Panic - cannot get a dump

Stephen Montgomery-Smith stephen at
Thu Mar 10 18:06:10 PST 2005

(This is a follow up to earlier messages I sent to freebsd-smp because 
then I thought it was an smp issue - now I am not so sure.)

I have been experiencing some panics on my dual processor Xeon system. 
It can take up to a few days for a panic to happen, and it seems to 
happen under heavy loads.

I have set the dumpdev variable in rc.conf as the instructions say, and 
indeed a "reboot -d" does actually generate a good dump.  But for some 
reason this particular panic refuses to create any dump at all.

The instruction pointer is at 0xc060b885, and:
nm -n /boot/kernel/kernel | grep c060b
c060b09c t pgadjustjobc
c060b128 T fixjobc
c060b240 t orphanpg
c060b390 T fill_kinfo_proc
c060b3a4 T fill_kinfo_thread
c060bbbc T pstats_alloc
c060bbd8 T pstats_fork
c060bc08 T pstats_free
c060bc1c T zpfind
c060bc98 t sysctl_out_proc
c060bf20 t sysctl_kern_proc

I am using a recent version of RELENG_5 (last make world was about March 4).

The disk is a RAID 0 twe0: <3ware Storage Controller. Driver version>

I am not suspecting hardware problems, because of the consistency of the 
value of the instruction pointer when the crash occurs.

I am now going to try the system with HTT disabled.  Maybe it will crash 
likewise if I wait long enough.

Here is my config file

include GENERIC
ident HUB2
nooption INET6
options SMP
device atapicam

and dmesg:

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 5.4-PRERELEASE #1: Fri Mar  4 19:15:30 CST 2005
     stephen at hub2.montlan:/usr/src/sys/i386/compile/HUB2
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 3.40GHz (3391.52-MHz 686-class CPU)
   Origin = "GenuineIntel"  Id = 0xf41  Stepping = 1
   Hyperthreading: 2 logical CPUs
real memory  = 3221020672 (3071 MB)
avail memory = 3150659584 (3004 MB)
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
  cpu0 (BSP): APIC ID:  0
  cpu1 (AP): APIC ID:  1
  cpu2 (AP): APIC ID:  6
  cpu3 (AP): APIC ID:  7
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 24-47 on motherboard
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <A M I OEMRSDT> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
cpu0: <ACPI CPU> on acpi0
acpi_throttle0: <ACPI CPU Throttling> on cpu0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pci0: <unknown> at device 0.1 (no driver attached)
pcib1: <ACPI PCI-PCI bridge> at device 2.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> at device 3.0 on pci0
pci2: <ACPI PCI bus> on pcib2
pcib3: <ACPI PCI-PCI bridge> at device 4.0 on pci0
pci3: <ACPI PCI bus> on pcib3
pci3: <display, VGA> at device 0.0 (no driver attached)
pcib4: <ACPI PCI-PCI bridge> at device 28.0 on pci0
pci4: <ACPI PCI bus> on pcib4
em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port 
0xdc00-0xdc3f mem 0xdeec0000-0xdeedffff,0xdeee0000-0xdeefffff irq 24 at 
device 2.0 on pci4
em0: Ethernet address: 00:0e:0c:63:34:14
em0:  Speed:N/A  Duplex:N/A
twe0: <3ware Storage Controller. Driver version> port 
0xd880-0xd88f mem 0xde000000-0xde7fffff irq 25 at device 3.0 on pci4
twe0: 2 ports, Firmware FE8S, BIOS BE7X
uhci0: <UHCI (generic) USB controller> port 0xc880-0xc89f irq 16 at 
device 29.0 on pci0
usb0: <UHCI (generic) 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
uhci1: <UHCI (generic) USB controller> port 0xcc00-0xcc1f irq 19 at 
device 29.1 on pci0
usb1: <UHCI (generic) USB controller> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
pci0: <base peripheral> at device 29.4 (no driver attached)
pci0: <base peripheral, interrupt controller> at device 29.5 (no driver 
pci0: <serial bus, USB> at device 29.7 (no driver attached)
pcib5: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci5: <ACPI PCI bus> on pcib5
em1: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port 
0xec00-0xec3f mem 0xdefa0000-0xdefbffff irq 16 at device 3.0 on pci5
em1: Ethernet address: 00:0e:0c:3d:e1:6f
em1:  Speed:N/A  Duplex:N/A
pci5: <multimedia, audio> at device 4.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel 6300ESB UDMA100 controller> port 
0xfc00-0xfc0f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 31.1 on pci0
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
acpi_button0: <Power Button> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model IntelliMouse Explorer, device ID 4
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on 
sio0: type 16550A
sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
fdc0: <floppy drive controller (FDE)> port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 
on acpi0
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
orm0: <ISA Option ROMs> at iomem 
on isa0
pmtimer0 on isa0
ppc0: parallel port not found.
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
Timecounters tick every 10.000 msec
ata0-master: DMA limited to UDMA33, non-ATA66 cable or device
acd0: DVDR <LITE-ON DVDRW SOHW-1633S/BS0C> at ata0-master UDMA33
twed0: <Unit 0, RAID0, Normal> on twe0
twed0: 228944MB (468879104 sectors)
SMP: AP CPU #3 Launched!
SMP: AP CPU #1 Launched!
SMP: AP CPU #2 Launched!
cd0 at ata0 bus 0 target 0 lun 0
cd0: <LITE-ON DVDRW SOHW-1633S BS0C> Removable CD-ROM SCSI-0 device
cd0: 33.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present
Mounting root from ufs:/dev/twed0s3a
WARNING: / was not properly dismounted
WARNING: /usr was not properly dismounted
/usr: mount pending error: blocks 300 files 3
em0: Link is up 1000 Mbps Full Duplex
em1: Link is up 100 Mbps Full Duplex
em1: Link is up 100 Mbps Full Duplex
em1: Link is up 100 Mbps Full Duplex

Thanks, Stephen

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