So this panic also exists in RELENG_5_4, and I have managed
to get a dump of it.
First a few words about the system:
uname -a:
FreeBSD kvip88.kvi.nl 5.4-RELEASE FreeBSD 5.4-RELEASE #1: Fri May 6
16:03:32 CEST 2005
I did a fresh cvsup/buildworld/buildkernel today. Kernel config
is attached below. Panic is 100% reproducible by just pressing any
key during boot, and even sometimes on the live system (it happened
only once for me, when I pressed a key on vty0, which has no getty
running). This specific dump was taken at the very early stage of
the boot sequence, just after attaching swap space. Unfortunately
unlike in the examples from developers handbook I can't get a
panic message back from a dump (is it because I compiled a debugger
into the kernel and called panic from there manually?), but stack
trace starting from entry 24 corresponds to the one I saw there.
PS.
Why doadump() refuses to write a 511Mb big dump into 512Mb
swap partition?
PPS.
Do I really need a "option KDB/DDB" in the kernel to get dumps?
--
Best regards,
Alexander.
machine i386
cpu I686_CPU
options CPU_SUSP_HLT
options INCLUDE_CONFIG_FILE
ident KVIP88
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
options KDB
options KDB_TRACE
options DDB
#options PREEMPTION # allows kernel threads
preemtion
options SCHED_4BSD # 4BSD scheduler
options INET # InterNETworking
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
options UFS_ACL # Support for access control lists
options UFS_DIRHASH # Improve performance on big directories
options MD_ROOT # MD is a potential root device
options MSDOSFS # MSDOS Filesystem
options CD9660 # ISO 9660 Filesystem
#options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options SCSI_DELAY=150 # Delay (in ms) before probing SCSI
options KTRACE # ktrace(1) support
options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores
options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time
extensions
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
options ADAPTIVE_GIANT # Giant mutex is adaptive.
device apic # I/O APIC
# Add character code conversion support with LIBICONV.
options CD9660_ICONV
options MSDOSFS_ICONV
options LIBICONV
# Additionall network options
options ALTQ
options ALTQ_CBQ # Class Bases Queueing
options ALTQ_PRIQ # Priority Queueing
options IPDIVERT # divert sockets
options IPFIREWALL_DEFAULT_TO_ACCEPT # allow everything by default
options FAST_IPSEC # new IPsec (cannot define w/ IPSEC)
#options IPSEC # IP security
#options IPSEC_ESP # IP security (crypto; define
w/ IPSEC)
# Bus support. Do not remove isa, even if you have no isa slots
device isa
device pci
# Floppy drives
device fdc
# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
#device atapicd # ATAPI CDROM drives
options ATA_STATIC_ID # Static device numbering
device atapicam # emulate ATAPI devices as SCSI ditto via CAM
# needs CAM to be present (scbus & pass)
# SCSI peripherals
device scbus # SCSI bus (required for SCSI)
device da # Direct Access (disks)
device cd # CD
device pass # Passthrough device (direct SCSI access)
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc # AT keyboard controller
device atkbd # AT keyboard
device psm # PS/2 mouse
device vga # VGA video card driver
device splash # Splash screen and screen saver support
# syscons is the default console driver, resembling an SCO console
device sc
options SC_ALT_MOUSE_IMAGE
options SC_PIXEL_MODE
options VESA
device agp # support several AGP chipsets
device radeondrm
device mgadrm
# Floating point support - do not disable.
device npx
# Power management support (see NOTES for more options)
#device apm
#device cpufreq
# Add suspend/resume support for the i8254.
device pmtimer
# PCCARD (PCMCIA) support
# PCMCIA and cardbus bridge support
#device cbb # cardbus (yenta) bridge
#device pccard # PC Card (16-bit) bus
#device cardbus # CardBus (32-bit) bus
# PCI Ethernet NICs that use the common MII bus controller code.
device miibus # MII bus support
device bfe # Broadcom BCM440x 10/100 Ethernet
device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# Pseudo devices.
device loop # Network loopback
device mem # Memory and kernel memory devices
device io # I/O device
device random # Entropy device
device ether # Ethernet support
device pty # Pseudo-ttys (telnet etc)
device md # Memory "disks"
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
device bpf # Berkeley packet filter
# USB support
device uhci # UHCI PCI->USB interface
#device ehci # EHCI PCI->USB interface
device usb # USB Bus (required)
device ugen # Generic
device uhid # "Human Interface Devices"
device ukbd # Keyboard
device umass # Disks/Mass storage - Requires scbus and da
device ums # Mouse
# FireWire support
#device firewire # FireWire bus code
#device sbp # SCSI over FireWire (Requires scbus and da)
#device fwe # Ethernet over FireWire (non-standard!)
# Sound support
device sound # The generic sound driver.
device snd_ich # Intel ICH PCI and some more audio controllers
# embedded in a chipset.
# Crypto subsystem
device crypto # core crypto support
dump.txt
[EMAIL PROTECTED]:/sys/i386/compile/KVIP88/ > sd kgdb kernel.debug
/var/crash/vmcore.1
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so:
Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-marcel-freebsd".
#0 doadump () at pcpu.h:159
159 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) bt
#0 doadump () at pcpu.h:159
#1 0xc0515fb9 in boot (howto=260) at ../../../kern/kern_shutdown.c:410
#2 0xc0516679 in panic (fmt=0xc06a2937 "from debugger") at
../../../kern/kern_shutdown.c:566
#3 0xc044779d in db_panic (addr=-1067107782, have_addr=0, count=-1,
modif=0xd41dda9c "")
at ../../../ddb/db_command.c:435
#4 0xc0447b99 in db_command_loop () at ../../../ddb/db_command.c:349
#5 0xc0449854 in db_trap (type=12, code=0) at ../../../ddb/db_main.c:221
#6 0xc05312aa in kdb_trap (type=0, code=0, tf=0xd41ddc44) at
../../../kern/subr_kdb.c:468
#7 0xc066e29a in trap_fatal (frame=0xd41ddc44, eva=20) at
../../../i386/i386/trap.c:812
#8 0xc066e564 in trap_pfault (frame=0xd41ddc44, usermode=0, eva=20)
at ../../../i386/i386/trap.c:735
#9 0xc066e980 in trap (frame=
{tf_fs = 24, tf_es = 16, tf_ds = 16, tf_edi = -1066188128, tf_esi = 32,
tf_ebp = -736240480, tf_isp = -736240528, tf_ebx = -1045637120, tf_edx = 0,
tf_ecx = -1066201856, tf_eax = 32, tf_trapno = 12, tf_err = 0, tf_eip =
-1067107782, tf_cs = 8, tf_eflags = 66050, tf_esp = 32, tf_ss = -1045637120})
at ../../../i386/i386/trap.c:425
#10 0xc065d23a in calltrap () at ../../../i386/i386/exception.s:140
#11 0x00000018 in ?? ()
#12 0x00000010 in ?? ()
#13 0x00000010 in ?? ()
#14 0xc07342a0 in sc_devclass ()
#15 0x00000020 in ?? ()
#16 0xd41ddca0 in ?? ()
#17 0xd41ddc70 in ?? ()
#18 0xc1acd800 in ?? ()
#19 0x00000000 in ?? ()
#20 0xc0730d00 in kernel_console_ts ()
#21 0x00000020 in ?? ()
#22 0x0000000c in ?? ()
---Type <return> to continue, or q <return> to quit---
#23 0x00000000 in ?? ()
#24 0xc0653a3a in sckbdevent (thiskbd=0xc071e0c0, event=0, arg=0xc07342a0) at
linedisc.h:122
#25 0xc0644d16 in atkbd_intr (kbd=0xc071e0c0, arg=0x0) at
../../../dev/kbd/atkbd.c:461
#26 0xc0678c11 in atkbd_isa_intr (arg=0x0) at ../../../isa/atkbd_isa.c:177
#27 0xc04fd99d in ithread_loop (arg=0xc197bc80) at ../../../kern/kern_intr.c:547
#28 0xc04fc9d8 in fork_exit (callout=0xc04fd8e6 <ithread_loop>, arg=0x0,
frame=0x0)
at ../../../kern/kern_fork.c:791
#29 0xc065d29c in fork_trampoline () at ../../../i386/i386/exception.s:209
(kgdb)
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