Date: Wed, 2 Aug 2006 08:33:58 -0500 From: ejc <eric.j.christeson@gmail.com> To: "John Baldwin" <john@baldwin.cx> Cc: freebsd-stable@freebsd.org Subject: Re: ncplogin panic Message-ID: <7e3339060608020633q73f19f05x83c7a6b526e91bd7@mail.gmail.com> In-Reply-To: <7e3339060608020617m183022a7l8f4aeb07efa61800@mail.gmail.com> References: <OF7528D9D2.2C92731A-ONC12571BD.00292BB3-C12571BD.002A2EAE@gateway-inter.net> <7e3339060608011128rd7034ebg6f7dd029a00c4f2@mail.gmail.com> <200608011515.37682.john@baldwin.cx> <7e3339060608020617m183022a7l8f4aeb07efa61800@mail.gmail.com>
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[-- Attachment #1 --]
On 8/2/06, ejc <eric.j.christeson@gmail.com> wrote:
> Backtrace with module symbols loaded. It looks almost exactly the
> same as Maik's .
I messed up that last one and loaded the local module symbols with
'kldsyms'. Here's one with 'getsyms'.
Thanks
Eric
[-- Attachment #2 --]
Script started on Wed Aug 2 08:28:06 200
ejc@chicadee$ sudo kgdb /usr/src/sys/i386/compile/DEBUG/kernel.debug /usr/core/vmcore.0
Password:
[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".
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
cpuid = 0; apic id = 00
fault virtual address = 0x0
fault code = supervisor write, page not present
instruction pointer = 0x20:0xc0507520
stack pointer = 0x28:0xc627e8dc
frame pointer = 0x28:0xc627e8e4
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 = 662 (ncplogin)
trap number = 12
panic: page fault
cpuid = 0
Uptime: 46s
Dumping 63 MB (2 chunks)
chunk 0: 1MB (159 pages) ... ok
chunk 1: 63MB (16128 pages) 48 32 16
#0 doadump () at pcpu.h:165
165 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb) source /tmp/kgdb.asf.1243
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/ncp/ncp.ko.debug" at
.text_addr = 0xc072be40
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/libmchain/libmchain.ko.debug" at
.text_addr = 0xc073460c
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/nwfs/nwfs.ko.debug" at
.text_addr = 0xc0739698
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/acpi/acpi/acpi.ko.debug" at
.text_addr = 0xc0752de0
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/linprocfs/linprocfs.ko.debug" at
.text_addr = 0xc138c254
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/linux/linux.ko.debug" at
.text_addr = 0xc1396b14
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/ipfw/ipfw.ko.debug" at
.text_addr = 0xc1615704
(kgdb) getsyms
During symbol reading, Incomplete CFI data; unspecified registers at 0xc04e2109.
Id Refs Address Size Name
1 14 0xc0400000 329570 kernel
2 2 0xc072a000 99b0 ncp.ko
3 3 0xc0734000 28b4 libmchain.ko
4 1 0xc0737000 a988 nwfs.ko
5 1 0xc0742000 5984c acpi.ko
6 1 0xc138a000 6000 linprocfs.ko
7 1 0xc1390000 16000 linux.ko
8 1 0xc1612000 b000 ipfw.ko
Select the list above with the mouse, paste into the screen
and then press ^D. Yes, this is annoying.
1 14 0xc0400000 329570 kernel
2 2 0xc072a000 99b0 ncp.ko
3 3 0xc0734000 28b4 libmchain.ko
4 1 0xc0737000 a988 nwfs.ko
5 1 0xc0742000 5984c acpi.ko
6 1 0xc138a000 6000 linprocfs.ko
7 1 0xc1390000 16000 linux.ko
8 1 0xc1612000 b000 ipfw.ko
^Dadd symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/acpi/acpi/acpi.ko.debug" at
.text_addr = 0xc0752de0
.data_addr = 0xc07861a0
.bss_addr = 0xc07884e0
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/ipfw/ipfw.ko.debug" at
.text_addr = 0xc1615704
.data_addr = 0xc161c000
.bss_addr = 0xc161c680
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/libmchain/libmchain.ko.debug" at
.text_addr = 0xc073460c
.data_addr = 0xc07360b8
.bss_addr = 0xc0736150
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/linprocfs/linprocfs.ko.debug" at
.text_addr = 0xc138c254
.data_addr = 0xc138f740
.bss_addr = 0xc138f9e4
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/linux/linux.ko.debug" at
.text_addr = 0xc1396b14
.data_addr = 0xc13a4000
.bss_addr = 0xc13a56c0
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/ncp/ncp.ko.debug" at
.text_addr = 0xc072be40
.data_addr = 0xc0731280
.bss_addr = 0xc0731b80
add symbol table from file "/usr/src/sys/i386/compile/DEBUG/modules/usr/src/sys/modules/nwfs/nwfs.ko.debug" at
.text_addr = 0xc0739698
.data_addr = 0xc073f440
.bss_addr = 0xc073f960
(kgdb) l *0xc0507520
0xc0507520 is in selrecord (../../../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 == NULL) {
1104 sip->si_thread = selector;
1105 TAILQ_INSERT_TAIL(&selector->td_selq, sip, si_thrlist);
1106 } else if (sip->si_thread != selector) {
1107 sip->si_flags |= SI_COLL;
1108 }
1109
(kgdb) bt
#0 doadump () at pcpu.h:165
During symbol reading, Incomplete CFI data; unspecified registers at 0xc04e2109.
#1 0xc04e2676 in boot (howto=0x104) at ../../../kern/kern_shutdown.c:409
#2 0xc04e299d in panic (fmt=0xc0629280 "%s") at ../../../kern/kern_shutdown.c:565
#3 0xc0610ca4 in trap_fatal (frame=0xc627e89c, eva=0x0) at ../../../i386/i386/trap.c:836
#4 0xc06109e3 in trap_pfault (frame=0xc627e89c, usermode=0x0, eva=0x0) at ../../../i386/i386/trap.c:744
#5 0xc061063d in trap (frame=
{tf_fs = 0x906a0008, tf_es = 0xecc40028, tf_ds = 0x28, tf_edi = 0x0, tf_esi = 0xc174d000, tf_ebp = 0xc627e8e4, tf_isp = 0xc627e8c8, tf_ebx = 0xc17755e0, tf_edx = 0xc174d000, tf_ecx = 0xc1775590, tf_eax = 0x0, tf_trapno = 0xc, tf_err = 0x2, tf_eip = 0xc0507520, tf_cs = 0x20, tf_eflags = 0x10246, tf_esp = 0xc1775590, tf_ss = 0x1})
at ../../../i386/i386/trap.c:434
#6 0xc05fd1aa in calltrap () at ../../../i386/i386/exception.s:139
#7 0xc0507520 in selrecord (selector=0xc174d000, sip=0xc17755e0) at ../../../kern/sys_generic.c:1105
#8 0xc051eed7 in sopoll (so=0xc1775590, events=0x1, active_cred=0x0, td=0xc174d000)
at ../../../kern/uipc_socket.c:2059
#9 0xc072cde5 in ncp_poll (so=0xc1775590, events=0x1) at /usr/src/sys/modules/ncp/../../netncp/ncp_sock.c:192
#10 0xc072f74a in ncp_request_int (rqp=0xc1490480) at /usr/src/sys/modules/ncp/../../netncp/ncp_rq.c:270
#11 0xc072d5ee in ncp_ncp_connect (conn=0xc1626100) at /usr/src/sys/modules/ncp/../../netncp/ncp_ncp.c:122
#12 0xc072c456 in ncp_conn_reconnect (ncp=0xc1626100) at /usr/src/sys/modules/ncp/../../netncp/ncp_conn.c:333
#13 0xc072ea57 in ncp_ioctl (dev=0xc121b900, cmd=0x0, data=0xc12a00f0 "\200쿿\020쿿", flag=0x3, td=0xc174d000)
at /usr/src/sys/modules/ncp/../../netncp/ncp_mod.c:121
#14 0xc04b86d6 in giant_ioctl (dev=0xc121b900, cmd=0x80084e64, data=0xc12a00f0 "\200쿿\020쿿", fflag=0x3,
td=0xc174d000) at ../../../kern/kern_conf.c:288
#15 0xc049615f in devfs_ioctl_f (fp=0xc12baa68, com=0x80084e64, data=0xc12a00f0, cred=0xc176b780, td=0xc174d000)
at ../../../fs/devfs/devfs_vnops.c:407
#16 0xc05061dd in ioctl (td=0xc174d000, uap=0xc627ed04) at file.h:264
#17 0xc0610feb in syscall (frame=
{tf_fs = 0x3b, tf_es = 0x3b, tf_ds = 0x3b, tf_edi = 0xbfbfed50, tf_esi = 0xbfbfed30, tf_ebp = 0xbfbfebe8, tf_isp = 0xc627ed64, tf_ebx = 0x28089790, tf_edx = 0xffffffff, tf_ecx = 0x28168e00, tf_eax = 0x36, tf_trapno = 0xc, tf_err = 0x2, tf_eip = 0x28159d5f, tf_cs = 0x33, tf_eflags = 0x292, tf_esp = 0xbfbfebac, tf_ss = 0x3b})
at ../../../i386/i386/trap.c:981
#18 0xc05fd1ff in Xint0x80_syscall () at ../../../i386/i386/exception.s:200
#19 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) ejc@chicadee$ ^D
Script done on Wed Aug 2 08:29:22 200
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