kern/87596: [panic] OS crash on a Firefox link click (FreeBSD 6.0-RC1, kernel with options)

Tue Oct 18 18:48:38 PDT 2005

Let me know if more information is desirable -- thanks!

(I am assuming that cc:ing freebsd-bugs at freebsd.org is a good idea --
let me know if I this is not so.)

---------------------------------------------------------------------
kgdb kernel.debug /var/crash/vmcore.0
[GDB will not be able to debug user-mode threads:
/usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 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-marcel-freebsd".

Unread portion of the kernel message buffer:

Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x1c
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc063711f
stack pointer           = 0x28:0xdaa64c1c
frame pointer           = 0x28:0xdaa64c24
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         = 712 (firefox-bin)
trap number             = 12
panic: page fault
Uptime: 10h18m38s
Dumping 511 MB (2 chunks)
  chunk 0: 1MB (159 pages) ... ok
  chunk 1: 511MB (130800 pages) 495 479 463 447 431 (CTRL-C to abort) 
(CTRL-C to abort)  (CTRL-C to abort)  415 399 383 367 351 335 319 303
287 271 255 239 223 207 191 175 159 (CTRL-C to abort)  143 (CTRL-C to
abort)  (CTRL-C to abort)  (CTRL-C to abort)  (CTRL-C to abort) 
(CTRL-C to abort)  127 (CTRL-C to abort)  111 95 (CTRL-C to abort) 
(CTRL-C to abort)  (CTRL-C to abort)  79 63 47 31 15

#0  doadump () at pcpu.h:165
165             __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) bt
#0  doadump () at pcpu.h:165
#1  0xc0637ffa in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:399
#2  0xc0638290 in panic (fmt=0xc084e142 "%s") at
/usr/src/sys/kern/kern_shutdown.c:555
#3  0xc08077f0 in trap_fatal (frame=0xdaa64bdc, eva=28) at
/usr/src/sys/i386/i386/trap.c:831
#4  0xc080755b in trap_pfault (frame=0xdaa64bdc, usermode=0, eva=28)
at /usr/src/sys/i386/i386/trap.c:742
#5  0xc0807199 in trap (frame=
      {tf_fs = -1037959160, tf_es = -626655192, tf_ds = -1067188184,
tf_edi = -1037895808, tf_esi = 0, tf_ebp = -626635740, tf_isp =
-626635768, tf_ebx = 0, tf_edx = -1047044096, tf_ecx = -1037895808,
tf_eax = 0, tf_trapno = 12, tf_err = 0, tf_eip = -1067224801, tf_cs =
32, tf_eflags = 66178, tf_esp = -1040612096, tf_ss = 0})
    at /usr/src/sys/i386/i386/trap.c:432
#6  0xc07f699a in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7  0xc063711f in uihold (uip=0x0) at pcpu.h:165
#8  0xc0634ebd in crcopy (dest=0xc1f98500, src=0xc1f98500) at
/usr/src/sys/kern/kern_prot.c:1930
#9  0xc0634efc in crdup (cr=0xc1f98500) at /usr/src/sys/kern/kern_prot.c:1949
#10 0xc0693c87 in kern_access (td=0xc222f780, path=0x0,
pathseg=UIO_USERSPACE, flags=0)
    at /usr/src/sys/kern/vfs_syscalls.c:1874
#11 0xc0693c69 in access (td=0xc222f780, uap=0x0) at
/usr/src/sys/kern/vfs_syscalls.c:1856
#12 0xc0807b07 in syscall (frame=
      {tf_fs = 134611003, tf_es = 134676539, tf_ds = -1078001605,
tf_edi = 142274816, tf_esi = 150592228, tf_ebp = -1077944312, tf_isp =
-626635420, tf_ebx = 672962600, tf_edx = 142274816, tf_ecx =
155745584, tf_eax = 33, tf_trapno = 22, tf_err = 2, tf_eip =
679314647, tf_cs = 51, tf_eflags = 658, tf_esp = -1077944340, tf_ss =
59})
    at /usr/src/sys/i386/i386/trap.c:976
#13 0xc07f69ef in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:200
#14 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
----------------------------------------------------------------------------------

On 10/18/05, Gleb Smirnoff <glebius at freebsd.org> wrote:
> Synopsis: [panic] OS crash on a Firefox link click (FreeBSD 6.0-RC1, kernel with options)
>
> State-Changed-From-To: open->feedback
> State-Changed-By: glebius
> State-Changed-When: Tue Oct 18 11:20:29 GMT 2005
> State-Changed-Why:
> Please obtain kernel stack backtrace from your core, like it
> is described here:
>
>   http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-gdb.html
>
> http://www.freebsd.org/cgi/query-pr.cgi?pr=87596
>

--
-- Alex -- goncharov.alex at gmail.com ---