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Date:      Mon, 24 Oct 2005 08:05:06 +0200
From:      Thierry Herbelot <thierry@herbelot.com>
To:        freebsd-current@freebsd.org
Subject:   malloc-induced panic while probing devices
Message-ID:  <200510240805.08455.thierry@herbelot.com>

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Hello,

on a recent -current, I get a panic at startup.
I get the panic only with the vidconsole (boot is OK with the serial 
comconsole only, boot crashes with both serial and internal consoles).

I get the panic with a normal and a verbose boot. I include a trace of a 
verbose boot with both the internal vidconsole and a serial console.

Two full verbose dmesg's are accessible at 
http://therbelot.free.fr/Install_FreeBSD/malloc_panic/
dmesg.boot.verbose.173 is for the previous kernel and dmesg.boot.verbose.174 
is for the kernel which crashes with the vidconsole

recent changes in the kernel :
%diff kernel.old.ident kernel.ident
322,323c322,323
< src/sys/kern/kern_exec.c,v 1.280 2005/10/14 12:43:46 davidxu Exp $
< src/sys/kern/kern_exit.c,v 1.266 2005/10/14 12:43:46 davidxu Exp $
---
> src/sys/kern/kern_exec.c,v 1.282 2005/10/23 12:19:08 davidxu Exp $
> src/sys/kern/kern_exit.c,v 1.268 2005/10/23 12:19:08 davidxu Exp $
349c349
< src/sys/kern/kern_sig.c,v 1.307 2005/10/14 12:43:46 davidxu Exp $
---
> src/sys/kern/kern_sig.c,v 1.308 2005/10/23 04:12:26 davidxu Exp $
357,358c357,358
< src/sys/kern/kern_thread.c,v 1.218 2005/10/14 12:43:46 davidxu Exp $
< src/sys/kern/kern_time.c,v 1.117 2005/10/15 02:54:18 ps Exp $
---
> src/sys/kern/kern_thread.c,v 1.220 2005/10/23 12:19:08 davidxu Exp $
> src/sys/kern/kern_time.c,v 1.119 2005/10/23 12:19:08 davidxu Exp $

recent changes in acpi :
%diff acpi.old.ident acpi.ident
1,2c1,2
< src/sys/dev/acpica/acpi.c,v 1.215 2005/09/11 18:39:01 obrien Exp $
---
> src/sys/dev/acpica/acpi.c,v 1.216 2005/10/23 00:28:39 njl Exp $
17c17
< src/sys/dev/acpica/acpi_battery.c,v 1.19 2005/09/11 18:39:01 obrien Exp $
---
> src/sys/dev/acpica/acpi_battery.c,v 1.20 2005/10/23 00:16:41 njl Exp $
22a23
> src/sys/dev/acpica/acpi_smbat.c,v 1.1 2005/10/23 00:20:13 njl Exp $


/boot/kernel/acpi.ko text=0x43e30 data=0x2260+0x10f0 
syms=[0x4+0x7b20+0x4+0xa712]
GDB: no debug ports present
KDB: debugger backends: ddb
KDB: current backend: ddb
SMAP type=01 base=0000000000000000 len=000000000009f800
SMAP type=02 base=000000000009f800 len=0000000000000800
SMAP type=02 base=00000000000eac00 len=0000000000015400
SMAP type=01 base=0000000000100000 len=000000000bef0000
SMAP type=03 base=000000000bff0000 len=000000000000f800
SMAP type=04 base=000000000bfff800 len=0000000000000800
SMAP type=02 base=00000000fff80000 len=0000000000080000
Copyright (c) 1992-2005 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 7.0-CURRENT #174: Mon Oct 24 00:35:54 CEST 2005
    herbelot@portable.herbelot.nom:/files5/obj/usr/src/sys/GENERIC
WARNING: WITNESS option enabled, expect reduced performance.
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0b32000.
Preloaded elf module "/boot/kernel/snd_ds1.ko" at 0xc0b32160.
Preloaded elf module "/boot/kernel/sound.ko" at 0xc0b3220c.
Preloaded elf module "/boot/kernel/cpufreq.ko" at 0xc0b322b8.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc0b32364.
Calibrating clock(s) ... i8254 clock: 1193124 Hz
CLK_USE_I8254_CALIBRATION not specified - using default frequency
Timecounter "i8254" frequency 1193182 Hz quality 0
Calibrating TSC clock ... TSC clock: 171097267 Hz
CPU: Intel Pentium III (171.10-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x683  Stepping = 3
  
Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
real memory  = 201261056 (191 MB)
Physical memory chunk(s):
0x0000000000001000 - 0x000000000009efff, 647168 bytes (158 pages)
0x0000000000100000 - 0x00000000003fffff, 3145728 bytes (768 pages)
0x0000000000c28000 - 0x000000000bc57fff, 184745984 bytes (45104 pages)
avail memory = 187232256 (178 MB)
bios32: Found BIOS32 Service Directory header at 0xc00f70e0
bios32: Entry = 0xfd880 (c00fd880)  Rev = 0  Len = 1
pcibios: PCI BIOS entry at 0xfd880+0x11e
pnpbios: Found PnP BIOS data at 0xc00f7110
pnpbios: Entry = f0000:b326  Rev = 1.0
pnpbios: Event flag at 4b4
Other BIOS signatures found:
wlan: <802.11 Link Layer>
random: <entropy source, Software, Yarrow>
nfslock: pseudo-device
io: <I/O>
mem: <memory>
Pentium Pro MTRR support enabled
null: <null device, zero device>
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <SONY K1> on motherboard
acpi0: [MPSAFE]
pci_open(1):    mode 1 addr port (0x0cf8) is 0x80003904
pci_open(1a):   mode1res=0x80000000 (0x80000000)
pci_cfgcheck:   device 0 [class=060000] [hdr=00] is there (id=71908086)
pcibios: BIOS version 2.10
Found $PIR table, 8 entries at 0xc00fdf40
PCI-Only Interrupts: none
Location  Bus Device Pin  Link  IRQs
embedded    0    1    A   0x60  9
embedded    0    1    B   0x61  9
embedded    0    1    C   0x62  9
embedded    0    1    D   0x63  9
embedded    0    7    D   0x63  9
embedded    0    8    A   0x63  9
embedded    0    9    A   0x62  9
embedded    0   10    A   0x61  9
embedded    0   12    A   0x60  9
embedded    0   12    B   0x61  9
embedded    0   16    A   0x62  9
embedded    0   13    A   0x61  9
acpi_bus_number: root bus has no _BBN, assuming 0
AcpiOsDerivePciId: bus 0 dev 7 func 2
acpi_bus_number: root bus has no _BBN, assuming 0
AcpiOsDerivePciId: bus 0 dev 12 func 0
acpi_bus_number: root bus has no _BBN, assuming 0
AcpiOsDerivePciId: bus 0 dev 12 func 1
acpi_bus_number: root bus has no _BBN, assuming 0
AcpiOsDerivePciId: bus 0 dev 7 func 0
acpi_bus_number: root bus has no _BBN, assuming 0
AcpiOsDerivePciId: bus 0 dev 0 func 0
acpi_ec0: <Embedded Controller: GPE 0x9> port 0x62,0x66 on acpi0
acpi_bus_number: root bus has no _BBN, assuming 0
AcpiOsDerivePciId: bus 0 dev 7 func 3
pci_link0: <ACPI PCI Link LNKA> irq 9 on acpi0
pci_link0: Links after initial probe:
Index  IRQ  Rtd  Ref  IRQs
    0    9   N     0  9
pci_link0: Links after initial validation:
Index  IRQ  Rtd  Ref  IRQs
    0    9   N     0  9
pci_link0: Links after disable:
Index  IRQ  Rtd  Ref  IRQs
    0  255   N     0  9
pci_link1: <ACPI PCI Link LNKB> on acpi0
pci_link1: Links after initial probe:
Index  IRQ  Rtd  Ref  IRQs
    0  255   N     0  9
pci_link1: Links after initial validation:
Index  IRQ  Rtd  Ref  IRQs
    0  255   N     0  9
pci_link1: Links after disable:
Index  IRQ  Rtd  Ref  IRQs
    0  255   N     0  9
pci_link2: <ACPI PCI Link LNKC> on acpi0
pci_link2: Links after initial probe:
Index  IRQ  Rtd  Ref  IRQs
    0  255   N     0  9
pci_link2: Links after initial validation:
Index  IRQ  Rtd  Ref  IRQs
    0  255   N     0  9
pci_link2: Links after disable:
Index  IRQ  Rtd  Ref  IRQs
    0  255   N     0  9
pci_link3: <ACPI PCI Link LNKD> on acpi0
pci_link3: Links after initial probe:
Index  IRQ  Rtd  Ref  IRQs
    0  255   N     0  9
pci_link3: Links after initial validation:
Index  IRQ  Rtd  Ref  IRQs
    0  255   N     0  9
pci_link3: Links after disable:
Index  IRQ  Rtd  Ref  IRQs
    0  255   N     0  9
ACPI timer: 0/88 0/88 0/87 0/87 0/87 0/88 0/88 0/86 0/88 0/88 -> 0
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x8008-0x800b on acpi0
cpu0: <ACPI CPU> on acpi0
acpi_throttle0: <ACPI CPU Throttling> on cpu0
acpi_throttle0: P_CNT from P_BLK 0x8010
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pci0: physical bus=0
found-> vendor=0x8086, dev=0x7190, revid=0x03
        bus=0, slot=0, func=0
        class=06-00-00, hdrtype=0x00, mfdev=0
        cmdreg=0x0106, statreg=0x2210, cachelnsz=0 (dwords)
        lattimer=0x40 (1920 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
        map[10]: type 3, range 32, base 40000000, size 24, enabled
found-> vendor=0x8086, dev=0x7191, revid=0x03
        bus=0, slot=1, func=0
        class=06-04-00, hdrtype=0x01, mfdev=0
        cmdreg=0x001f, statreg=0x0220, cachelnsz=0 (dwords)
        lattimer=0x80 (3840 ns), mingnt=0x8c (35000 ns), maxlat=0x00 (0 ns)
found-> vendor=0x8086, dev=0x7110, revid=0x02
        bus=0, slot=7, func=0
        class=06-01-00, hdrtype=0x00, mfdev=1
        cmdreg=0x000f, statreg=0x0280, cachelnsz=0 (dwords)
        lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
found-> vendor=0x8086, dev=0x7111, revid=0x01
        bus=0, slot=7, func=1
        class=01-01-80, hdrtype=0x00, mfdev=0
        cmdreg=0x0005, statreg=0x0280, cachelnsz=0 (dwords)
        lattimer=0x40 (1920 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
        map[20]: type 4, range 32, base 0000fcf0, size  4, enabled
found-> vendor=0x8086, dev=0x7112, revid=0x01
        bus=0, slot=7, func=2
        class=0c-03-00, hdrtype=0x00, mfdev=0
        cmdreg=0x0000, statreg=0x0280, cachelnsz=0 (dwords)
        lattimer=0x40 (1920 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
        intpin=d, irq=255
        map[20]: type 4, range 32, base 0000fcc0, size  5, port disabled
found-> vendor=0x8086, dev=0x7113, revid=0x03
        bus=0, slot=7, func=3
        class=06-80-00, hdrtype=0x00, mfdev=0
        cmdreg=0x0003, statreg=0x0280, cachelnsz=0 (dwords)
        lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
        map[90]: type 4, range 32, base 00001040, size  4, enabled
found-> vendor=0x104d, dev=0x8039, revid=0x02
        bus=0, slot=8, func=0
        class=0c-00-10, hdrtype=0x00, mfdev=0
        cmdreg=0x0000, statreg=0x0210, cachelnsz=8 (dwords)
        lattimer=0x40 (1920 ns), mingnt=0x04 (1000 ns), maxlat=0x04 (1000 ns)
        intpin=a, irq=255
        powerspec 1  supports D0 D3  current D0
        map[10]: type 1, range 32, base fedff000, size 11, memory disabled
        map[14]: type 1, range 32, base fedffc00, size  9, enabled
found-> vendor=0x1073, dev=0x0010, revid=0x02
        bus=0, slot=9, func=0
        class=04-01-00, hdrtype=0x00, mfdev=0
        cmdreg=0x0006, statreg=0x0210, cachelnsz=0 (dwords)
        lattimer=0x40 (1920 ns), mingnt=0x05 (1250 ns), maxlat=0x19 (6250 ns)
        intpin=a, irq=9
        powerspec 1  supports D0 D2 D3  current D0
        map[10]: type 1, range 32, base fedf0000, size 15, enabled
        map[14]: type 4, range 32, base 0000fc40, size  6, port disabled
        map[18]: type 4, range 32, base 0000fcec, size  2, enabled
pcib0: matched entry for 0.9.INTA (src \_SB_.LNKC:0)
pci_link2: Picked IRQ 9 with weight 0
pcib0: slot 9 INTA routed to irq 9 via \_SB_.LNKC
found-> vendor=0x14f1, dev=0x2443, revid=0x01
        bus=0, slot=10, func=0
        class=07-80-00, hdrtype=0x00, mfdev=0
        cmdreg=0x0000, statreg=0x0290, cachelnsz=0 (dwords)
        lattimer=0x40 (1920 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
        intpin=a, irq=9
        powerspec 2  supports D0 D3  current D0
        map[10]: type 1, range 32, base fede0000, size 16, memory disabled
        map[14]: type 4, range 32, base 0000fce0, size  3, port disabled
pcib0: matched entry for 0.10.INTA (src \_SB_.LNKB:0)
pci_link1: Picked IRQ 9 with weight 3
pcib0: slot 10 INTA routed to irq 9 via \_SB_.LNKB
found-> vendor=0x1180, dev=0x0478, revid=0x80
        bus=0, slot=12, func=0
        class=06-07-00, hdrtype=0x02, mfdev=1
        cmdreg=0x0007, statreg=0x0210, cachelnsz=0 (dwords)
        lattimer=0x20 (960 ns), mingnt=0x80 (32000 ns), maxlat=0x00 (0 ns)
        intpin=a, irq=255
        powerspec 1  supports D0 D1 D2 D3  current D0
        map[10]: type 1, range 32, base 00000000, size 12, enabled
found-> vendor=0x1180, dev=0x0478, revid=0x80
        bus=0, slot=12, func=1
        class=06-07-00, hdrtype=0x02, mfdev=1
        cmdreg=0x0007, statreg=0x0210, cachelnsz=0 (dwords)
        lattimer=0x20 (960 ns), mingnt=0x80 (32000 ns), maxlat=0x00 (0 ns)
        intpin=b, irq=255
        powerspec 1  supports D0 D1 D2 D3  current D0
        map[10]: type 1, range 32, base 00000000, size 12, enabled
agp0: <Intel 82443BX (440 BX) host to PCI bridge> mem 0x40000000-0x40ffffff at 
device 0.0 on pci0
agp0: Reserved 0x1000000 bytes for rid 0x10 type 3 at 0x40000000
agp0: allocating GATT for aperture of size 16M
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pcib1:   secondary bus     1
pcib1:   subordinate bus   1
pcib1:   I/O decode        0xf000-0xfff
pcib1:   memory decode     0xfe800000-0xfecfffff
pcib1:   prefetched decode 0xfd000000-0xfdffffff
pcib1: could not get PCI interrupt routing table for \_SB_.PCI0.VID0 - 
AE_NOT_FOUND
pci1: <ACPI PCI bus> on pcib1
pci1: physical bus=1
found-> vendor=0x10c8, dev=0x0025, revid=0x30
        bus=1, slot=0, func=0
        class=03-00-00, hdrtype=0x00, mfdev=0
        cmdreg=0x0207, statreg=0x0290, cachelnsz=0 (dwords)
        lattimer=0x80 (3840 ns), mingnt=0x10 (4000 ns), maxlat=0xff (63750 ns)
        intpin=a, irq=9
        powerspec 1  supports D0 D1 D2 D3  current D0
        map[10]: type 3, range 32, base fd000000, size 24, enabled
pcib1: (null) requested memory range 0xfd000000-0xfdffffff: good
        map[14]: type 1, range 32, base fe800000, size 22, enabled
pcib1: (null) requested memory range 0xfe800000-0xfebfffff: good
        map[18]: type 1, range 32, base fec00000, size 20, enabled
pcib1: (null) requested memory range 0xfec00000-0xfecfffff: good
pcib0: matched entry for 0.1.INTA (src \_SB_.LNKA:0)
pcib0: slot 1 INTA routed to irq 9 via \_SB_.LNKA
pcib1: slot 0 INTA is routed to irq 9
pci1: <display, VGA> at device 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 UDMA33 controller> port 
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xfcf0-0xfcff at device 7.1 on pci0
atapci0: Reserved 0x10 bytes for rid 0x20 type 4 at 0xfcf0
ata0: <ATA channel 0> on atapci0
atapci0: Reserved 0x8 bytes for rid 0x10 type 4 at 0x1f0
atapci0: Reserved 0x1 bytes for rid 0x14 type 4 at 0x3f6
ata0: reset tp1 mask=03 ostat0=50 ostat1=00
ata0: stat0=0x80 err=0x80 lsb=0x80 msb=0x80
ata0: stat0=0x80 err=0x80 lsb=0x80 msb=0x80
ata0: stat0=0x80 err=0x80 lsb=0x80 msb=0x80
ata0: stat0=0x80 err=0x80 lsb=0x80 msb=0x80
ata0: stat0=0x50 err=0x01 lsb=0x00 msb=0x00
ata0: stat1=0x00 err=0x01 lsb=0x00 msb=0x00
ata0: reset tp2 stat0=50 stat1=00 devices=0x1<ATA_MASTER>
ata0: [MPSAFE]
ata1: <ATA channel 1> on atapci0
atapci0: Reserved 0x8 bytes for rid 0x18 type 4 at 0x170
atapci0: Reserved 0x1 bytes for rid 0x1c type 4 at 0x376
ata1: reset tp1 mask=03 ostat0=50 ostat1=00
ata1: stat0=0x00 err=0x01 lsb=0x14 msb=0xeb
ata1: stat1=0x00 err=0x04 lsb=0x14 msb=0xeb
ata1: reset tp2 stat0=00 stat1=00 devices=0x4<ATAPI_MASTER>
ata1: [MPSAFE]
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0xfcc0-0xfcdf at device 
7.2 on pci0
uhci0: Reserved 0x20 bytes for rid 0x20 type 4 at 0xfcc0
pcib0: matched entry for 0.7.INTD (src \_SB_.LNKD:0)
pci_link3: Picked IRQ 9 with weight 9
pcib0: slot 7 INTD routed to irq 9 via \_SB_.LNKD
uhci0: [GIANT-LOCKED]
usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
pci0: <bridge> at device 7.3 (no driver attached)
fwohci0: <Sony i.LINK (CXD3222)> mem 
0xfedff000-0xfedff7ff,0xfedffc00-0xfedffdff at device 8.0 on pci0
fwohci0: Reserved 0x800 bytes for rid 0x10 type 3 at 0xfedff000
pcib0: matched entry for 0.8.INTA (src \_SB_.LNKD:0)
pcib0: slot 8 INTA routed to irq 9 via \_SB_.LNKD
fwohci0: [MPSAFE]
fwohci0: OHCI version 1.0 (ROM=1)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 08:00:46:03:00:9d:41:5e
fwohci0: Phy 1394a available S400, 3 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
fwe0: <Ethernet over FireWire> on firewire0
if_fwe0: Fake Ethernet address: 0a:00:46:9d:41:5e
fwe0: bpf attached
fwe0: Ethernet address: 0a:00:46:9d:41:5e
fwe0: if_start running deferred for Giant
sbp0: <SBP-2/SCSI over FireWire> on firewire0
fwohci0: Initiate bus reset
fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode
fw_sidrcv: invalid self-id packet
firewire0: 1 nodes, maxhop <= 0, Not found IRM capable node
Memory modified after free 0xc1513000(2044) val=807f8856 @ 0xc1513004
panic: Most recently used by bus-sc

cpuid = 0
KDB: enter: panic
[thread pid 0 tid 0 ]
Stopped at      kdb_enter+0x2b: nop     
db>  where
Tracing pid 0 tid 0 td 0xc092fc20
kdb_enter(c086889e) at kdb_enter+0x2b
panic(c088329f,c086a5b7,c0883270,c1513000,7fc) at panic+0x127
mtrash_ctor(c1513000,800,0,101) at mtrash_ctor+0x4d
uma_zalloc_arg(c104a960,0,101) at uma_zalloc_arg+0x10f
malloc(4d4,c08d1680,101,6,c14a94d0) at malloc+0xb2
device_set_driver(c1548d80,c08a6d08) at device_set_driver+0x86
device_probe_child(c1548500,c1548d80,c1548880,c1548d80,c1548500) at 
device_probe_child+0x98
device_probe_and_attach(c1548d80) at device_probe_and_attach+0x7d
bus_generic_attach(c1548500,6,c152a7c0,1,c0b03ba8) at bus_generic_attach+0x16
acpi_pci_attach(c1548500) at acpi_pci_attach+0xd0
device_attach(c1548500,c1514d60,c1548500,0,c14cf180) at device_attach+0x58
device_probe_and_attach(c1548500) at device_probe_and_attach+0xe0
bus_generic_attach(c14cf180,c14cf180,c14cf180,c152a7c0,c1531da0) at 
bus_generic_attach+0x16
acpi_pcib_attach(c14cf180,c1531db4,0,c0c20c58,c0658af0) at 
acpi_pcib_attach+0x130
acpi_pcib_acpi_attach(c14cf180) at acpi_pcib_acpi_attach+0xcf
device_attach(c14cf180,c0c20ca0,c14cf180,c1549000,c14cf300) at 
device_attach+0x58
device_probe_and_attach(c14cf180) at device_probe_and_attach+0xe0
bus_generic_attach(c14cf300,fff7ffff,fff7f600,c1530a28,3) at 
bus_generic_attach+0x16
acpi_attach(c14cf300) at acpi_attach+0x631
device_attach(c14cf300,0,c14cf300,c14cfd00,0) at device_attach+0x58
device_probe_and_attach(c14cf300) at device_probe_and_attach+0xe0
bus_generic_attach(c14cfd00,c14cfd00,c14cfd00,c0c20d40,c0654e44) at 
bus_generic_attach+0x16
nexus_attach(c14cfd00) at nexus_attach+0x13
device_attach(c14cfd00,c0937ae8,c14cfd00,c0909890,c28000) at 
device_attach+0x58
device_probe_and_attach(c14cfd00) at device_probe_and_attach+0xe0
root_bus_configure(c0c20d88,c06176ce,0,c1ec00,c1e000) at 
root_bus_configure+0x16
configure(0,c1ec00,c1e000,0,c0446055) at configure+0x9
mi_startup() at mi_startup+0x96
begin() at begin+0x2c
db> ps
  pid   proc     uid  ppid  pgrp  flag   stat  wmesg    wchan  cmd
   36 c1522224    0     0     0 0000204 [RUNQ] usbtask
   35 c1522448    0     0     0 0000204 [RUNQ] usb0
    9 c152266c    0     0     0 0000204 [RUNQ] thread taskq
   34 c1522890    0     0     0 0000204 [IWAIT] swi6:+
    8 c1522ab4    0     0     0 0000204 [RUNQ] acpi_task2
    7 c1522cd8    0     0     0 0000204 [RUNQ] acpi_task1
    6 c1524000    0     0     0 0000204 [RUNQ] acpi_task0
   33 c1524224    0     0     0 0000204 [IWAIT] swi6: task queue
    5 c1524448    0     0     0 0000204 [RUNQ] kqueue taskq
   32 c145a66c    0     0     0 0000204 [IWAIT] swi2: cambio
   31 c145a890    0     0     0 0000204 [IWAIT] swi5:+
   30 c145aab4    0     0     0 0000204 [RUNQ] yarrow
    4 c145acd8    0     0     0 0000204 [RUNQ] g_down
    3 c1464000    0     0     0 0000204 [RUNQ] g_up
    2 c1464224    0     0     0 0000204 [RUNQ] g_event
   29 c1464448    0     0     0 0000204 [IWAIT] swi3: vm
   28 c146466c    0     0     0 000020c [IWAIT] swi4: clock
   27 c1464890    0     0     0 0000204 [IWAIT] swi1: net
   26 c1464ab4    0     0     0 0000204 [RUNQ] irq15: ata1
   25 c1443224    0     0     0 0000204 [RUNQ] irq14: ata0
   24 c1443448    0     0     0 0000204 [IWAIT] irq13:
   23 c144366c    0     0     0 0000204 [IWAIT] irq12:
   22 c1443890    0     0     0 0000204 [IWAIT] irq11:
   21 c1443ab4    0     0     0 0000204 [IWAIT] irq10:
   20 c1443cd8    0     0     0 0000204 [RUNQ] irq9: fwohci0 uhci+
   19 c145a000    0     0     0 0000204 [IWAIT] irq8:
   18 c145a224    0     0     0 0000204 [IWAIT] irq7:
   17 c145a448    0     0     0 0000204 [IWAIT] irq6:
   16 c143e000    0     0     0 0000204 [IWAIT] irq5:
   15 c143e224    0     0     0 0000204 [IWAIT] irq4:
   14 c143e448    0     0     0 0000204 [IWAIT] irq3:
   13 c143e66c    0     0     0 0000204 [IWAIT] irq1:
   12 c143e890    0     0     0 0000204 [IWAIT] irq0:
   11 c143eab4    0     0     0 000020c [Can run] idle: cpu0
    1 c143ecd8    0     0     0 0000200 [INACTIVE] swapper
   10 c1443000    0     0     0 0000204 [RUNQ] ktrace
    0 c092f9e0    0     0     0 0000200 [CPU 0] swapper



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