Date: Wed, 29 Sep 1999 09:51:49 -0700 (PDT) From: Alfred Perlstein <bright@wintelcom.net> To: Vallo Kallaste <vallo@matti.ee> Cc: freebsd-current@FreeBSD.ORG Subject: Re: Repeatable panic in current, cause Netscape Message-ID: <Pine.BSF.4.05.9909290948400.6368-100000@fw.wintelcom.net> In-Reply-To: <19990929112518.A484@myhakas.matti.ee>
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On Wed, 29 Sep 1999, Vallo Kallaste wrote:
> Hello
>
> The latest -current system crashes while starting up Netscape, mine
> version is 4.61, Linux one. It's fully repeatable in my case. I got
> crash dump and here's my dmesg and gdb trace:
>
> Copyright (c) 1992-1999 The FreeBSD Project.
> Copyright (c) 1982, 1986, 1989, 1991, 1993
> The Regents of the University of California. All rights reserved.
...
excellent, using kgbd, can you please type "up" until you hit
frame 5 and print the value of the ndp and some of the other
variables? A listing of the code at that location would also
be great. ('list')
thanks,
-Alfred Perlstein - [bright@rush.net|alfred@freebsd.org]
Wintelcom systems administrator and programmer
- http://www.wintelcom.net/ [bright@wintelcom.net]
>
> Script started on Wed Sep 29 11:07:23 1999
> myhakas# gdb -k /sys/compile/Myhakas/kernel.debug vmcore.1
> 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"...
> SMP 2 cpus
> IdlePTD 3211264
> initial pcb at 298e00
> panicstr: page fault
> panic messages:
> ---
> Fatal trap 12: page fault while in kernel mode
> mp_lock = 01000002; cpuid = 1; lapic.id = 01000000
> fault virtual address = 0x17
> fault code = supervisor read, page not present
> instruction pointer = 0x8:0xc017ad2c
> stack pointer = 0x10:0xc8e5fca0
> frame pointer = 0x10:0xc8e5fcf0
> 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 = 666 (netscape)
> interrupt mask = none <- SMP: XXX
> trap number = 12
> panic: page fault
> mp_lock = 01000002; cpuid = 1; lapic.id = 01000000
> boot() called on cpu#1
>
> syncing disks... 19 5 1 done
>
> dumping to dev #da/0x20001, offset 0
> dump 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 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:281
> 281 dumppcb.pcb_cr3 = rcr3();
> (kgdb) where
> #0 boot (howto=256) at ../../kern/kern_shutdown.c:281
> #1 0xc0155349 in panic (fmt=0xc026de2f "page fault")
> at ../../kern/kern_shutdown.c:531
> #2 0xc0236400 in trap_fatal (frame=0xc8e5fc60, eva=23)
> at ../../i386/i386/trap.c:907
> #3 0xc0236071 in trap_pfault (frame=0xc8e5fc60, usermode=0, eva=23)
> at ../../i386/i386/trap.c:800
> #4 0xc0235ce7 in trap (frame={tf_fs = 1048600, tf_es = 16, tf_ds = 16,
> tf_edi = -924451276, tf_esi = -924451236, tf_ebp = -924451600,
> tf_isp = -924451700, tf_ebx = -1061078179, tf_edx = -924572480,
> tf_ecx = 7, tf_eax = 7, tf_trapno = 12, tf_err = 0,
> tf_eip = -1072190164, tf_cs = 8, tf_eflags = 66198,
> tf_esp = -1061078179, tf_ss = 0}) at ../../i386/i386/trap.c:426
> #5 0xc017ad2c in namei (ndp=0xc8e5fe34) at ../../kern/vfs_lookup.c:91
> #6 0xc0c12eb5 in ?? ()
> #7 0xc0c11c55 in ?? ()
> #8 0xc0236642 in syscall (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
> tf_edi = 677678720, tf_esi = 677674201, tf_ebp = -1077946400,
> tf_isp = -924450860, tf_ebx = 677674201, tf_edx = -1077946464,
> tf_ecx = -1077946464, tf_eax = 106, tf_trapno = 12, tf_err = 2,
> tf_eip = 677666503, tf_cs = 31, tf_eflags = 582, tf_esp = -1077946504,
> tf_ss = 47}) at ../../i386/i386/trap.c:1056
> #9 0xc02241b1 in Xint0x80_syscall ()
> #10 0x28644564 in ?? ()
> (kgdb) quit
> myhakas# exit
> exit
>
> The same Netscape and X did work for last 3 weeks. The same Netscape did
> work for at least last 2 months. I see it's a known problem accordingly
> to lists.
>
> Thanks
> --
>
> Vallo Kallaste
> vallo@matti.ee
>
>
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