPID   PGRP    UID  S       FLAGS  WAIT          COMMAND
     8      0      0      0  2    0x100200                pfpurge
     7      0      0      0  2    0x100200                pcic0,0,1
     6      0      0      0  2    0x100200                pcic0,0,0
     5      0      0      0  2    0x100200                apm0
     4      0      0      0  2    0x100200                syswq
     3      0      0      0  2    0x100200                idle0
     2      0      0      0  2    0x100200                kmthread
*    1      0      0      0  7           0                swapper
     0     -1      0      0  3     0x80200  wdccmd        swapper
ddb> trace
cpu_switchto(d0852554,d0bdb800,d0a21f18,d0376839,d0bdb800) at
cpu_switchto+0x76

cfdata(d0bdb800,d0bdb800,0,0,d100a984) at cfdata+0x44e8
config_attach(0,d084b0a4,0,0,d073db77) at config_attach+0xfd
config_rootfound(d073dbc0,0,d0a21fa0,d0360f4f,2) at config_rootfound+0x27
main(0,0,0,0,0) at main+0x4b3
ddb> boot poweroff

Attempting to power down...
~
[EOT]
x41:fred ~> exit

Script done on Mon Nov 23 23:30:35 2009