Date: Wed, 2 Aug 2006 10:08:35 +0200 From: m.ehinger@ltur.de To: freebsd-stable@freebsd.org Cc: John Baldwin <john@baldwin.cx> Subject: Re: ncplogin panic [backtrace with module symbols loaded] Message-ID: <OFA573AA94.E6741B95-ONC12571BE.002C066F-C12571BE.002CC00E@gateway-inter.net> In-Reply-To: <200608011515.37682.john@baldwin.cx>
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Hi,
here is mine backtrace with module symbols loaded.
Thanks,
Maik
Kernel Source: /usr/obj/usr/src/sys/GENERIC
Getting KLD information and locations...
Traceback (most recent call last):
File "kld_deb.py", line 139, in ?
a =3D int(j[5], 16)
ValueError: invalid literal for int(): file
source /tmp/kgdb.asf.6179
[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 yo=
u are
welcome to change it and/or distribute copies of it under certain condi=
tions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for deta=
ils.
This GDB was configured as "i386-marcel-freebsd".
Ready to go. Enter 'tr' to connect to the remote target
with /dev/cuad0, 'tr /dev/cuad1' to connect to a different port
or 'trf portno' to connect to the remote target with the firewire
interface. portno defaults to 5556.
Type 'getsyms' after connection to load kld symbols.
If you're debugging a local system, you can use 'kldsyms' instead
to load the kld symbols. That's a less obnoxious interface.
Unread portion of the kernel message buffer:
Fatal trap 12: page fault while in kernel mode
fault virtual address =3D 0x0
fault code =3D supervisor write, page not present
instruction pointer =3D 0x20:0xc068a3fc
stack pointer =3D 0x28:0xdcebc8dc
frame pointer =3D 0x28:0xdcebc8e4
code segment =3D base 0x0, limit 0xfffff, type =
0x1b
=3D DPL 0, pres 1, def32 1, gran 1=
processor eflags =3D interrupt enabled, resume, IOPL =3D 0
current process =3D 772 (ncplogin)
trap number =3D 12
panic: page fault
Uptime: 16m46s
Dumping 494 MB (2 chunks)
chunk 0: 1MB (159 pages) ... ok
chunk 1: 495MB (126511 pages) 479 463 447 431 415 399 383 367 351 335=
319 303 287 271 255 239 223 207 191 175 159 143 127 111 95
79 63 47 31 15
#0 doadump () at pcpu.h:165
165 __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td=
));
(kgdb) getsm=08 =08yms
During symbol reading, Incomplete CFI data; unspecified registers at 0x=
c0666959.
Id Refs Address Size Name
1 18 0xc0400000 6e15d0 kernel
2 1 0xc0ae2000 5f60 snd_ich.ko
3 2 0xc0ae8000 22b88 sound.ko
4 2 0xc0b0b000 fd68 drm.ko
5 1 0xc0b1b000 615c i915.ko
6 1 0xc0b22000 5984c acpi.ko
7 1 0xc3574000 16000 linux.ko
8 1 0xc369b000 4000 logo_saver.ko
9 1 0xc3816000 8000 ncp.ko
10 1 0xc381e000 3000 libmchain.ko
Select the list above with the mouse, paste into the screen
and then press ^D. Yes, this is annoying.
1 18 0xc0400000 6e15d0 kernel
2 1 0xc0ae2000 5f60 snd_ich.ko
3 2 0xc0ae8000 22b88 sound.ko
4 2 0xc0b0b000 fd68 drm.ko
5 1 0xc0b1b000 615c i915.ko
6 1 0xc0b22000 5984c acpi.ko
7 1 0xc3574000 16000 linux.ko
8 1 0xc369b000 4000 logo_saver.ko
9 1 0xc3816000 8000 ncp.ko
10 1 0xc381e000 3000 libmchain.ko
^D=08=08add symbol table from file "/usr/obj/usr/src/sys/GENERIC/module=
s/usr/src/sys/modules/acpi/acpi/acpi.ko.debug" at
.text_addr =3D 0xc0b32de0
.data_addr =3D 0xc0b661a0
.bss_addr =3D 0xc0b684e0
add symbol table from file "/usr/obj/usr/src/sys/GENERIC/modules/usr/sr=
c/sys/modules/drm/drm/drm.ko.debug" at
.text_addr =3D 0xc0b0e68c
.data_addr =3D 0xc0b18100
.bss_addr =3D 0xc0b18b24
add symbol table from file "/usr/obj/usr/src/sys/GENERIC/modules/usr/sr=
c/sys/modules/drm/i915/i915.ko.debug" at
.text_addr =3D 0xc0b1c1b4
.data_addr =3D 0xc0b1fd80
.bss_addr =3D 0xc0b1fff4
add symbol table from file "/usr/obj/usr/src/sys/GENERIC/modules/usr/sr=
c/sys/modules/libmchain/libmchain.ko.debug" at
.text_addr =3D 0xc381e60c
.data_addr =3D 0xc38200b8
.bss_addr =3D 0xc3820150
add symbol table from file "/usr/obj/usr/src/sys/GENERIC/modules/usr/sr=
c/sys/modules/linux/linux.ko.debug" at
.text_addr =3D 0xc357ab44
.data_addr =3D 0xc3588000
.bss_addr =3D 0xc35896c0
add symbol table from file "/usr/obj/usr/src/sys/GENERIC/modules/usr/sr=
c/sys/modules/ncp/ncp.ko.debug" at
.text_addr =3D 0xc3817e40
.data_addr =3D 0xc381d280
.bss_addr =3D 0xc381db80
add symbol table from file "/usr/obj/usr/src/sys/GENERIC/modules/usr/sr=
c/sys/modules/sound/sound/sound.ko.debug" at
.text_addr =3D 0xc0af0c30
.data_addr =3D 0xc0aff4c0
.bss_addr =3D 0xc0b02d80
add symbol table from file "/usr/obj/usr/src/sys/GENERIC/modules/usr/sr=
c/sys/modules/sound/driver/ich/snd_ich.ko.debug" at
.text_addr =3D 0xc0ae3b08
.data_addr =3D 0xc0ae6960
.bss_addr =3D 0xc0ae6bdc
add symbol table from file "/usr/obj/usr/src/sys/GENERIC/modules/usr/sr=
c/sys/modules/syscons/logo/logo_saver.ko.debug" at
.text_addr =3D 0xc369b784
.data_addr =3D 0xc369cb60
.bss_addr =3D 0xc369edcc
(kgdb) whe=08 =08=08 =08=08 =08bt
#0 doadump () at pcpu.h:165
During symbol reading, Incomplete CFI data; unspecified registers at 0x=
c0666959.
#1 0xc0666e3a in boot (howto=3D0x104) at /usr/src/sys/kern/kern_shutdo=
wn.c:409
#2 0xc06670d0 in panic (fmt=3D0xc08cbf3d "%s") at /usr/src/sys/kern/ke=
rn_shutdown.c:565
#3 0xc0876534 in trap_fatal (frame=3D0xdcebc89c, eva=3D0x0) at /usr/sr=
c/sys/i386/i386/trap.c:836
#4 0xc087629b in trap_pfault (frame=3D0xdcebc89c, usermode=3D0x0, eva=3D=
0x0) at /usr/src/sys/i386/i386/trap.c:744
#5 0xc0875ed9 in trap (frame=3D
{tf_fs =3D 0x360008, tf_es =3D 0x28, tf_ds =3D 0xf6520028, tf_edi=
=3D 0x0, tf_esi =3D 0xc33f9a80, tf_ebp =3D 0xdcebc8e4, tf_isp =3D
0xdcebc8c8, tf_ebx =3D 0xc363a8a8, tf_edx =3D 0xc33f9a80, tf_ecx =3D 0x=
c363a858, tf_eax =3D 0x0, tf_trapno =3D 0xc, tf_err =3D 0x2, tf_eip =3D=
0xc068a3fc, tf_cs =3D 0x20, tf_eflags =3D 0x10246, tf_esp =3D 0xc363a85=
8, tf_ss =3D 0x1})
at /usr/src/sys/i386/i386/trap.c:434
#6 0xc086465a in calltrap () at /usr/src/sys/i386/i386/exception.s:139=
#7 0xc068a3fc in selrecord (selector=3D0xc33f9a80, sip=3D0xc363a8a8) a=
t /usr/src/sys/kern/sys_generic.c:1105
#8 0xc06a1b0f in sopoll (so=3D0xc363a858, events=3D0x1, active_cred=3D=
0x0, td=3D0xc33f9a80)
at /usr/src/sys/kern/uipc_socket.c:2059
#9 0xc3818de5 in ncp_poll (so=3D0xc363a858, events=3D0x1) at /usr/src/=
sys/modules/ncp/../../netncp/ncp_sock.c:192
#10 0xc381b74a in ncp_request_int (rqp=3D0xc3498080) at /usr/src/sys/mo=
dules/ncp/../../netncp/ncp_rq.c:270
#11 0xc38195ee in ncp_ncp_connect (conn=3D0xc37e7b00) at /usr/src/sys/m=
odules/ncp/../../netncp/ncp_ncp.c:122
#12 0xc3818456 in ncp_conn_reconnect (ncp=3D0xc37e7b00) at /usr/src/sys=
/modules/ncp/../../netncp/ncp_conn.c:333
#13 0xc381aa57 in ncp_ioctl (dev=3D0xc37e7500, cmd=3D0x0, data=3D0xc32a=
e030 "@=EC=BF=BF=E8=EB=BF=BFstrings", flag=3D0x3, td=3D0xc33f9a80)
at /usr/src/sys/modules/ncp/../../netncp/ncp_mod.c:121
#14 0xc063dd7a in giant_ioctl (dev=3D0xc37e7500, cmd=3D0x80084e64, data=
=3D0xc32ae030 "@=EC=BF=BF=E8=EB=BF=BFstrings", fflag=3D0x3,
td=3D0xc33f9a80) at /usr/src/sys/kern/kern_conf.c:288
#15 0xc061bb07 in devfs_ioctl_f (fp=3D0xc36d6000, com=3D0x80084e64, dat=
a=3D0xc32ae030, cred=3D0xc3427e00, td=3D0xc33f9a80)
at /usr/src/sys/fs/devfs/devfs_vnops.c:407
#16 0xc06891c5 in ioctl (td=3D0xc33f9a80, uap=3D0xdcebcd04) at file.h:2=
64
#17 0xc087684b in syscall (frame=3D
{tf_fs =3D 0x3b, tf_es =3D 0x3b, tf_ds =3D 0x3b, tf_edi =3D 0x3, =
tf_esi =3D 0x0, tf_ebp =3D 0xbfbfebc8, tf_isp =3D 0xdcebcd64, tf_ebx =3D=
0x28085790, tf_edx =3D 0xffffffff, tf_ecx =3D 0x28155d80, tf_eax =3D 0x=
36, tf_trapno =3D 0xc, tf_err =3D 0x2, tf_eip =3D 0x281472c3, tf_cs =3D=
0x33, tf_eflags =3D 0x212, tf_esp =3D 0xbfbfeb9c, tf_ss =3D 0x3b}) at /=
usr/src/sys/i386/i386/trap.c:981
#18 0xc08646af in Xint0x80_syscall () at /usr/src/sys/i386/i386/excepti=
on.s:200
#19 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) i=08 =08l *0xc068a3fc
0xc068a3fc is in selrecord (/usr/src/sys/kern/sys_generic.c:1105).
1100 * it alone as we've already added pointed it =
at us and added it to
1101 * our list.
1102 */
1103 if (sip->si_thread =3D=3D NULL) {
1104 sip->si_thread =3D selector;
1105 TAILQ_INSERT_TAIL(&selector->td_se=
lq, sip, si_thrlist);
1106 } else if (sip->si_thread !=3D selector) {
1107 sip->si_flags |=3D SI_COLL;
1108 }
1109
(kgdb) up 9
#9 0xc3818de5 in ncp_poll (so=3D0xc363a858, events=3D0x1) at /usr/src/=
sys/modules/ncp/../../netncp/ncp_sock.c:192
warning: Source file is more recent than executable.
192 return so->so_proto->pr_usrreqs->pru_sopoll(so, events=
, cred, td);
(kgdb)=
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