Re: NetBSD/i386 7.0 hangs booting 486

[Felix Deichmann <m4j0rd0m0%gmail.com@localhost>]

2015-11-20 8:48 GMT+01:00 Martin Husemann <martin%duskware.de@localhost>:
>> Can you get into ddb with <ctrl><alt><esc>?
>
> I have a test machine, will try to reproduce it.

I could get into ddb with the key combination and console on com0.
Breaking for traces and then continuing a few times got me this (is
this ominous address 0xbbbbf502 something to investigate further?),
any ideas?


WARNING: couldn't open /var/db/entropy-file
WARNING: 1 module failed to load
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 7.0 (LEGACY.201509250726Z)
total memory = 48764 KB
avail memory = 31068 KB
kern.module.path=/stand/i386/7.0/modules
mainbus0 (root)
ACPI BIOS Error (bug): A valid RSDP was not found (20131218/tbxfroot-223)
acpi_probe: failed to initialize tables
ACPI Error: Could not remove SCI handler (20131218/evmisc-311)
cpu0 at mainbus0: Intel 486-class
isa0 at mainbus0
lpt0 at isa0 port 0x378-0x37b irq 7
com0 at isa0 port 0x3f8-0x3ff irq 4: ns8250 or ns16450, no fifo
com0: console
com1 at isa0 port 0x2f8-0x2ff irq 3: ns8250 or ns16450, no fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0 mux 1
attimer0 at isa0 port 0x40-0x43
wdc0 at isa0 port 0x1f0-0x1f7 irq 14
atabus0 at wdc0 channel 0
vga0 at isa0 port 0x3b0-0x3df iomem 0xa0000-0xbffff
wsdisplay0 at vga0 kbdmux 1
pcppi0 at isa0 port 0x61
midi0 at pcppi0: PC speaker
sysbeep0 at pcppi0
isapnp0 at isa0 port 0x279
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
attimer0: attached to pcppi0
wdc2 at isapnp0 irq 0: unexpected configuration
wss1 at isapnp0 port 0x220/16,0x388/8,0x534/4 irq 5 drq 1,3
wss1: AZT2320 PnP SOUND DEVICE AUDIO: CS4231
audio0 at wss1: full duplex, playback, capture, mmap
opl0 at wss1: model OPL3
midi1 at opl0: WSS Yamaha OPL3
mpu0 at isapnp0 port 0x330/2 irq 9
mpu0: AZT2320 PnP SOUND DEVICE MPU401 MIDI
midi2 at mpu0: Roland MPU-401 MIDI UART
joy0 at isapnp0 port 0x200/8
joy0: AZT2320 PnP SOUND DEVICE GAME PORT
joy0: joystick not connected
isapnp0: <AZT2320 PnP SOUND DEVICE, AZT0004, , MODEM DISABLED> irq 0
not configured
isapnp0: <AZT2320 PnP SOUND DEVICE, AZT0005, , EEPROM> port 0x100/1
not configured
isapnp0: <SK-NET FLASH, SKD8000, , > port 0x240/26 irq 10 drq 3 not configured
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
wd0 at atabus0 drive 0
wd0: <WDC AC22500L>
wd0: 2441 MB, 4960 cyl, 16 head, 63 sec, 512 bytes/sect x 4999680 sectors
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
fatal breakpoint trap in supervisor mode
trap type 1 code 0 eip c029c484 cs c0f50008 eflags 202 cr2 bbbae594
ilevel 8 esp c4539f6c
curlwp 0xc144b560 pid 1 lid 1 lowest kstack 0xc4d9c2c0
Stopped in pid 1.1 (init) at    netbsd:breakpoint+0x4:  popl    %ebp
db{0}> trace
breakpoint(c0f4ffc0,3f8,5,c067a5f5,7,7,c13d9740,c13d96b8,c1436000,4) at netbsd:b
reakpoint+0x4
comintr(c13d9600,c4d9de48,0,0,0,0,0,0,0,0) at netbsd:comintr+0x547
--- switch to interrupt stack ---
Xintr_legacy4() at netbsd:Xintr_legacy4+0xc3
--- interrupt ---
ksiginfo_alloc(c146ad80,c4d9df60,2,c146ad80,0,1,66eda2,4,0,4) at netbsd:ksiginfo
_alloc+0xa0
kpsignal2(c146ad80,c4d9df60,c4d9df14,c065ad63,c13e6b40,c146d000,4,c144b560,0,c4d
9dfa8) at netbsd:kpsignal2+0x44d
trapsignal(c144b560,c4d9df60,c144b560,1,c4d9df40,c13e8f20,c144b560,0,c0659753,c4
d9df88) at netbsd:trapsignal+0x96
trap() at netbsd:trap+0x4f1
--- trap (number 0) ---
bbbbf502:
db{0}> show reg
ds          10
es          10
fs          120030
gs          80000010
edi         c1435000
esi         1
ebp         c4539f2c
ebx         c13d9600
edx         100
ecx         0
eax         7f
eip         c029c484    breakpoint+0x4
cs          8
eflags      202
esp         c4539f2c
ss          10
netbsd:breakpoint+0x4:  popl    %ebp
db{0}> cont
fatal breakpoint trap in supervisor mode
trap type 1 code 0 eip c029c484 cs c0f50008 eflags 202 cr2 bbbae594
ilevel 8 esp c4539f6c
curlwp 0xc144b560 pid 1 lid 1 lowest kstack 0xc4d9c2c0
Stopped in pid 1.1 (init) at    netbsd:breakpoint+0x4:  popl    %ebp
db{0}> trace
breakpoint(c0f4ffc0,3f8,5,c067a606,7,7,c13d9740,c13d96b8,c1436000,4) at netbsd:b
reakpoint+0x4
comintr(c13d9600,c4d9de40,0,0,0,0,0,0,0,0) at netbsd:comintr+0x547
--- switch to interrupt stack ---
Xintr_legacy4() at netbsd:Xintr_legacy4+0xc3
--- interrupt ---
mutex_spin_enter(4,1,2,c146ad80,0,1,66eda2,4,0,4) at netbsd:mutex_spin_enter+0x3
1
kpsignal2(c146ad80,c4d9df60,c4d9df14,c065ad63,c13e6b40,c146d000,4,c144b560,0,c4d
9dfa8) at netbsd:kpsignal2+0x334
trapsignal(c144b560,c4d9df60,c144b560,1,c4d9df40,c13e8f20,c144b560,0,c0659753,7)
 at netbsd:trapsignal+0x96
trap() at netbsd:trap+0x4f1
--- trap (number 0) ---
bbbbf502:
db{0}> show reg
ds          10
es          10
fs          120030
gs          80000010
edi         c1435000
esi         1
ebp         c4539f2c
ebx         c13d9600
edx         100
ecx         0
eax         7f
eip         c029c484    breakpoint+0x4
cs          8
eflags      202
esp         c4539f2c
ss          10
netbsd:breakpoint+0x4:  popl    %ebp
db{0}> cont
fatal breakpoint trap in supervisor mode
trap type 1 code 0 eip c029c484 cs c0f50008 eflags 202 cr2 bbbae594
ilevel 8 esp c4539f6c
curlwp 0xc144b560 pid 1 lid 1 lowest kstack 0xc4d9c2c0
Stopped in pid 1.1 (init) at    netbsd:breakpoint+0x4:  popl    %ebp
db{0}> trace
breakpoint(c0f4ffc0,3f8,5,c067a5f5,7,7,c13d9740,c13d96b8,c1436000,4) at netbsd:b
reakpoint+0x4
comintr(c13d9600,c4d9df64,0,0,0,0,0,0,0,0) at netbsd:comintr+0x547
--- switch to interrupt stack ---
Xintr_legacy4() at netbsd:Xintr_legacy4+0xc3
--- interrupt ---
netbsd:alltraps+0x4a:
db{0}> show reg
ds          10
es          10
fs          120030
gs          80000010
edi         c1435000
esi         1
ebp         c4539f2c
ebx         c13d9600
edx         100
ecx         0
eax         7f
eip         c029c484    breakpoint+0x4
cs          8
eflags      202
esp         c4539f2c
ss          10
netbsd:breakpoint+0x4:  popl    %ebp
db{0}> cont
fatal breakpoint trap in supervisor mode
trap type 1 code 0 eip c029c484 cs c0f50008 eflags 202 cr2 bbbae594
ilevel 8 esp c4539f6c
curlwp 0xc144b560 pid 1 lid 1 lowest kstack 0xc4d9c2c0
Stopped in pid 1.1 (init) at    netbsd:breakpoint+0x4:  popl    %ebp
db{0}> trace
breakpoint(c0f4ffc0,3f8,5,c067a606,7,7,c13d9740,c13d96b8,c1436000,4) at netbsd:b
reakpoint+0x4
comintr(c13d9600,c4d9de60,0,0,0,0,0,0,0,0) at netbsd:comintr+0x547
--- switch to interrupt stack ---
Xintr_legacy4() at netbsd:Xintr_legacy4+0xc3
--- interrupt ---
siggetinfo(c146ad80,4,c4d9def4,c066ec73,c144b70c,0,4,0,c146ad80,0) at netbsd:sig
getinfo+0xe3
sigget(c144b70c,0,4,0,c146ad80,0,0,c144b70c,c144b560,c146ad80) at netbsd:sigget+
0x6d
issignal(c144b560,c146d000,c146ada4,c144b560,0,c4d9dfa8,c4d9df9c,c096b509,c144b5
60,c4d9df60) at netbsd:issignal+0x18c
lwp_userret(c144b560,c4d9df60,984226fe,4f887870,c13e6d40,1,c144b560,c4d9df5c,c06
71e63,bbbae594) at netbsd:lwp_userret+0x152
trap() at netbsd:trap+0xaaa
--- trap (number 0) ---
bbbbf502:
db{0}> show reg
ds          10
es          10
fs          120030
gs          80000010
edi         c1435000
esi         1
ebp         c4539f2c
ebx         c13d9600
edx         100
ecx         0
eax         7f
eip         c029c484    breakpoint+0x4
cs          8
eflags      202
esp         c4539f2c
ss          10
netbsd:breakpoint+0x4:  popl    %ebp
db{0}> cont