Date: Wed, 5 Nov 1997 12:34:03 -0500 From: "Gregory, Scott, SrA, SAF/AADXT" <gregorys@af.pentagon.mil> To: "'freebsd-questions@freebsd.org'" <freebsd-questions@freebsd.org> Subject: Need Help Determining Why My System Keeps Crashing Message-ID: <c=US%a=attmail%p=gov%2Bdms%2Btrans%l=DFSMTTAYZ023-971105173403Z-6348@DFDC004.HQ.AF.MIL>
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I have a web server running FreeBSD 2.2.2. I have been experiencing
random crashes and until today have not gotten any info as to why. I
caught the server before it rebooted and was able to get this
information from the console:
Nov 5 10:44:02 afpubs /kernel: Out of mbuf clusters - increase
maxusers!
Fatal Trap 12: page fault while in kernel mode
fault virtual address = 0x18
fault code = supervisor write, page not present
instruction pointer = 0x8:0xf0120f0d
stack pointer = 0x10:0xefbffecc
frame pointer = 0x10:0xefbffef0
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 = 25753 (httpd)
interrupt mask =
panic: page fault
Does this help anyone? This server is used quite heavily and I can't
have it rebooting for no reason. Luckly it has recovered without any
problems. I have included the kernel configuration file, apache
configuration file, and a hardware/software list. If anyone can assist
me in stopping this system from rebooting I would be eternally
gratefull. I am also trying to optimize the system for web servering so
if you have any suggestions on optimizing the system I would love to
have them. Please let me know I anyone needs more info.
Thanks
Scott
***********************************************
Hardware
Pentium Pro 200
128 m RAM
2940UW Controller
Intel EtherExpress 10/100 NIC
Software
FreeBSD 2.2.2
Apache 1.2.4 - able to take up to 256 concurrent clients (I have had a
peak of 198)(always running)
http-analyze 1.9 - make log file stats (run daily)
sshd - secure shell daemon (always running)
smap, smapd - mail proxy (always running)
cops - security (run daily)
tripwire - security (run daily)
samba - LM connection (always running)
I am not running X
***********************************************
Kernel Configuration File:
machine "i386"
#cpu "I386_CPU"
#cpu "I486_CPU"
#cpu "I586_CPU"
cpu "I686_CPU"
ident "AFPUBS"
maxusers 30
options "MAXMEM=98304"
options "CHILD_MAX=256"
options "OPEN_MAX=256"
options SYSVSHM
options SYSVSEM
options SYSVMSG
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
options MFS # Added by Scott. Memory Mapped
Filesystem
#options NFS #Network Filesystem
#options "CD9660" #ISO 9660 Filesystem
options PROCFS #Process filesystem
options "COMPAT_43" #Compatible with BSD 4.3 [KEEP
THIS!]
options SCSI_DELAY=10 #Be pessimistic about Joe SCSI
device
options BOUNCE_BUFFERS #include support for DMA bounce
buffers
#options UCONSOLE #Allow users to grab the
console
#options FAILSAFE #Be conservative
#options USERCONFIG #boot -c editor
#options VISUAL_USERCONFIG #visual boot -c editor
#options MSDOSFS #MSDOS Filesystem
#options MATH_EMULATE #Support for x87 emulation
config kernel root on sd0
controller isa0
controller eisa0
controller pci0
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector
fdintr
disk fd0 at fdc0 drive 0
#disk fd1 at fdc0 drive 1
#tape ft0 at fdc0 drive 2
#controller wdc0 at isa? port "IO_WD1" bio irq 14 vector wdintr
#disk wd0 at wdc0 drive 0
#disk wd1 at wdc0 drive 1
#controller wdc1 at isa? port "IO_WD2" bio irq 15 vector wdintr
# Modified by Scott for Optimization
#disk wd2 at wdc1 drive 0
#disk wd3 at wdc1 drive 1
#options ATAPI #Enable ATAPI support for IDE bus
#options ATAPI_STATIC #Don't do it as an LKM
#device wcd0 #IDE CD-ROM
# Modified by Scott for Optimization
#controller ncr0
#controller amd0
#controller ahb0
controller ahc0
#controller bt0 at isa? port "IO_BT0" bio irq ? vector
bt_isa_intr
#controller uha0 at isa? port "IO_UHA0" bio irq ? drq 5 vector
uhaintr
#controller aha0 at isa? port "IO_AHA0" bio irq ? drq 5 vector
ahaintr
#controller aic0 at isa? port 0x340 bio irq 11 vector aicintr
#controller nca0 at isa? port 0x1f88 bio irq 10 vector ncaintr
#controller nca1 at isa? port 0x350 bio irq 5 vector ncaintr
#controller sea0 at isa? bio irq 5 iomem 0xc8000 iosiz 0x2000
vector seaintr
controller scbus0
device sd0
#device od0 #See LINT for possible `od' options.
#device st0
#device cd0 #Only need one of these, the code dynamically
grows
#device wt0 at isa? port 0x300 bio irq 5 drq 1 vector wtintr
#device mcd0 at isa? port 0x300 bio irq 10 vector mcdintr
#controller matcd0 at isa? port 0x230 bio
#device scd0 at isa? port 0x230 bio
device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
#device vt0 at isa? port "IO_KBD" tty irq 1 vector pcrint
#options PCVT_FREEBSD=210 # pcvt running on
FreeBSD >= 2.0.5
#options XSERVER # include code for
XFree86
#options FAT_CURSOR # start with block
cursor
#options PCVT_SCANSET=2 # IBM keyboards are
non-std
device npx0 at isa? port "IO_NPX" irq 13 vector npxintr
#device apm0 at isa? disable # Advanced Power Management
#options APM_BROKEN_STATCLOCK # Workaround some buggy APM BIOS
#controller crd0
#device pcic0 at crd?
#device pcic1 at crd?
#device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr
#device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr
#device sio2 at isa? disable port "IO_COM3" tty irq 5 vector
siointr
#device sio3 at isa? disable port "IO_COM4" tty irq 9 vector
siointr
#device lpt0 at isa? port? tty irq 7 vector lptintr
#device lpt1 at isa? port? tty
#device mse0 at isa? port 0x23c tty irq 5 vector mseintr
#device psm0 at isa? disable port "IO_KBD" conflicts tty irq
12 vector psmintr
#device de0
device fxp0
#device vx0
#device ed0 at isa? port 0x280 net irq 5 iomem 0xd8000 vector edintr
#device ed1 at isa? port 0x300 net irq 5 iomem 0xd8000 vector edintr
#device ie0 at isa? port 0x360 net irq 7 iomem 0xd0000 vector ieintr
#device ep0 at isa? port 0x300 net irq 10 vector epintr
#device ex0 at isa? port 0x300 net irq 10 iomem 0xd0000 vector exintr
#device fe0 at isa? port 0x300 net irq ? vector feintr
#device ix0 at isa? port 0x300 net irq 10 iomem 0xd0000 iosiz 32768
vector ixintr
#device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr
#device lnc0 at isa? port 0x280 net irq 10 drq 0 vector lncintr
#device ze0 at isa? port 0x300 net irq 5 iomem 0xd8000 vector zeintr
#device zp0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zpintr
pseudo-device loop
pseudo-device ether
pseudo-device log
#pseudo-device sl 1
# ijppp uses tun instead of ppp device
#pseudo-device ppp 1
#pseudo-device tun 1
pseudo-device pty 8
pseudo-device gzip # Exec gzipped a.out's
#options KTRACE #kernel tracing # Modified by
Scott for Optimization
***********************************************
Apache Configuration File:
EXTRA_CFLAGS=
EXTRA_LFLAGS=
EXTRA_LIBS=
EXTRA_INCLUDES=
#CC=
#OPTIM=-O2
#RANLIB=
Rule STATUS=yes
Rule SOCKS4=no
Rule IRIXNIS=no
Rule WANTHSREGEX=default
Module env_module mod_env.o
# Module dld_module mod_dld.o
Module config_log_module mod_log_config.o
Module agent_log_module mod_log_agent.o
Module referer_log_module mod_log_referer.o
Module mime_module mod_mime.o
Module negotiation_module mod_negotiation.o
Module status_module mod_status.o
# Module info_module mod_info.o
Module includes_module mod_include.o
Module dir_module mod_dir.o
Module cgi_module mod_cgi.o
Module asis_module mod_asis.o
Module imap_module mod_imap.o
Module action_module mod_actions.o
Module userdir_module mod_userdir.o
# Module proxy_module modules/proxy/libproxy.a
Module alias_module mod_alias.o
Module rewrite_module mod_rewrite.o
Module access_module mod_access.o
Module auth_module mod_auth.o
# Module anon_auth_module mod_auth_anon.o
# Module db_auth_module mod_auth_db.o
# Module dbm_auth_module mod_auth_dbm.o
# Module msql_auth_module mod_auth_msql.o
# Module digest_module mod_digest.o
# Module cern_meta_module mod_cern_meta.o
Module expires_module mod_expires.o
# Module headers_module mod_headers.o
# Module usertrack_module mod_usertrack.o
# Module example_module modules/example/mod_example.o
Module browser_module mod_browser.o
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