Hi!
We have an amd64 system that still experiences crashes after installing
5.4, mostly during high loads. (It's been unstable all the time, really;
see previous posts.)
I've added dumpdev="/dev/amrd0s2b", and some time ago I did get
coredumps,
but with latest versions of the kernel, savecore does not give me a dump,
instead it says:
savecore: first and last dump headers disagree on /dev/amrd0s2b
savecore: unsaved dumps found but not saved
What can I do to fix this? I guess I need a core dump to proceed in finding
the problem?
Also, the machine does not reboot after a panic, that's an even bigger
problem, really, it needs console hands-on to revive every time.
Last time it crashed (last week, before updating to 5.4-RELEASE, that
system was a few weeks older on the RELENG_5_4 branch), it seems to have
get stuck on dumping the core, can this be the problem:
-------
Fatal trap 12: page fault while in kernel mode
cpuid = 0: apic id = 00
fault virtual address = 0x00
...
trap number = 12
panic: page fault
cpuid = 0
boot() called on cpu#0
Uptime: 1d23h50m36s
Dumping 2047 MB
16 32
--------
The cursor sits at the position after "32".
Seems to me it fails to dump the core, can this be it? On previous crashes,
before dumpdev was set, it would hang before that
The machine is Dell 2850 w/ Perc raid, Dual CPUs, SMP with hyperthreading
OFF in BIOS. Enclosing the KERNEL config, almost a GENERIC kernel. I can
provide more info if required.
So, in short, three question, really.
- How can I get rid of the crashes? (heh)
- How can I get the system to do unattended reboot when crashed?
- How do I get a coredump?
Any help appreciated.
/Palle
Diffing GENERIC vs KERNEL:
--- GENERIC Tue Apr 12 15:57:01 2005
+++ KERNEL Fri Apr 29 22:27:41 2005
@@ -20,7 +20,9 @@
machine amd64
cpu HAMMER
-ident GENERIC
+ident KERNEL
+
+makeoptions DEBUG=-g
# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for
devices.
@@ -45,7 +47,7 @@
options COMPAT_43 # Needed by COMPAT_LINUX32
options COMPAT_IA32 # Compatible with i386 binaries
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
-options COMPAT_LINUX32 # Compatible with i386 linux
binaries
+#options COMPAT_LINUX32 # Compatible with i386 linux
binaries
options SCSI_DELAY=15000 # Delay (in ms) before probing SCSI
options KTRACE # ktrace(1) support
options SYSVSHM # SYSV-style shared memory
@@ -64,10 +66,10 @@
# Enabling NO_MIXED_MODE gives a performance improvement on some
motherboards
# but does not work with some boards (mostly nVidia chipset based).
-#options NO_MIXED_MODE # Don't penalize working chipsets
+options NO_MIXED_MODE # Don't penalize working chipsets
# Linux 32-bit ABI support
-options LINPROCFS # Cannot be a module yet.
+#options LINPROCFS # Cannot be a module yet.
# Bus support. Do not remove isa, even if you have no isa slots
device acpi
@@ -260,3 +262,19 @@
device firewire # FireWire bus code
device sbp # SCSI over FireWire (Requires scbus and
da)
device fwe # Ethernet over FireWire (non-standard!)
+
+# SMP
+options SMP
+
+# SysV stuff
+# This provides support for System V shared memory.
+#
+options SYSVSHM
+options SYSVSEM
+options SYSVMSG
+options SHMMAXPGS=65536
+options SEMMNI=40
+options SEMMNS=240
+options SEMUME=40
+options SEMMNU=120
-------------- next part --------------
#
# GENERIC -- Generic kernel configuration file for FreeBSD/amd64
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
#
http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD: src/sys/amd64/conf/GENERIC,v 1.421.2.11.2.1 2005/04/09 17:28:37
kensmith Exp $
machine amd64
cpu HAMMER
ident KERNEL
makeoptions DEBUG=-g
# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for devices.
options SCHED_4BSD # 4BSD scheduler
options INET # InterNETworking
options INET6 # IPv6 communications protocols
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 NFSCLIENT # Network Filesystem Client
options NFSSERVER # Network Filesystem Server
options NFS_ROOT # NFS usable as /, requires NFSCLIENT
options NTFS # NT File System
options MSDOSFS # MSDOS Filesystem
options CD9660 # ISO 9660 Filesystem
options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_GPT # GUID Partition Tables.
options COMPAT_43 # Needed by COMPAT_LINUX32
options COMPAT_IA32 # Compatible with i386 binaries
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
#options COMPAT_LINUX32 # Compatible with i386 linux binaries
options SCSI_DELAY=15000 # 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 AHC_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~128k to driver.
options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~215k to driver.
options ADAPTIVE_GIANT # Giant mutex is adaptive.
# Workarounds for some known-to-be-broken chipsets (nVidia nForce3-Pro150)
device atpic # 8259A compatability
# Enabling NO_MIXED_MODE gives a performance improvement on some motherboards
# but does not work with some boards (mostly nVidia chipset based).
options NO_MIXED_MODE # Don't penalize working chipsets
# Linux 32-bit ABI support
#options LINPROCFS # Cannot be a module yet.
# Bus support. Do not remove isa, even if you have no isa slots
device acpi
device isa
device pci
# Floppy drives
device fdc
# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
device ataraid # ATA RAID drives
device atapicd # ATAPI CDROM drives
device atapifd # ATAPI floppy drives
device atapist # ATAPI tape drives
options ATA_STATIC_ID # Static device numbering
# SCSI Controllers
device ahc # AHA2940 and onboard AIC7xxx devices
device ahd # AHA39320/29320 and onboard AIC79xx devices
device amd # AMD 53C974 (Tekram DC-390(T))
device isp # Qlogic family
#device ispfw # Firmware for QLogic HBAs- normally a module
device mpt # LSI-Logic MPT-Fusion
#device ncr # NCR/Symbios Logic
device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
device trm # Tekram DC395U/UW/F DC315U adapters
device adv # Advansys SCSI adapters
device adw # Advansys wide SCSI adapters
device aic # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
device bt # Buslogic/Mylex MultiMaster SCSI adapters
# SCSI peripherals
device scbus # SCSI bus (required for SCSI)
device ch # SCSI media changers
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
device cd # CD
device pass # Passthrough device (direct SCSI access)
device ses # SCSI Environmental Services (and SAF-TE)
# RAID controllers interfaced to the SCSI subsystem
device amr # AMI MegaRAID
device arcmsr # Areca SATA II RAID
device ciss # Compaq Smart RAID 5*
device dpt # DPT Smartcache III, IV - See NOTES for options
device iir # Intel Integrated RAID
device ips # IBM (Adaptec) ServeRAID
device mly # Mylex AcceleRAID/eXtremeRAID
device twa # 3ware 9000 series PATA/SATA RAID
# RAID controllers
device aac # Adaptec FSA RAID
device aacp # SCSI passthrough for aac (requires CAM)
device ida # Compaq Smart RAID
device mlx # Mylex DAC960 family
#XXX pointer/int warnings
#device pst # Promise Supertrak SX6000
device twe # 3ware ATA RAID
# 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
# 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
# Serial (COM) ports
device sio # 8250, 16[45]50 based serial ports
# Parallel port
device ppc
device ppbus # Parallel port bus (required)
device lpt # Printer
device plip # TCP/IP over parallel
device ppi # Parallel port interface device
#device vpo # Requires scbus and da
# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to the sio and/or ppc drivers):
#device puc
# PCI Ethernet NICs.
device de # DEC/Intel DC21x4x (``Tulip'')
device em # Intel PRO/1000 adapter Gigabit Ethernet Card
device ixgb # Intel PRO/10GbE Ethernet Card
device txp # 3Com 3cR990 (``Typhoon'')
device vx # 3Com 3c590, 3c595 (``Vortex'')
# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these
NICs!
device miibus # MII bus support
device bfe # Broadcom BCM440x 10/100 Ethernet
device bge # Broadcom BCM570xx Gigabit Ethernet
device dc # DEC/Intel 21143 and various workalikes
device fxp # Intel EtherExpress PRO/100B (82557, 82558)
device lge # Level 1 LXT1001 gigabit Ethernet
device nge # NatSemi DP83820 gigabit Ethernet
device pcn # AMD Am79C97x PCI 10/100 (precedence over 'lnc')
device re # RealTek 8139C+/8169/8169S/8110S
device rl # RealTek 8129/8139
device sf # Adaptec AIC-6915 (``Starfire'')
device sis # Silicon Integrated Systems SiS 900/SiS 7016
device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
device ste # Sundance ST201 (D-Link DFE-550TX)
device ti # Alteon Networks Tigon I/II gigabit Ethernet
device tl # Texas Instruments ThunderLAN
device tx # SMC EtherPower II (83c170 ``EPIC'')
device vge # VIA VT612x gigabit Ethernet
device vr # VIA Rhine, Rhine II
device wb # Winbond W89C840F
device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# ISA Ethernet NICs. pccard NICs included.
device cs # Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'
# XXX kvtop brokenness, pointer/int warnings
#device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards
device ex # Intel EtherExpress Pro/10 and Pro/10+
device ep # Etherlink III based cards
device fe # Fujitsu MB8696x based cards
# XXX kvtop brokenness, pointer/int warnings
#device lnc # NE2100, NE32-VL Lance Ethernet cards
device sn # SMC's 9000 series of Ethernet chips
device xe # Xircom pccard Ethernet
# Wireless NIC cards
device wlan # 802.11 support
device an # Aironet 4500/4800 802.11 wireless NICs.
device awi # BayStack 660 and others
device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
# 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 sl # Kernel SLIP
device ppp # Kernel PPP
device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
device md # Memory "disks"
device gif # IPv6 and IPv4 tunneling
device faith # IPv6-to-IPv4 relaying (translation)
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device bpf # Berkeley packet filter
# USB support
device uhci # UHCI PCI->USB interface
device ohci # OHCI PCI->USB interface
#device ehci # EHCI PCI->USB interface (USB 2.0)
device usb # USB Bus (required)
#device udbp # USB Double Bulk Pipe devices
device ugen # Generic
device uhid # "Human Interface Devices"
device ukbd # Keyboard
device ulpt # Printer
device umass # Disks/Mass storage - Requires scbus and da
device ums # Mouse
device urio # Diamond Rio 500 MP3 player
device uscanner # Scanners
# USB Ethernet, requires mii
device aue # ADMtek USB Ethernet
device axe # ASIX Electronics USB Ethernet
device cdce # Generic USB over Ethernet
device cue # CATC USB Ethernet
device kue # Kawasaki LSI USB Ethernet
device rue # RealTek RTL8150 USB Ethernet
# FireWire support
device firewire # FireWire bus code
device sbp # SCSI over FireWire (Requires scbus and da)
device fwe # Ethernet over FireWire (non-standard!)
# SMP
options SMP
# SysV stuff
# This provides support for System V shared memory.
#
options SYSVSHM
options SYSVSEM
options SYSVMSG
options SHMMAXPGS=65536
options SEMMNI=40
options SEMMNS=240
options SEMUME=40
options SEMMNU=120
-------------- next part --------------
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-RELEASE #6: Wed May 18 15:56:44 CEST 2005
girgen@melon.pingpong.net:/usr/obj/usr/src/sys/MELON
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2793.02-MHz K8-class CPU)
Origin = "GenuineIntel" Id = 0xf41 Stepping = 1
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0x641d<SSE3,RSVD2>,MON,DS_CPL,CNTX-ID,CX16,<b14>>
AMD Features=0x20000800<SYSCALL,LM>
real memory = 2147221504 (2047 MB)
avail memory = 2061484032 (1965 MB)
ACPI APIC Table: <DELL PE BKC >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 6
ioapic0: Changing APIC ID to 7
ioapic1: Changing APIC ID to 8
ioapic1: WARNING: intbase 32 != expected base 24
ioapic2: Changing APIC ID to 9
ioapic2: WARNING: intbase 64 != expected base 56
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 32-55 on motherboard
ioapic2 <Version 2.0> irqs 64-87 on motherboard
acpi0: <DELL PE BKC> 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
cpu1: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 2.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> at device 0.0 on pci1
pci2: <ACPI PCI bus> on pcib2
amr0: <LSILogic MegaRAID 1.51> mem
0xdfdc0000-0xdfdfffff,0xd80f0000-0xd80fffff irq 46 at device 14.0 on pci2
amr0: <LSILogic PERC 4e/Di> Firmware 513O, BIOS H418, 256MB RAM
pcib3: <ACPI PCI-PCI bridge> at device 0.2 on pci1
pci3: <ACPI PCI bus> on pcib3
pcib4: <ACPI PCI-PCI bridge> at device 4.0 on pci0
pci4: <ACPI PCI bus> on pcib4
pcib5: <ACPI PCI-PCI bridge> at device 5.0 on pci0
pci5: <ACPI PCI bus> on pcib5
pcib6: <ACPI PCI-PCI bridge> at device 0.0 on pci5
pci6: <ACPI PCI bus> on pcib6
em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port
0xecc0-0xecff mem 0xdfae0000-0xdfafffff irq 64 at device 7.0 on pci6
em0: Ethernet address: 00:11:43:37:a4:9e
em0: Speed:N/A Duplex:N/A
pcib7: <ACPI PCI-PCI bridge> at device 0.2 on pci5
pci7: <ACPI PCI bus> on pcib7
em1: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port
0xdcc0-0xdcff mem 0xdf8e0000-0xdf8fffff irq 65 at device 8.0 on pci7
em1: Ethernet address: 00:11:43:37:a4:9f
em1: Speed:N/A Duplex:N/A
pcib8: <ACPI PCI-PCI bridge> at device 6.0 on pci0
pci8: <ACPI PCI bus> on pcib8
uhci0: <Intel 82801EB (ICH5) USB controller USB-A> port 0xbce0-0xbcff irq
16 at device 29.0 on pci0
usb0: <Intel 82801EB (ICH5) USB controller USB-A> 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: <Intel 82801EB (ICH5) USB controller USB-B> port 0xbcc0-0xbcdf irq
19 at device 29.1 on pci0
usb1: <Intel 82801EB (ICH5) USB controller USB-B> 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
uhci2: <Intel 82801EB (ICH5) USB controller USB-C> port 0xbca0-0xbcbf irq
18 at device 29.2 on pci0
usb2: <Intel 82801EB (ICH5) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
pci0: <serial bus, USB> at device 29.7 (no driver attached)
pcib9: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci9: <ACPI PCI bus> on pcib9
pci9: <display, VGA> at device 13.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH5 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
fdc0: <floppy drive controller> port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on
acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on
acpi0
sio0: type 16550A
orm0: <ISA Option ROMs> at iomem
0xec000-0xeffff,0xce800-0xcf7ff,0xcb000-0xcbfff,0xc0000-0xcafff on isa0
ppc0: cannot reserve I/O port range
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
uhub3: Dell product 0xa001, class 9/0, rev 2.00/0.00, addr 2
uhub3: 2 ports with 2 removable, self powered
Timecounters tick every 1.000 msec
acd0: CDROM <TEAC CD-ROM CD-224E/K.9A> at ata0-master PIO4
amrd0: <LSILogic MegaRAID logical drive> on amr0
amrd0: 139760MB (286228480 sectors) RAID 5 (optimal)
ses0 at amr0 bus 0 target 6 lun 0
ses0: <PE/PV 1x6 SCSI BP 1.0> Fixed Processor SCSI-2 device
ses0: SAF-TE Compliant Device
SMP: AP CPU #1 Launched!
Mounting root from ufs:/dev/amrd0s2a
WARNING: / was not properly dismounted
WARNING: /misc was not properly dismounted
/misc: mount pending error: blocks 22544 files 3
WARNING: /usr was not properly dismounted
WARNING: /usr/local was not properly dismounted
/usr/local: mount pending error: blocks 348 files 1
WARNING: /var was not properly dismounted
/var: mount pending error: blocks 2040 files 130
WARNING: /var/spool/imap was not properly dismounted
em1: Link is up 100 Mbps Half Duplex
em0: Link is up 1000 Mbps Full Duplex
Interrupt storm detected on "irq18: uhci2"; throttling interrupt
source
Interrupt storm detected on "irq16: uhci0"; throttling interrupt
source
Palle Girgensohn
2005-May-23 10:18 UTC
system does not reboot after panic (Was: savecore: first and last dump headers disagree)
--On m?ndag, maj 23, 2005 10.30.47 +0200 Palle Girgensohn <girgen@FreeBSD.org> wrote:> Hi! > > We have an amd64 system that still experiences crashes after installing > 5.4, mostly during high loads. (It's been unstable all the time, really; > see previous posts.) > > I've added dumpdev="/dev/amrd0s2b", and some time ago I did get > coredumps, but with latest versions of the kernel, savecore does not give > me a dump, instead it says: > > savecore: first and last dump headers disagree on /dev/amrd0s2b > savecore: unsaved dumps found but not saved > > What can I do to fix this? I guess I need a core dump to proceed in > finding the problem?Peter Holm tipped me of using savecore -f. Hopefully this will give me a core next time. This one was already destroyed by swapping. :(> Also, the machine does not reboot after a panic, that's an even bigger > problem, really, it needs console hands-on to revive every time.This is really *the* main issue. It won't reboot automatically, it just sits there waiting for keyboard action... :( there is no debugger in the kernel, would adding kbd and kbd_unattende help? I doubt it? Anything else that can be done? /Palle> Last time it crashed (last week, before updating to 5.4-RELEASE, that > system was a few weeks older on the RELENG_5_4 branch), it seems to have > get stuck on dumping the core, can this be the problem: > > ------- > Fatal trap 12: page fault while in kernel mode > cpuid = 0: apic id = 00 > fault virtual address = 0x00 > ... > trap number = 12 > panic: page fault > cpuid = 0 > boot() called on cpu#0 > Uptime: 1d23h50m36s > Dumping 2047 MB > 16 32 > -------- > The cursor sits at the position after "32". > > Seems to me it fails to dump the core, can this be it? On previous > crashes, before dumpdev was set, it would hang before that > > The machine is Dell 2850 w/ Perc raid, Dual CPUs, SMP with hyperthreading > OFF in BIOS. Enclosing the KERNEL config, almost a GENERIC kernel. I can > provide more info if required. > > So, in short, three question, really. > > - How can I get rid of the crashes? (heh) > - How can I get the system to do unattended reboot when crashed? > - How do I get a coredump? > Any help appreciated. > > /Palle > > > Diffing GENERIC vs KERNEL: > > --- GENERIC Tue Apr 12 15:57:01 2005 > +++ KERNEL Fri Apr 29 22:27:41 2005 > @@ -20,7 +20,9 @@ > > machine amd64 > cpu HAMMER > -ident GENERIC > +ident KERNEL > + > +makeoptions DEBUG=-g > > # To statically compile in device wiring instead of /boot/device.hints > #hints "GENERIC.hints" # Default places to look for > devices. > @@ -45,7 +47,7 @@ > options COMPAT_43 # Needed by COMPAT_LINUX32 > options COMPAT_IA32 # Compatible with i386 binaries > options COMPAT_FREEBSD4 # Compatible with FreeBSD4 > -options COMPAT_LINUX32 # Compatible with i386 linux > binaries > +#options COMPAT_LINUX32 # Compatible with i386 linux > binaries > options SCSI_DELAY=15000 # Delay (in ms) before probing > SCSI > options KTRACE # ktrace(1) support > options SYSVSHM # SYSV-style shared memory > @@ -64,10 +66,10 @@ > > # Enabling NO_MIXED_MODE gives a performance improvement on some > motherboards > # but does not work with some boards (mostly nVidia chipset based). > -#options NO_MIXED_MODE # Don't penalize working chipsets > +options NO_MIXED_MODE # Don't penalize working chipsets > > # Linux 32-bit ABI support > -options LINPROCFS # Cannot be a module yet. > +#options LINPROCFS # Cannot be a module yet. > > # Bus support. Do not remove isa, even if you have no isa slots > device acpi > @@ -260,3 +262,19 @@ > device firewire # FireWire bus code > device sbp # SCSI over FireWire (Requires scbus and > da) > device fwe # Ethernet over FireWire (non-standard!) > + > +# SMP > +options SMP > + > +# SysV stuff > +# This provides support for System V shared memory. > +# > +options SYSVSHM > +options SYSVSEM > +options SYSVMSG > +options SHMMAXPGS=65536 > +options SEMMNI=40 > +options SEMMNS=240 > +options SEMUME=40 > +options SEMMNU=120
In the last episode (May 23), Palle Girgensohn said:> We have an amd64 system that still experiences crashes after > installing 5.4, mostly during high loads. (It's been unstable all the > time, really; see previous posts.) > > I've added dumpdev="/dev/amrd0s2b", and some time ago I did get coredumps, > but with latest versions of the kernel, savecore does not give me a dump, > instead it says: > > savecore: first and last dump headers disagree on /dev/amrd0s2b > savecore: unsaved dumps found but not saved"savecore -vv" should print enough of both headers to let you see what's different.> Fatal trap 12: page fault while in kernel mode > cpuid = 0: apic id = 00 > fault virtual address = 0x00 > ... > trap number = 12 > panic: page fault > cpuid = 0 > boot() called on cpu#0 > Uptime: 1d23h50m36s > Dumping 2047 MB > 16 32 > -------- > The cursor sits at the position after "32".That's probably why your headers disagree :) If you put "options KDB_TRACE" in your kernel config file, it will print a small stack trace before trying to dump, which might be enough to track down the cause of the panic even without a dump. -- Dan Nelson dnelson@allantgroup.com