Date: Mon, 23 May 2005 08:38:04 -0400 From: "Robin P. Blanchard" <robin.blanchard@gactr.uga.edu> To: "Doug White" <dwhite@gumbysoft.com> Cc: stable@freebsd.org Subject: RE: RELENG_5 panic Message-ID: <9B5C1FCAFB35084787C21EFFFA78DD9EF13698@EBE1.gc.nat>
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Here's what I could get out of dmesg, and looking again at the dump
# dmesg -M /usr/local/var/adm/crash/vmcore.44 -N /boot/kernel/kernel=20
kernel trap 12 with interrupts disabled
Fatal trap 12: page fault while in kernel mode
cpuid =3D 0; apic id =3D 00
fault virtual address =3D 0x24
fault code =3D supervisor read, page not present
instruction pointer =3D 0x8:0xc0504808
stack pointer =3D 0x10:0xc7ac0c08
frame pointer =3D 0x10:0xc7ac0c3c
code segment =3D base 0x0, limit 0xfffff, type 0x1b
=3D DPL 0, pres 1, def32 1, gran 1
processor eflags =3D resume, IOPL =3D 0
current process =3D 27 (swi5: clock sio)
trap number =3D 12
panic: page fault
cpuid =3D 0
Uptime: 3d6h59m25s
Dumping 127 MB
16 32 48 64 80 96 112
root@robinpb [/usr/obj/usr/src/sys/fastipsec]# kgdb kernel.debug
/usr/local/var/adm/crash/vmcore.44=20
[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".
#0 doadump () at pcpu.h:160
160 __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td));
(kgdb) l *0xc0504808
0xc0504808 is in turnstile_wait =
(/usr/src/sys/kern/subr_turnstile.c:245).
240 /*
241 * Pick up the lock that td is blocked on.
242 */
243 ts =3D td->td_blocked;
244 MPASS(ts !=3D NULL);
245 tc =3D TC_LOOKUP(ts->ts_lockobj);
246 mtx_lock_spin(&tc->tc_lock);
247
248 /*
249 * This thread may not be blocked on this =
turnstile
anymore
(kgdb)=20
---------------------------------------
Robin P. Blanchard
Systems Integration Specialist
Georgia Center for Continuing Education
fon: 706.542.2404 < > fax: 706.542.6546
---------------------------------------
=20
> -----Original Message-----
> From: Doug White [mailto:dwhite@gumbysoft.com]=20
> Sent: Sunday, May 22, 2005 3:20 PM
> To: Robin P. Blanchard
> Cc: stable@freebsd.org
> Subject: Re: RELENG_5 panic
>=20
> On Sat, 21 May 2005, Robin P. Blanchard wrote:
>=20
> > # uname -a
> > FreeBSD robinpb.homeip.net 5.4-STABLE FreeBSD 5.4-STABLE=20
> #0: Tue May=20
> > 17
> > 00:30:47 EDT 2005
> > root@bsdfs5.gactr.uga.edu:/usr/obj/usr/src/sys/fastipsec i386
> >
> > # kgdb kernel.debug /usr/local/var/adm/crash/vmcore.44
> > [GDB will not be able to debug user-mode threads:=20
> /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=20
> License, and=20
> > you are welcome to change it and/or distribute copies of it=20
> under certain conditions.
> > Type "show copying" to see the conditions.
> > There is absolutely no warranty for GDB. Type "show=20
> warranty" for details.
> > This GDB was configured as "i386-marcel-freebsd".
> > #0 doadump () at pcpu.h:160
> > 160 __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td));
> > (kgdb) bt full
> > #0 doadump () at pcpu.h:160
> > No locals.
> > #1 0xc04dd58c in boot (howto=3D260) at=20
> /usr/src/sys/kern/kern_shutdown.c:410
> > first_buf_printf =3D 1
> > #2 0xc04ddccd in panic (fmt=3D0xc066e594 "%s") at
> > /usr/src/sys/kern/kern_shutdown.c:566
> > bootopt =3D 260
> > newpanic =3D 0
> > buf =3D "page fault", '\0' <repeats 245 times>
>=20
> can you try to fish the trap output from msgbuf? That or use=20
> dmesg's -N and -M options to extract it from the crashdump.
>=20
> > #3 0xc0641e92 in trap_fatal (frame=3D0xc7ac0bc8, eva=3D36) at
> > /usr/src/sys/i386/i386/trap.c:817
> > code =3D 16
> > type =3D 12
> > ss =3D 16
> > esp =3D 0
> > softseg =3D {ssd_base =3D 0, ssd_limit =3D 1048575,=20
> ssd_type =3D 27,=20
> > ssd_dpl =3D 0, ssd_p =3D 1,
> > ssd_xx =3D 0, ssd_xx1 =3D 0, ssd_def32 =3D 1, ssd_gran =3D 1}
> > #4 0xc0642535 in trap (frame=3D
> > {tf_fs =3D 24, tf_es =3D -1066598384, tf_ds =3D=20
> -1066532848, tf_edi =3D=20
> > -1053916800, tf_esi =3D -1049515008, tf_ebp =3D -945025988, tf_isp =
=3D=20
> > -945026060, tf_ebx =3D -1053916800, tf_edx =3D -1053937024,=20
> tf_ecx =3D 56,=20
> > tf_eax =3D 0, tf_trapno =3D 12, tf_err =3D 0, tf_eip =3D=20
> -1068480504, tf_cs =3D=20
> > 8, tf_eflags =3D 65683, tf_esp =3D -1053914880, tf_ss =3D 582}) at
> > /usr/src/sys/i386/i386/trap.c:255
> > p =3D (struct proc *) 0xc12e754c
> > sticks =3D 3241036032
> > i =3D 0
> > ucode =3D 0
> > type =3D 12
> > code =3D 0
> > eva =3D 36
> > #5 0xc062da3a in calltrap () at=20
> > /usr/src/sys/i386/i386/exception.s:140
> > No locals.
> > #6 0x00000018 in ?? ()
> > No symbol table info available.
> > #7 0xc06d0010 in ipq ()
> > No symbol table info available.
> > #8 0xc06e0010 in sc_buffer.3 ()
> > No symbol table info available.
> > #9 0xc12e8180 in ?? ()
> > No symbol table info available.
> > #10 0xc171ac00 in ?? ()
> > No symbol table info available.
> > #11 0xc7ac0c3c in ?? ()
> > No symbol table info available.
> > #12 0xc7ac0bf4 in ?? ()
> > No symbol table info available.
> > #13 0xc12e8180 in ?? ()
> > No symbol table info available.
> > #14 0xc12e3280 in ?? ()
> > No symbol table info available.
> > #15 0x00000038 in ?? ()
> > No symbol table info available.
> > #16 0x00000000 in ?? ()
> > No symbol table info available.
> > #17 0x0000000c in ?? ()
> > No symbol table info available.
> > #18 0x00000000 in ?? ()
> > No symbol table info available.
> > #19 0xc0504808 in turnstile_wait (ts=3D0xc12e3280, =
lock=3D0xc06d022c,
> > owner=3D0xc171ac00)
> > at /usr/src/sys/kern/subr_turnstile.c:243
> > tc =3D (struct turnstile_chain *) 0xc06cb770
> > td1 =3D (struct thread *) 0xc12e8180 #20 0xc04d2b7f in=20
> > _mtx_lock_sleep (m=3D0xc06d022c, td=3D0xc12e8180, opts=3D0, =
file=3D0x0,=20
> > line=3D0)
> > at /usr/src/sys/kern/kern_mutex.c:552
> > ts =3D (struct turnstile *) 0x0
> > owner =3D (struct thread *) 0xc171ac00
> > v =3D 0
> > #21 0xc058a592 in tcp_isn_tick (xtp=3D0x0) at=20
> > /usr/src/sys/netinet/tcp_subr.c:1380
> > projected_offset =3D 0
> > #22 0xc04ed069 in softclock (dummy=3D0x0) at
> > /usr/src/sys/kern/kern_timeout.c:279
> > c_func =3D (void (*)(void *)) 0xc058a4d0 <tcp_isn_tick>
> > c_arg =3D (void *) 0x0
> > c_flags =3D 14
> > c =3D (struct callout *) 0x0
> > bucket =3D (struct callout_tailq *) 0xc39ba4a8
> > steps =3D 14
> > depth =3D 2
> > mpcalls =3D 2
> > gcalls =3D 0
> > wakeup_cookie =3D 14
> > #23 0xc04c460a in ithread_loop (arg=3D0xc12fd500) at
> > /usr/src/sys/kern/kern_intr.c:547
> > ih =3D (struct intrhand *) 0xc12e2c80
> > p =3D (struct proc *) 0xc12e754c
> > count =3D 0
> > warming =3D 5000
> > warned =3D 0
> > #24 0xc04c32c2 in fork_exit (callout=3D0xc04c4550 <ithread_loop>,=20
> > arg=3D0x0,
> > frame=3D0x0)
> > at /usr/src/sys/kern/kern_fork.c:791
> > p =3D (struct proc *) 0xc12e754c
> > #25 0xc062da9c in fork_trampoline () at
> > /usr/src/sys/i386/i386/exception.s:209
> > No locals.
> > (kgdb)
> >
> >
> >
> > ---------------------------------------
> > Robin P. Blanchard
> > Systems Integration Specialist
> > Georgia Center for Continuing Education
> > fon: 706.542.2404 <-> fax: 706.542.6546
> > ---------------------------------------
> > _______________________________________________
> > freebsd-stable@freebsd.org mailing list=20
> > http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> > To unsubscribe, send any mail to=20
> "freebsd-stable-unsubscribe@freebsd.org"
> >
>=20
> --=20
> Doug White | FreeBSD: The Power to Serve
> dwhite@gumbysoft.com | www.FreeBSD.org
>=20
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