kern/72636: Detaching USB-Memorystick without prior umount can
cause System panic
Karsten Gorling
kgorling at physik.TU-Berlin.DE
Wed Oct 13 05:40:23 PDT 2004
>Number: 72636
>Category: kern
>Synopsis: Detaching USB-Memorystick without prior umount can cause System panic
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Oct 13 12:40:22 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator: Charlie &
>Release: FreeBSD 5.3-BETA7 i386
>Organization:
Admins of PC-Pool Physik
>Environment:
System: FreeBSD cip5203 5.3-BETA7 FreeBSD 5.3-BETA7 #2: Wed Oct 13 11:54:29 CEST 2004 master at cip5203:/scratch/obj/scratch/src/sys/TEST i386
MD Athlon(TM) XP 1800+
VT8366/A,VT8367 Apollo KT266/A,KT333 CPU to PCI Bridge
VT82xxxxx UHCI USB 1.1 Controller (All VIA Chipsets)
VT6202 USB 2.0 Enhanced Host Controller
>Description:
Detaching an USB-Memorystick without umounting it results in a
"device not configured"-Error, when you try to access the mount-point
or try to umount without force.
Using "umount -f" causes most of the times a System-Panic, the Kernel-debugger
fires up, but unfortunately no memorydump is done
If "umount -f" did not cause a panic, the entire USB-Subsystem is in an
unusable state. Memorydevices get not configured. After several attachs und
dettachs of USB-Devices (two or three) the system panics and jumps into
debugging mode (crashdump is done, so crashdump.1 is the dump of this
situation)
>How-To-Repeat:
Attach USB-Memorystick and mount it. Dettach it first, then try
"umount -f <mountpoint>"
>Fix:
--- dmesg.boot begins here ---
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
orm0: <ISA Option ROMs> at iomem 0xcc000-0xcd7ff,0xc0000-0xcbfff on isa0
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 1152623477 Hz quality 800
Timecounters tick every 10.000 msec
ad0: 38166MB <ST340810A/3.99> [77545/16/63] at ata0-master UDMA100
acd0: CDROM <GCR-8521B/1.00> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s2a
umass0: Sony USB Storage Media, rev 2.00/2.00, addr 2
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <Sony Storage Media 3.04> Removable Direct Access SCSI-0 device
da0: 1.000MB/s transfers
da0: Attempt to query device size failed: UNIT ATTENTION, Medium not present
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:28,0
(da0:umass-sim0:0:0:0): Not ready to ready change, medium may have changed
(da0:umass-sim0:0:0:0): Retries Exhausted
Opened disk da0 -> 6
umass0: at uhub0 port 2 (addr 2) disconnected
(da0:umass-sim0:0:0:0): lost device
umass0: detached
(da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x39, scsi status == 0x0
(da0:umass-sim0:0:0:0): removing device entry
umass0: Sony USB Storage Media, rev 2.00/2.00, addr 2
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <Sony Storage Media 3.04> Removable Direct Access SCSI-0 device
da0: 1.000MB/s transfers
da0: Attempt to query device size failed: UNIT ATTENTION, Medium not present
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retries Exhausted
Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:28,0
(da0:umass-sim0:0:0:0): Not ready to ready change, medium may have changed
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
umass0: at uhub0 port 1 (addr 2) disconnected
(da0:umass-sim0:0:0:0): lost device
(da0:umass-sim0:0:0:0): removing device entry
sysctl_unregister_oid: failed to unregister sysctl
umass0: detached
umass0: Sony USB Storage Media, rev 2.00/2.00, addr 2
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <Sony Storage Media 3.04> Removable Direct Access SCSI-0 device
da0: 1.000MB/s transfers
da0: Attempt to query device size failed: UNIT ATTENTION, Medium not present
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retries Exhausted
Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retries Exhausted
Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): UNIT ATTENTION asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Retries Exhausted
Opened disk da0 -> 6
umass0: at uhub0 port 2 (addr 2) disconnected
(da0:umass-sim0:0:0:0): lost device
(da0:umass-sim0:0:0:0): removing device entry
umass0: detached
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x7f399586
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0522904
stack pointer = 0x10:0xcbf36c44
frame pointer = 0x10:0xcbf36c44
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 45 (usb0)
panic: from debugger
Uptime: 7m23s
Dumping 255 MB
16 32 48 64 80 96 112 128 144 160 176 192 208 224 240Copyright (c) 1992-2004 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 5.3-BETA7 #2: Wed Oct 13 11:54:29 CEST 2004
master at cip5203:/scratch/obj/scratch/src/sys/TEST
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Athlon(TM) XP 1800+ (1152.62-MHz 686-class CPU)
Origin = "AuthenticAMD" Id = 0x662 Stepping = 2
Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE>
AMD Features=0xc0480000<MP,AMIE,DSP,3DNow!>
real memory = 268419072 (255 MB)
avail memory = 248819712 (237 MB)
ACPI APIC Table: <ASUS A7V333 >
ioapic0: Changing APIC ID to 2
ioapic0 <Version 0.2> irqs 0-23 on motherboard
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <ASUS A7V333> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <32-bit timer at 3.579545MHz> port 0xe408-0xe40b on acpi0
cpu0: <ACPI CPU> on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <VIA Generic host to PCI bridge> mem 0xe0000000-0xe3ffffff at device 0.0 on pci0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
nvidia0: <GeForce2 MX/MX 400> mem 0xd8000000-0xdfffffff,0xd6000000-0xd6ffffff irq 16 at device 0.0 on pci1
nvidia0: [GIANT-LOCKED]
pcm0: <CMedia CMI8738> port 0xd800-0xd8ff irq 17 at device 5.0 on pci0
uhci0: <VIA 83C572 USB controller> port 0xd400-0xd41f irq 19 at device 9.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <VIA 83C572 USB controller> on uhci0
usb0: USB revision 1.0
uhub0: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <VIA 83C572 USB controller> port 0xd000-0xd01f irq 16 at device 9.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <VIA 83C572 USB controller> on uhci1
usb1: USB revision 1.0
uhub1: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
pci0: <serial bus, USB> at device 9.2 (no driver attached)
fxp0: <Intel 82550 Pro/100 Ethernet> port 0xb800-0xb83f mem 0xd4800000-0xd481ffff,0xd5000000-0xd5000fff irq 16 at device 13.0 on pci0
miibus0: <MII bus> on fxp0
inphy0: <i82555 10/100 media interface> on miibus0
inphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp0: Ethernet address: 00:02:b3:8f:b0:f8
isab0: <PCI-ISA bridge> at device 17.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <VIA 8233A UDMA133 controller> port 0xb400-0xb40f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 17.1 on pci0
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
uhci2: <VIA 83C572 USB controller> port 0xb000-0xb01f irq 21 at device 17.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: <VIA 83C572 USB controller> on uhci2
usb2: USB revision 1.0
uhub2: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhci3: <VIA 83C572 USB controller> port 0xa800-0xa81f irq 21 at device 17.3 on pci0
uhci3: [GIANT-LOCKED]
usb3: <VIA 83C572 USB controller> on uhci3
usb3: USB revision 1.0
uhub3: VIA UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
fdc0: <floppy drive controller> port 0x3f7,0x3f2-0x3f5 irq 6 drq 2 on acpi0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0 port 0x778-0x77b,0x378-0x37f irq 7 drq 3 on acpi0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/9 bytes threshold
ppbus0: <Parallel port bus> on ppc0
ppi0: <Parallel I/O> on ppbus0
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
orm0: <ISA Option ROMs> at iomem 0xcc000-0xcd7ff,0xc0000-0xcbfff on isa0
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 1152618475 Hz quality 800
Timecounters tick every 10.000 msec
ad0: 38166MB <ST340810A/3.99> [77545/16/63] at ata0-master UDMA100
acd0: CDROM <GCR-8521B/1.00> at ata1-master PIO4
Mounting root from ufs:/dev/ad0s2a
WARNING: / was not properly dismounted
WARNING: /scratch was not properly dismounted
WARNING: /tmp was not properly dismounted
WARNING: /usr was not properly dismounted
WARNING: /var was not properly dismounted
WARNING: /var/mail was not properly dismounted
WARNING: /usr/local was not properly dismounted
WARNING: /usr/X11R6 was not properly dismounted
WARNING: /var/db/openldap-data was not properly dismounted
--- dmesg.boot ends here ---
--- crashdump.1 begins here ---
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This GDB was configured as "i386-marcel-freebsd".
doadump () at pcpu.h:159
(kgdb) backtrace
#0 doadump () at pcpu.h:159
#1 0xc051b965 in boot (howto=260) at /scratch/src/sys/kern/kern_shutdown.c:397
#2 0xc051bc4d in panic (fmt=0xc06a25bf "from debugger") at /scratch/src/sys/kern/kern_shutdown.c:553
#3 0xc044d605 in db_panic (addr=-1068357372, have_addr=0, count=-1, modif=0xcbf36a74 "")
at /scratch/src/sys/ddb/db_command.c:435
#4 0xc044d59c in db_command (last_cmdp=0xc070c824, cmd_table=0x0, aux_cmd_tablep=0xc06d1c58,
aux_cmd_tablep_end=0xc06d1c5c) at /scratch/src/sys/ddb/db_command.c:349
#5 0xc044d664 in db_command_loop () at /scratch/src/sys/ddb/db_command.c:455
#6 0xc044f1d9 in db_trap (type=12, code=0) at /scratch/src/sys/ddb/db_main.c:221
#7 0xc0532f1a in kdb_trap (type=12, code=0, tf=0xcbf36c04) at /scratch/src/sys/kern/subr_kdb.c:418
#8 0xc0678305 in trap_fatal (frame=0xcbf36c04, eva=2134480262) at /scratch/src/sys/i386/i386/trap.c:804
#9 0xc067808b in trap_pfault (frame=0xcbf36c04, usermode=0, eva=2134480262)
at /scratch/src/sys/i386/i386/trap.c:727
#10 0xc0677c89 in trap (frame=
{tf_fs = 24, tf_es = 16, tf_ds = 16, tf_edi = 0, tf_esi = -1045048288, tf_ebp = -873239484, tf_isp = -873239504, tf_ebx = -1045010752, tf_edx = 2, tf_ecx = -1045010752, tf_eax = 2134480258, tf_trapno = 12, tf_err = 0, tf_eip = -1068357372, tf_cs = 8, tf_eflags = 68227, tf_esp = -873239460, tf_ss = -1068356686})
at /scratch/src/sys/i386/i386/trap.c:417
#11 0xc0667b1a in calltrap () at /scratch/src/sys/i386/i386/exception.s:140
#12 0x00000018 in ?? ()
#13 0x00000010 in ?? ()
#14 0x00000010 in ?? ()
#15 0x00000000 in ?? ()
#16 0xc1b5d420 in ?? ()
#17 0xcbf36c44 in ?? ()
#18 0xcbf36c30 in ?? ()
#19 0xc1b666c0 in ?? ()
#20 0x00000002 in ?? ()
#21 0xc1b666c0 in ?? ()
#22 0x7f399582 in ?? ()
#23 0x0000000c in ?? ()
#24 0x00000000 in ?? ()
#25 0xc0522904 in sysctl_unregister_oid (oidp=0x0) at /scratch/src/sys/kern/kern_sysctl.c:166
#26 0xc0522bb2 in sysctl_remove_oid (oidp=0xc1b666c0, del=0, recurse=0)
at /scratch/src/sys/kern/kern_sysctl.c:336
#27 0xc0522967 in sysctl_ctx_free (clist=0xc1e944cc) at /scratch/src/sys/kern/kern_sysctl.c:207
#28 0xc052d9a6 in device_sysctl_fini (dev=0xc1e94480) at /scratch/src/sys/kern/subr_bus.c:319
#29 0xc052f63e in device_detach (dev=0xc1e94480) at /scratch/src/sys/kern/subr_bus.c:2235
#30 0xc04d08fa in usb_disconnect_port (up=0xc19ca7c0, parent=0xc19cab80)
at /scratch/src/sys/dev/usb/usb_subr.c:1454
#31 0xc04c780f in uhub_explore (dev=0xc1945c80) at /scratch/src/sys/dev/usb/uhub.c:434
#32 0xc04ce477 in usb_discover (v=0xc19de780) at /scratch/src/sys/dev/usb/usb.c:735
#33 0xc04cdf2e in usb_event_thread (arg=0xc19de780) at /scratch/src/sys/dev/usb/usb.c:421
#34 0xc0506701 in fork_exit (callout=0xc04cdec8 <usb_event_thread>, arg=0xc19de780, frame=0xcbf36d48)
at /scratch/src/sys/kern/kern_fork.c:811
#35 0xc0667b7c in fork_trampoline () at /scratch/src/sys/i386/i386/exception.s:209
(kgdb) quit
--- crashdump.1 ends here ---
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