Date: Thu, 27 Mar 1997 12:36:07 -0800 (PST) From: David Lowe <dlowe@sirius.com> To: questions@freebsd.org Subject: Fatal double fault... Message-ID: <Pine.NXT.3.95q.970327122010.2079A-100000@ds9>
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Answer people -
I've got a new Pentium Pro 150, 64MB RAM, running FreeBSD 2.2.1. The
machine was running 2.2.0 for about a day, and seemed to be solid. I
cvsupped 2.2.1 yesterday, built a new kernel, and ran make world before I
left yesterday. This morning, the machine was hosed (it had apparently
rebooted at least once overnight, and was totally hung when I got here).
I built a new kernel with DDB enabled, and played around with it for a
while, but was unable to cause a crash. It was when I came back to it
after leaving for a few minutes (about 10 or 15, i think) that it was
down.
I've been able to duplicate this several times now - leave the machine
alone for 10-15 minutes, and...
Fatal double fault:
eip = 0xf01bc45c
esp = 0xefbfe000
ebp = 0xefbfe058
panic: double fault
Debugger("panic")
[now it's completely hung, needs to be rebooted...]
Does this point to some unhandled power management feature, since it only
seems to happen when the machine is idling? Bad RAM? Screwy BIOS things?
This is the first time I've used a PPro - any quirks I should know about?
Thanks a lot,
David Lowe
--- uname -a -------------------------------------------------------------
FreeBSD foo.sirius.com 2.2.1-RELEASE FreeBSD 2.2.1-RELEASE #0: Thu Mar 27
02:16:20 PST 1997 root@foo.sirius.com:/usr/src/sys/compile/DIJON i386
--- cat /kernel | grep '^___' | sed 's/^___//' ---------------------------
machine "i386"
cpu "I686_CPU" # aka Pentium(tm)
ident KETCHUP
config kernel root on sd0 dumps on sd0
maxusers 64
options "COMPAT_43"
options "DFLDSIZ=(256*1024*1024)"
options "MAXDSIZ=(256*1024*1024)"
options "MD5"
options "TCP_COMPAT_42" #emulate 4.2BSD TCP bugs
options BOUNCE_BUFFERS
options CHILD_MAX=256
#options COMCONSOLE #prefer serial console to video console
options DDB
options FFS #Fast filesystem
options FAILSAFE
options GPL_MATH_EMULATE #Support for x87 emulation via
options INET #Internet communications protocols
options KTRACE
options MAXCONS=16 # number of virtual consoles
options NBUF=2048
options NFS #Network File System
options NMBCLUSTERS=2048
options OPEN_MAX=1024
options PERFMON
options QUOTA #enable disk quotas
options "SHMMAXPGS=4096" #increase size of shared pages
options SYSVMSG
options SYSVSEM
options SYSVSHM
options UCONSOLE
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
options INCLUDE_CONFIG_FILE # Include this file in kernel
options IPFIREWALL #firewall
pseudo-device ether
pseudo-device loop
pseudo-device bpfilter 4
pseudo-device pty 32
pseudo-device speaker
pseudo-device log
pseudo-device gzip
pseudo-device ccd 2
controller pci0
device de0
controller ahc1
controller scbus0 #base SCSI code
device ch0 #SCSI media changers
device sd0 #SCSI disks
device st0 #SCSI tapes
device cd0 #SCSI CD-ROMs
device od0 #SCSI optical disk
controller isa0
device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
device npx0 at isa? port "IO_NPX" iosiz 0x0 flags 0x0 irq 13 vector npxintr
device lpt0 at isa? port? tty irq 7 vector lptintr
device lpt1 at isa? port "IO_LPT3" tty irq 5 vector lptintr
device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
disk fd0 at fdc0 drive 0
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