Date: Sat, 6 Apr 1996 19:40:04 -0800 (PST) From: Chi-Kuo Gregory Wang <ckwang@umich.edu> To: "Jordan K. Hubbard" <jkh@time.cdrom.com> Cc: Chi-Kuo Wang <ckwang@umich.edu> Subject: Re: core dump on Netscape. Message-ID: <Pine.BSF.3.91.960406193439.364A-100000@azure.engin.umich.edu> Resent-Message-ID: <9426.828848763@time.cdrom.com> In-Reply-To: <8492.828836526@time.cdrom.com>
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Hi, I am running FreeBSD 2.1 with linux_emulator. However, I get floating exception and core dump frequently while my netscape-2.01 connect to http://www.netscape.com until 12% done. Sometimes, I wrote a short c++ program and compiled it by g++ -g, when I run it, I got floating exception and core dump, too. If I use gdb to view it, I got Program received signal SIGFPE, Arithmetic exception. 0x8193aa7 in ldexp () and that error occurs earlier than the first line of executable C code. I wonder if something wrong in my ld, or kernel? Thanks a lot. Greg. 4/6/96 The following is the system info of my computer: ---------------------------------------------------------------------- CPU: Intel Pentium 100Mhz uname -a -------------------------------------------------------------------- (FreeBSD azure.engin.umich.edu 2.1.0-RELEASE FreeBSD 2.1.0-RELEASE #0: Sat Jan 20 13:23:26 PST 1996 root@azure.engin.umich.edu:/usr/src/sys/compile/AZURE i386) modstat ----------------------------------------------------------------- Type Id Off Loadaddr Size Info Rev Module Name MISC 0 0 f0aa1000 0008 f0aa2000 1 snake_saver EXEC 1 2 f0aa8000 0018 f0aad000 1 linux_emulator ------------ The configuration file of my Kernel -------------------- # # GENERIC -- Generic machine with WD/AHx/NCR/BTx family disks # # GENERIC,v 1.45.2.3 1995/06/05 21:50:41 jkh Exp # machine "i386" #cpu "I386_CPU" #cpu "I486_CPU" cpu "I586_CPU" ident AZURE maxusers 10 #options MATH_EMULATE #Support for x87 emulation options INET #InterNETworking options FFS #Berkeley Fast Filesystem options NFS #Network Filesystem options MSDOSFS #MSDOS Filesystem options "CD9660" #ISO 9660 Filesystem options PROCFS #Process filesystem options "COMPAT_LINUX" options "USER_LDT" options SYSVSHM options "COMPAT_43" #Compatible with BSD 4.3 #options "SCSI_DELAY=15" #Be pessimistic about Joe SCSI device options BOUNCE_BUFFERS #include support for DMA bounce buffers options UCONSOLE #Allow users to grab the console options QUOTA config kernel root on wd1 controller isa0 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 wcd0 controller wdc1 at isa? port "IO_WD2" bio irq 15 vector wdintr options ATAPI disk wd2 at wdc1 drive 0 disk wd3 at wdc1 drive 1 #controller ncr0 #controller ahc0 #controller bt0 at isa? port "IO_BT0" bio irq ? vector btintr #controller uha0 at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr #controller ahc1 at isa? bio irq ? vector ahcintr #controller ahb0 at isa? bio irq ? vector ahbintr #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 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 #device mcd1 at isa? port 0x340 bio irq 11 vector mcdintr #controller matcd0 at isa? port ? bio #device scd0 at isa? port 0x230 bio # syscons is the default console driver, resembling an SCO console device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr # Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver #device vt0 at isa? port "IO_KBD" tty irq 1 vector pcrint #options "PCVT_FREEBSD=210" # pcvt running on FreeBSD 2.1 #options XSERVER # include code for XFree86 device npx0 at isa? port "IO_NPX" irq 13 vector npxintr 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? port "IO_COM3" tty irq 5 vector siointr device sio3 at isa? 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 lpt2 at isa? port? tty # Order is important here due to intrusive probes, do *not* alphabetize # this list of network interfaces until the probes have been fixed. # Right now it appears that the ie0 must be probed before ep0. See # revision 1.20 of this file. #device de0 #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 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 lnc1 at isa? port 0x300 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 controller snd0 device sb0 at isa? port 0x220 irq 5 conflicts drq 1 vector sbintr device sbxvi0 at isa? drq 5 device sbmidi0 at isa? port 0x330 device opl00 at isa? port 0x388 conflicts 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 16 pseudo-device bpfilter 4 #pseudo-device gzip # Exec gzipped a.out's ------------------------------------------------------------------------- On Sat, 6 Apr 1996, Jordan K. Hubbard wrote: > I doubt that it is any of those things. However, you tell me nothing > about your processor or whether or not you're running a custom kernel, > so I can't say any more than this. > > Jordan > > > Hi, > > > > I am running FreeBSD 2.1 distribution. I always get a > > 'Floating exception' core dump while netscape (no matter 2.01, or > > 3.0b2) try to connect to its homepage (http://www.netscape.com) if the > > traffic is busy. If the traffic is not busy, then it runs well. > > It never happened before. I wonder if that's because I also run > > Linux compatible module (modload -e linux_init /lkm/linux_mod.o) > > Is it possibe that something wrong in my network (ppp connection)? > > > > Thanks a lot for your help. > > > > Greg. 4/6/96 > > ----------------------------------------------------------------------------- > > Wang, Chi-Kuo (Gregory) IOE Department Univ. of > > Michigan > > ----------------------------------------------------------------------------- > > Address: 4707 24th Ave NE #233 Tel : (206) 525-3962 > > Seattle, WA 98105 E-mail : ckwang@umich.edu > > ----------------------------------------------------------------------------- > > www: http://www-personal.umich.edu/~ckwang > >
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