From owner-freebsd-stable Thu Jul 22 10:49:17 1999 Delivered-To: freebsd-stable@freebsd.org Received: from ipt2.iptelecom.net.ua (ipt2.iptelecom.net.ua [212.42.68.2]) by hub.freebsd.org (Postfix) with ESMTP id A7148154CF for ; Thu, 22 Jul 1999 10:49:02 -0700 (PDT) (envelope-from sobomax@altavista.net) Received: from vega. (dialup1-25.iptelecom.net.ua [212.42.68.152]) by ipt2.iptelecom.net.ua (8.9.3/8.9.3) with ESMTP id UAA16159 for ; Thu, 22 Jul 1999 20:55:06 +0300 (EEST) Received: from altavista.net (big_brother [192.168.1.1]) by vega. (8.9.3/8.9.3) with ESMTP id UAA00421 for ; Thu, 22 Jul 1999 20:46:26 +0300 (EEST) (envelope-from sobomax@altavista.net) Message-ID: <379758F0.D234C147@altavista.net> Date: Thu, 22 Jul 1999 20:46:25 +0300 From: Maxim Sobolev Reply-To: sobomax@altavista.net Organization: Vega International Capital X-Mailer: Mozilla 4.61 [en] (WinNT; I) X-Accept-Language: ru,uk,en MIME-Version: 1.0 To: stable@freebsd.org Subject: Tun interface related panic Content-Type: text/plain; charset=koi8-r Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi folks, In order to make Real Player (G2 for Windows) work via my dial-on-demand connection to the Internet I slightly modified my ppp.conf and discovered that when I'm trying to connect to any realaudio server my old good FreeBSD box paniced with a 100% correlation (checked 3 times). This machine is a pretty old (Dell P60), but nevertheless it was stable before this incident and didn't give me any troubles since 2.2.7 release was installed there 1.5 years ago. Now it runs 3.2-STABLE, last cvsup'ed and built 5 days ago. Below you can find all relevant to this panic info. In case any other info will be necessary please let me know directly by e-mail because I'm not subscribed on the -stable list. I will wait awhile and will not delete this horrible vmcore.0 file. Sincerely, Maxim -------------------------Cut Here---------------------------- uname -a: FreeBSD vega 3.2-STABLE FreeBSD 3.2-STABLE #0: Thu Jul 22 19:44:49 EEST 1999 max@vega:/usr/src/sys/compile/VEGA i386 Following lines in the ppp.conf has actually triggered a panic: alias port udp 192.168.1.1:7070 7070 alias port udp 192.168.1.1:7071 7071 alias port udp 192.168.1.1:7080 7080 alias port udp 192.168.1.1:7081 7081 dmesg: Copyright (c) 1992-1999 FreeBSD Inc. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. FreeBSD 3.2-STABLE #0: Thu Jul 22 19:44:49 EEST 1999 max@vega:/usr/src/sys/compile/VEGA Timecounter "i8254" frequency 1193140 Hz Timecounter "TSC" frequency 59999343 Hz CPU: Pentium/P5 (60.00-MHz 586-class CPU) Origin = "GenuineIntel" Id = 0x517 Stepping = 7 Features=0x1bf real memory = 25165824 (24576K bytes) avail memory = 22208512 (21688K bytes) Preloaded elf kernel "kernel" at 0xc0275000. Probing for devices on PCI bus 0: chip0: rev 0x03 on pci0.0.0 chip1: rev 0x43 on pci0.2.0 ed1: rev 0x00 int a irq 10 on pci0.6.0 ed1: address 00:40:05:3b:1c:23, type NE2000 (16 bit) Probing for devices on the ISA bus: sc0 on isa sc0: VGA color <16 virtual consoles, flags=0x0> ed0 not found at 0x280 atkbdc0 at 0x60-0x6f on motherboard atkbd0 irq 1 on isa sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa sio0: type 16550A sio1 at 0x2f8-0x2ff irq 3 on isa sio1: type 16550A fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa fdc0: FIFO enabled, 8 bytes threshold fd0: 1.44MB 3.5in wdc0 at 0x1f0-0x1f7 irq 14 flags 0xa0ffa0ff on isa wdc0: unit 0 (wd0): , multi-block-16 wd0: 6187MB (12672450 sectors), 13410 cyls, 15 heads, 63 S/T, 512 B/S vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa npx0 on motherboard npx0: INT 16 interface Intel Pentium detected, installing workaround for F00F bug changing root device to wd0s1a ffs_mountfs: superblock updated for soft updates ffs_mountfs: superblock updated for soft updates ffs_mountfs: superblock updated for soft updates ffs_mountfs: superblock updated for soft updates Kernel config: machine "i386" cpu "I586_CPU" ident VEGA maxusers 10 options INET #InterNETworking options FFS #Berkeley Fast Filesystem options SOFTUPDATES options NFS #Network Filesystem options FFS_ROOT #FFS usable as root device [keep this!] options PROCFS #Process filesystem options "COMPAT_43" #Compatible with BSD 4.3 [KEEP THIS!] options FAILSAFE #Be conservative options NO_LKM options "CLK_USE_I8254_CALIBRATION" options NSWAPDEV=1 config kernel root on wd0 controller isa0 controller pci0 controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 disk fd0 at fdc0 drive 0 controller wdc0 at isa? port "IO_WD1" bio irq 14 flags 0xa0ffa0ff disk wd0 at wdc0 drive 0 controller atkbdc0 at isa? port IO_KBD tty device atkbd0 at isa? tty irq 1 device vga0 at isa? port ? conflicts device sc0 at isa? tty device npx0 at isa? port IO_NPX irq 13 device sio0 at isa? port "IO_COM1" flags 0x10 tty irq 4 device sio1 at isa? port "IO_COM2" tty irq 3 device ed0 at isa? port 0x280 net irq 10 iomem 0xd8000 pseudo-device loop pseudo-device ether pseudo-device bpfilter 3 pseudo-device tun 1 pseudo-device pty 5 pseudo-device gzip options SYSVSHM options SYSVSEM options SYSVMSG And of course backtrace: Script started on Thu Jul 22 20:15:56 1999 sh-2.03# gdb -k kernel.debug /usr/tmp/vmcore.0 GNU gdb 4.18 Copyright 1998 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-unknown-freebsd"... IdlePTD 2650112 initial pcb at 224484 panicstr: page fault panic messages: --- Fatal trap 12: page fault while in kernel mode fault virtual address = 0x18 fault code = supervisor write, page not present instruction pointer = 0x8:0xc01630f9 stack pointer = 0x10:0xc2d15d8c frame pointer = 0x10:0xc2d15e2c 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 = 205 (ppp) interrupt mask = trap number = 12 panic: page fault syncing disks... 1 done dumping to dev 20001, offset 139216 dump 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 --- #0 boot (howto=256) at ../../kern/kern_shutdown.c:285 285 dumppcb.pcb_cr3 = rcr3(); (kgdb) where #0 boot (howto=256) at ../../kern/kern_shutdown.c:285 #1 0xc0128034 in panic (fmt=0xc020e303 "page fault") at ../../kern/kern_shutdown.c:446 #2 0xc01ec4ba in trap_fatal (frame=0xc2d15d50, eva=24) at ../../i386/i386/trap.c:942 #3 0xc01ec16d in trap_pfault (frame=0xc2d15d50, usermode=0, eva=24) at ../../i386/i386/trap.c:835 #4 0xc01ebd2f in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -1071490428, tf_esi = 96, tf_ebp = -1026466260, tf_isp = -1026466440, tf_ebx = -1068842112, tf_edx = 0, tf_ecx = 0, tf_eax = 0, tf_trapno = 12, tf_err = 2, tf_eip = -1072287495, tf_cs = 8, tf_eflags = 66118, tf_esp = -1026805024, tf_ss = -1026466096}) at ../../i386/i386/trap.c:437 #5 0xc01630f9 in tunwrite (dev=13312, uio=0xc2d15f14, flag=1) at ../../net/if_tun.c:559 #6 0xc015d4fd in spec_write (ap=0xc2d15ed0) at ../../miscfs/specfs/spec_vnops.c:355 #7 0xc01c3c30 in ufsspec_write (ap=0xc2d15ed0) at ../../ufs/ufs/ufs_vnops.c:1845 #8 0xc01c41f5 in ufs_vnoperatespec (ap=0xc2d15ed0) at ../../ufs/ufs/ufs_vnops.c:2317 #9 0xc015716c in vn_write (fp=0xc0686100, uio=0xc2d15f14, cred=0xc04aa580, flags=0) at vnode_if.h:331 ---Type to continue, or q to quit--- #10 0xc0134571 in dofilewrite (p=0xc2cc32e0, fp=0xc0686100, fd=5, buf=0xbfbfc9dc, nbyte=0, offset=-1, flags=0) at ../../kern/sys_generic.c:363 #11 0xc013446a in write (p=0xc2cc32e0, uap=0xc2d15f94) at ../../kern/sys_generic.c:298 #12 0xc01ec6c5 in syscall (frame={tf_es = 39, tf_ds = 39, tf_edi = 134753912, tf_esi = -1077949988, tf_ebp = -1077947940, tf_isp = -1026465820, tf_ebx = 0, tf_edx = 134824520, tf_ecx = 0, tf_eax = 4, tf_trapno = 7, tf_err = 2, tf_eip = 672133576, tf_cs = 31, tf_eflags = 582, tf_esp = -1077950024, tf_ss = 39}) at ../../i386/i386/trap.c:1100 #13 0xc01e292c in Xint0x80_syscall () #14 0x80655e1 in ?? () #15 0x806547e in ?? () #16 0x806b380 in ?? () #17 0x8058329 in ?? () #18 0x804c846 in ?? () #19 0x8067aac in ?? () #20 0x80676ac in ?? () #21 0x804a92d in ?? () (kgdb) up #1 0xc0128034 in panic (fmt=0xc020e303 "page fault") at ../../kern/kern_shutdown.c:446 446 boot(bootopt); (kgdb) up #2 0xc01ec4ba in trap_fatal (frame=0xc2d15d50, eva=24) at ../../i386/i386/trap.c:942 942 panic(trap_msg[type]); (kgdb) up #3 0xc01ec16d in trap_pfault (frame=0xc2d15d50, usermode=0, eva=24) at ../../i386/i386/trap.c:835 835 trap_fatal(frame, eva); (kgdb) up #4 0xc01ebd2f in trap (frame={tf_es = 16, tf_ds = 16, tf_edi = -1071490428, tf_esi = 96, tf_ebp = -1026466260, tf_isp = -1026466440, tf_ebx = -1068842112, tf_edx = 0, tf_ecx = 0, tf_eax = 0, tf_trapno = 12, tf_err = 2, tf_eip = -1072287495, tf_cs = 8, tf_eflags = 66118, tf_esp = -1026805024, tf_ss = -1026466096}) at ../../i386/i386/trap.c:437 437 (void) trap_pfault(&frame, FALSE, eva); (kgdb) up #5 0xc01630f9 in tunwrite (dev=13312, uio=0xc2d15f14, flag=1) at ../../net/if_tun.c:559 559 top->m_pkthdr.len = tlen; (kgdb) up #6 0xc015d4fd in spec_write (ap=0xc2d15ed0) at ../../miscfs/specfs/spec_vnops.c:355 355 error = (*cdevsw[major(vp->v_rdev)]->d_write) (kgdb) up #7 0xc01c3c30 in ufsspec_write (ap=0xc2d15ed0) at ../../ufs/ufs/ufs_vnops.c:1845 1845 error = VOCALL(spec_vnodeop_p, VOFFSET(vop_write), ap); (kgdb) up #8 0xc01c41f5 in ufs_vnoperatespec (ap=0xc2d15ed0) at ../../ufs/ufs/ufs_vnops.c:2317 2317 return (VOCALL(ufs_specop_p, ap->a_desc->vdesc_offset, ap)); (kgdb) up #9 0xc015716c in vn_write (fp=0xc0686100, uio=0xc2d15f14, cred=0xc04aa580, flags=0) at vnode_if.h:331 331 return (VCALL(vp, VOFFSET(vop_write), &a)); (kgdb) up #10 0xc0134571 in dofilewrite (p=0xc2cc32e0, fp=0xc0686100, fd=5, buf=0xbfbfc9dc, nbyte=0, offset=-1, flags=0) at ../../kern/sys_generic.c:363 363 if ((error = (*fp->f_ops->fo_write)(fp, &auio, fp->f_cred, flags))) { (kgdb) up #11 0xc013446a in write (p=0xc2cc32e0, uap=0xc2d15f94) at ../../kern/sys_generic.c:298 298 return (dofilewrite(p, fp, uap->fd, uap->buf, uap->nbyte, (off_t)-1, 0)); (kgdb) up #12 0xc01ec6c5 in syscall (frame={tf_es = 39, tf_ds = 39, tf_edi = 134753912, tf_esi = -1077949988, tf_ebp = -1077947940, tf_isp = -1026465820, tf_ebx = 0, tf_edx = 134824520, tf_ecx = 0, tf_eax = 4, tf_trapno = 7, tf_err = 2, tf_eip = 672133576, tf_cs = 31, tf_eflags = 582, tf_esp = -1077950024, tf_ss = 39}) at ../../i386/i386/trap.c:1100 1100 error = (*callp->sy_call)(p, args); (kgdb) q sh-2.03# exit Script done on Thu Jul 22 20:18:34 1999 -------------------------------------The End------------------------------------ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message