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Date:      Sat, 16 Apr 2005 14:57:34 +0200
From:      nocturnal <nocturnal@swehack.se>
To:        freebsd-questions@freebsd.org
Subject:   Unexpected swap unmounts
Message-ID:  <42610BBE.9020300@swehack.se>

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Hi

I'm running a FreeBSD 4.11 system on my laptop, before that i had 4.10 
and it's always worked great, i can't think of any new major changes 
i've made or things i've done in the last months. Just recently it 
started unmounting my swap partition for some reason, i get no warning 
but i have started checking dmesg and see it happen. Only a reboot can 
fix it, i've tried doing swapon /dev/partition as listed in fstab but it 
returns invalid argument. One warning signal which i can see if i 
continue using the laptop like usual for a while after the unmount is 
that firefox gets killed, or any other heavy application. Of course this 
is a cause of not having any swap mounted and dmesg tells me that.

As i had recently switched to XFCE from fluxbox i suspected it was too 
heavy for my laptop but switching back to fluxbox made no difference. 
One thing that did happen just before the problems was a lib issue after 
a portupgrade, it forced me to map a few libs to their current versions 
in libmap.conf but i had it running for at least a few weeks after that 
without problems, it is hard to tell though.

This is my libmpa.conf file.
=========
#firefox
libglib-2.0.so.400              libglib-2.0.so.600

#thunderbird
libgtk-x11-2.0.so.400           libgtk-x11-2.0.so.600
libgdk-x11-2.0.so.400           libgdk-x11-2.0.so.600
libatk-1.0.so.800               libatk-1.0.so.901
libgdk_pixbuf-2.0.so.400        libgdk_pixbuf-2.0.so.600
libpangoxft-1.0.so.600          libpangoxft-1.0.so.800
libpangox-1.0.so.600            libpangox-1.0.so.800
libpango-1.0.so.600             libpango-1.0.so.800
libgobject-2.0.so.400           libgobject-2.0.so.600
libgmodule-2.0.so.400           libgmodule-2.0.so.600

#file-roller
libpangoft2-1.0.so.600          libpangoft2-1.0.so.800
libgthread-2.0.so.400           libgthread-2.0.so.600
=========

This is the message i get indicating that my swap partition is no longer 
mounted.

swap_pager_getswapspace: failed

I sure hope someone knows what to do and if you want to suggest 
migrating to the 5 branch then thats ok because i've been thinking of 
doing that.

I'm using an IBM ThinkPad R40 with 256MB of RAM and a 1.9GHz Pentium 4 
Mobile CPU.

Here is my kernel config file to in case it helps.

=========
machine         i386
#cpu            I386_CPU
#cpu            I486_CPU
#cpu            I586_CPU
cpu             I686_CPU
ident           NOCTURNAL
maxusers        32

#makeoptions    DEBUG=-g                #Build kernel with gdb(1) debug 
symbols

options         MATH_EMULATE            #Support for x87 emulation
options         INET                    #InterNETworking
#options        INET6                   #IPv6 communications protocols
options         FFS                     #Berkeley Fast Filesystem
options         FFS_ROOT                #FFS usable as root device [keep 
this!]
options         SOFTUPDATES             #Enable FFS soft updates support
options         UFS_DIRHASH             #Improve performance on big 
directories
options         MFS                     #Memory Filesystem
options         MD_ROOT                 #MD is a potential root device
options         NFS                     #Network Filesystem
options         NFS_ROOT                #NFS usable as root device, NFS 
required
options         MSDOSFS                 #MSDOS Filesystem
options         CD9660                  #ISO 9660 Filesystem
options         CD9660_ROOT             #CD-ROM usable as root, CD9660 
required
options         PROCFS                  #Process filesystem
options         COMPAT_43               #Compatible with BSD 4.3 [KEEP 
THIS!]
options         SCSI_DELAY=15000        #Delay (in ms) before probing SCSI
options         UCONSOLE                #Allow users to grab the console
options         USERCONFIG              #boot -c editor
options         VISUAL_USERCONFIG       #visual boot -c editor
options         KTRACE                  #ktrace(1) support
options         SYSVSHM                 #SYSV-style shared memory
options         SYSVMSG                 #SYSV-style message queues
options         SYSVSEM                 #SYSV-style semaphores
options         P1003_1B                #Posix P1003_1B real-time extensions
options         _KPOSIX_PRIORITY_SCHEDULING
options         ICMP_BANDLIM            #Rate limit bad replies
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.

# To make an SMP kernel, the next two are needed
#options        SMP                     # Symmetric MultiProcessor Kernel
#options        APIC_IO                 # Symmetric (APIC) I/O

device          isa
device          eisa
device          pci

# Floppy drives
#device         fdc0    at isa? port IO_FD1 irq 6 drq 2
#device         fd0     at fdc0 drive 0
#device         fd1     at fdc0 drive 1
#
# If you have a Toshiba Libretto with its Y-E Data PCMCIA floppy,
# don't use the above line for fdc0 but the following one:
#device         fdc0

# ATA and ATAPI devices
device          ata0    at isa? port IO_WD1 irq 14
device          ata1    at isa? port IO_WD2 irq 15
device          ata
device          atadisk                 # ATA disk 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         ahb             # EISA AHA1742 family
#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         mpt             # LSI-Logic MPT/Fusion
#device         ncr             # NCR/Symbios Logic
#device         sym             # NCR/Symbios Logic (newer chipsets)
#options        SYM_SETUP_LP_PROBE_MAP=0x40
                                 # Allow ncr to attach legacy NCR 
devices when
                                 # both sym and ncr are configured

#device         adv0    at isa?
#device         adw
#device         bt0     at isa?
#device         aha0    at isa?
#device         aic0    at isa?

#device         ncv             # NCR 53C500
#device         nsp             # Workbit Ninja SCSI-3
#device         stg             # TMC 18C30/18C50

# SCSI peripherals
device          scbus           # SCSI bus (required)
#device         da              # Direct Access (disks)
#device         sa              # Sequential Access (tape etc)
device          cd              # CD
#device         pass            # Passthrough device (direct SCSI access)

# RAID controllers interfaced to the SCSI subsystem
#device         asr             # DPT SmartRAID V, VI and Adaptec SCSI RAID
#device         dpt             # DPT Smartcache - See LINT for options!
#device         iir             # Intel Integrated RAID
#device         mly             # Mylex AcceleRAID/eXtremeRAID
#device         ciss            # Compaq SmartRAID 5* series
#device         twa             # 3ware 9000 series PATA/SATA RAID

# RAID controllers
#device         aac             # Adaptec FSA RAID, Dell PERC2/PERC3
#device         aacp            # SCSI passthrough for aac (requires CAM)
#device         ida             # Compaq Smart RAID
#device         ips             # IBM/Adaptec ServeRAID
#device         amr             # AMI MegaRAID
#device         mlx             # Mylex DAC960 family
#device         pst             # Promise Supertrak SX6000
#device         twe             # 3ware Escalade

# atkbdc0 controls both the keyboard and the PS/2 mouse
device          atkbdc0 at isa? port IO_KBD
device          atkbd0  at atkbdc? irq 1 flags 0x1
device          psm0    at atkbdc? irq 12

device          vga0    at isa?

# splash screen/screen saver
pseudo-device   splash

# syscons is the default console driver, resembling an SCO console
device          sc0     at isa? flags 0x100

# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
device          vt0     at isa?
options         XSERVER                 # support for X server on a vt 
console
options         FAT_CURSOR              # start with block cursor
# If you have a ThinkPAD, uncomment this along with the rest of the PCVT 
lines
options         PCVT_SCANSET=2          # IBM keyboards are non-std

device          agp             # support several AGP chipsets

# Floating point support - do not disable.
device          npx0    at nexus? port IO_NPX irq 13

# Power management support (see LINT for more options)
device          apm0    at nexus? disable flags 0x20 # Advanced Power 
Management

# PCCARD (PCMCIA) support
device          card
device          pcic0   at isa? irq 0 port 0x3e0 iomem 0xd0000
device          pcic1   at isa? irq 0 port 0x3e2 iomem 0xd4000 disable

# Serial (COM) ports
device          sio0    at isa? port IO_COM1 flags 0x10 irq 4
device          sio1    at isa? port IO_COM2 irq 3
device          sio2    at isa? disable port IO_COM3 irq 5
device          sio3    at isa? disable port IO_COM4 irq 9

# Parallel port
device          ppc0    at isa? irq 7
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

# PCI Ethernet NICs.
#device         de              # DEC/Intel DC21x4x (``Tulip'')
device          em              # Intel PRO/1000 adapter Gigabit 
Ethernet Card (``Wiseman'')
#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         dc              # DEC/Intel 21143 and various workalikes
device          fxp             # Intel EtherExpress PRO/100B (82557, 82558)
#device         pcn             # AMD Am79C97x PCI 10/100 NICs
#device         rl              # RealTek 8129/8139
#device         sf              # Adaptec AIC-6915 (``Starfire'')
#device         sis             # Silicon Integrated Systems SiS 900/SiS 
7016
#device         ste             # Sundance ST201 (D-Link DFE-550TX)
#device         tl              # Texas Instruments ThunderLAN
#device         tx              # SMC EtherPower II (83c170 ``EPIC'')
#device         vr              # VIA Rhine, Rhine II
#device         wb              # Winbond W89C840F
#device         xl              # 3Com 3c90x (``Boomerang'', ``Cyclone'')
#device         bge             # Broadcom BCM570x (``Tigon III'')

# ISA Ethernet NICs.
# 'device ed' requires 'device miibus'
#device         ed0     at isa? disable port 0x280 irq 10 iomem 0xd8000
#device         ex
#device         ep
#device         fe0     at isa? disable port 0x300
# Xircom Ethernet
#device         xe
# PRISM I IEEE 802.11b wireless NIC.
device          awi
# WaveLAN/IEEE 802.11 wireless NICs. Note: the WaveLAN/IEEE really
# exists only as a PCMCIA device, so there is no ISA attachment needed
# and resources will always be dynamically assigned by the pccard code.
device          wi
# Aironet 4500/4800 802.11 wireless NICs. Note: the declaration below will
# work for PCMCIA and PCI cards, as well as ISA cards set to ISA PnP
# mode (the factory default). If you set the switches on your ISA
# card for a manually chosen I/O address and IRQ, you must specify
# those parameters here.
device          an
# The probe order of these is presently determined by i386/isa/isa_compat.c.
device          ie0     at isa? disable port 0x300 irq 10 iomem 0xd0000
#device         le0     at isa? disable port 0x300 irq 5 iomem 0xd0000
device          lnc0    at isa? disable port 0x280 irq 10 drq 0
device          cs0     at isa? disable port 0x300
device          sn0     at isa? disable port 0x300 irq 10

# Pseudo devices - the number indicates how many units to allocate.
pseudo-device   loop            # Network loopback
pseudo-device   ether           # Ethernet support
pseudo-device   sl      1       # Kernel SLIP
pseudo-device   ppp     1       # Kernel PPP
pseudo-device   tun             # Packet tunnel.
pseudo-device   pty             # Pseudo-ttys (telnet etc)
pseudo-device   md              # Memory "disks"
pseudo-device   gif             # IPv6 and IPv4 tunneling
pseudo-device   faith   1       # IPv6-to-IPv4 relaying (translation)

# The `bpf' pseudo-device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
pseudo-device   bpf     100     #Berkeley packet filter

# USB support
device          uhci            # UHCI PCI->USB interface
device          ohci            # OHCI PCI->USB interface
device          usb             # USB Bus (required)
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          uscanner        # Scanners
#device         urio            # Diamond Rio MP3 Player
# USB Ethernet, requires mii
#device         aue             # ADMtek USB ethernet
#device         axe             # ASIX Electronics USB ethernet
#device         cue             # CATC USB ethernet
#device         kue             # Kawasaki LSI 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!)

device          pcm
options         QUOTA

options         USER_LDT

#options        BRIDGE

#options         IPFIREWALL                    #firewall
#options         IPFIREWALL_VERBOSE            #enable logging to syslogd(8)
#options        IPFIREWALL_FORWARD            #enable transparent proxy 
support
#options         IPFIREWALL_VERBOSE_LIMIT=100  #limit verbosity
#options        IPFIREWALL_DEFAULT_TO_ALLOW   #block everything by default
#options        IPDIVERT                      #divert sockets

#options         TCP_DROP_SYNFIN

#options         RANDOM_IP_ID                 # RANDOM_IP_ID causes the 
ID field in IP packets to be randomized
=========
-- 



Med vänliga hälsningar

Stefan Midjich aka nocturnal
[Swehack] http://swehack.se



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