From owner-freebsd-questions Thu Mar 27 12:36:17 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id MAA19510 for questions-outgoing; Thu, 27 Mar 1997 12:36:17 -0800 (PST) Received: from mail1.sirius.com (mail1.sirius.com [205.134.253.131]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id MAA19505 for ; Thu, 27 Mar 1997 12:36:15 -0800 (PST) Received: from ds9.sirius.com (ds9.sirius.com [205.134.226.34]) by mail1.sirius.com (8.6.12/960710) with ESMTP id MAA21068 for ; Thu, 27 Mar 1997 12:33:20 -0800 Received: from localhost (dlowe@localhost) by ds9.sirius.com (8.6.12/961127) with SMTP id MAA02084 for ; Thu, 27 Mar 1997 12:36:11 -0800 X-Authentication-Warning: ds9.sirius.com: dlowe owned process doing -bs Date: Thu, 27 Mar 1997 12:36:07 -0800 (PST) From: David Lowe X-Sender: dlowe@ds9 Reply-To: David Lowe To: questions@freebsd.org Subject: Fatal double fault... Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk 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