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Robin P. Blanchard

2005-May-21 12:25 UTC

RELENG_5 panic

# uname -a
FreeBSD robinpb.homeip.net 5.4-STABLE FreeBSD 5.4-STABLE #0: Tue May 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: /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" : "=r"
(td));
(kgdb) bt full
#0  doadump () at pcpu.h:160
No locals.
#1  0xc04dd58c in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:410
        first_buf_printf = 1
#2  0xc04ddccd in panic (fmt=0xc066e594 "%s") at
/usr/src/sys/kern/kern_shutdown.c:566
        bootopt = 260
        newpanic = 0
        buf = "page fault", '\0' <repeats 245 times>
#3  0xc0641e92 in trap_fatal (frame=0xc7ac0bc8, eva=36) at
/usr/src/sys/i386/i386/trap.c:817
        code = 16
        type = 12
        ss = 16
        esp = 0
        softseg = {ssd_base = 0, ssd_limit = 1048575, ssd_type = 27, ssd_dpl
= 0, ssd_p = 1, 
  ssd_xx = 0, ssd_xx1 = 0, ssd_def32 = 1, ssd_gran = 1}
#4  0xc0642535 in trap (frame      {tf_fs = 24, tf_es = -1066598384, tf_ds =
-1066532848, tf_edi -1053916800, tf_esi = -1049515008, tf_ebp = -945025988,
tf_isp = -945026060,
tf_ebx = -1053916800, tf_edx = -1053937024, tf_ecx = 56, tf_eax = 0,
tf_trapno = 12, tf_err = 0, tf_eip = -1068480504, tf_cs = 8, tf_eflags 65683,
tf_esp = -1053914880, tf_ss = 582}) at
/usr/src/sys/i386/i386/trap.c:255
        p = (struct proc *) 0xc12e754c
        sticks = 3241036032
        i = 0
        ucode = 0
        type = 12
        code = 0
        eva = 36
#5  0xc062da3a in calltrap () at /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=0xc12e3280, lock=0xc06d022c,
owner=0xc171ac00)
    at /usr/src/sys/kern/subr_turnstile.c:243
        tc = (struct turnstile_chain *) 0xc06cb770
        td1 = (struct thread *) 0xc12e8180
#20 0xc04d2b7f in _mtx_lock_sleep (m=0xc06d022c, td=0xc12e8180, opts=0,
file=0x0, line=0)
    at /usr/src/sys/kern/kern_mutex.c:552
        ts = (struct turnstile *) 0x0
        owner = (struct thread *) 0xc171ac00
        v = 0
#21 0xc058a592 in tcp_isn_tick (xtp=0x0) at
/usr/src/sys/netinet/tcp_subr.c:1380
        projected_offset = 0
#22 0xc04ed069 in softclock (dummy=0x0) at
/usr/src/sys/kern/kern_timeout.c:279
        c_func = (void (*)(void *)) 0xc058a4d0 <tcp_isn_tick>
        c_arg = (void *) 0x0
        c_flags = 14
        c = (struct callout *) 0x0
        bucket = (struct callout_tailq *) 0xc39ba4a8
        steps = 14
        depth = 2
        mpcalls = 2
        gcalls = 0
        wakeup_cookie = 14
#23 0xc04c460a in ithread_loop (arg=0xc12fd500) at
/usr/src/sys/kern/kern_intr.c:547
        ih = (struct intrhand *) 0xc12e2c80
        p = (struct proc *) 0xc12e754c
        count = 0
        warming = 5000
        warned = 0
#24 0xc04c32c2 in fork_exit (callout=0xc04c4550 <ithread_loop>, arg=0x0,
frame=0x0)
    at /usr/src/sys/kern/kern_fork.c:791
        p = (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
---------------------------------------

Doug White

2005-May-22 19:20 UTC

head link

RELENG_5 panic

On Sat, 21 May 2005, Robin P. Blanchard wrote:
> # uname -a
> FreeBSD robinpb.homeip.net 5.4-STABLE FreeBSD 5.4-STABLE #0: Tue May 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: /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" :
"=r" (td));
> (kgdb) bt full
> #0  doadump () at pcpu.h:160
> No locals.
> #1  0xc04dd58c in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:410
>         first_buf_printf = 1
> #2  0xc04ddccd in panic (fmt=0xc066e594 "%s") at
> /usr/src/sys/kern/kern_shutdown.c:566
>         bootopt = 260
>         newpanic = 0
>         buf = "page fault", '\0' <repeats 245
times>
can you try to fish the trap output from msgbuf?  That or use dmesg's -N
and -M options to extract it from the crashdump.
> #3  0xc0641e92 in trap_fatal (frame=0xc7ac0bc8, eva=36) at
> /usr/src/sys/i386/i386/trap.c:817
>         code = 16
>         type = 12
>         ss = 16
>         esp = 0
>         softseg = {ssd_base = 0, ssd_limit = 1048575, ssd_type = 27,
ssd_dpl
> = 0, ssd_p = 1,
>   ssd_xx = 0, ssd_xx1 = 0, ssd_def32 = 1, ssd_gran = 1}
> #4  0xc0642535 in trap (frame>       {tf_fs = 24, tf_es = -1066598384,
tf_ds = -1066532848, tf_edi > -1053916800, tf_esi = -1049515008, tf_ebp =
-945025988, tf_isp = -945026060,
> tf_ebx = -1053916800, tf_edx = -1053937024, tf_ecx = 56, tf_eax = 0,
> tf_trapno = 12, tf_err = 0, tf_eip = -1068480504, tf_cs = 8, tf_eflags >
65683, tf_esp = -1053914880, tf_ss = 582}) at
> /usr/src/sys/i386/i386/trap.c:255
>         p = (struct proc *) 0xc12e754c
>         sticks = 3241036032
>         i = 0
>         ucode = 0
>         type = 12
>         code = 0
>         eva = 36
> #5  0xc062da3a in calltrap () at /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=0xc12e3280, lock=0xc06d022c,
> owner=0xc171ac00)
>     at /usr/src/sys/kern/subr_turnstile.c:243
>         tc = (struct turnstile_chain *) 0xc06cb770
>         td1 = (struct thread *) 0xc12e8180
> #20 0xc04d2b7f in _mtx_lock_sleep (m=0xc06d022c, td=0xc12e8180, opts=0,
> file=0x0, line=0)
>     at /usr/src/sys/kern/kern_mutex.c:552
>         ts = (struct turnstile *) 0x0
>         owner = (struct thread *) 0xc171ac00
>         v = 0
> #21 0xc058a592 in tcp_isn_tick (xtp=0x0) at
> /usr/src/sys/netinet/tcp_subr.c:1380
>         projected_offset = 0
> #22 0xc04ed069 in softclock (dummy=0x0) at
> /usr/src/sys/kern/kern_timeout.c:279
>         c_func = (void (*)(void *)) 0xc058a4d0 <tcp_isn_tick>
>         c_arg = (void *) 0x0
>         c_flags = 14
>         c = (struct callout *) 0x0
>         bucket = (struct callout_tailq *) 0xc39ba4a8
>         steps = 14
>         depth = 2
>         mpcalls = 2
>         gcalls = 0
>         wakeup_cookie = 14
> #23 0xc04c460a in ithread_loop (arg=0xc12fd500) at
> /usr/src/sys/kern/kern_intr.c:547
>         ih = (struct intrhand *) 0xc12e2c80
>         p = (struct proc *) 0xc12e754c
>         count = 0
>         warming = 5000
>         warned = 0
> #24 0xc04c32c2 in fork_exit (callout=0xc04c4550 <ithread_loop>,
arg=0x0,
> frame=0x0)
>     at /usr/src/sys/kern/kern_fork.c:791
>         p = (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
> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to
"freebsd-stable-unsubscribe@freebsd.org"
>
-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite@gumbysoft.com          |  www.FreeBSD.org

Robin P. Blanchard

2005-May-23 12:38 UTC

head link

RELENG_5 panic

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 
kernel trap 12 with interrupts disabled

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x24
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc0504808
stack pointer           = 0x10:0xc7ac0c08
frame pointer           = 0x10:0xc7ac0c3c
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = resume, IOPL = 0
current process         = 27 (swi5: clock sio)
trap number             = 12
panic: page fault
cpuid = 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 
[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" : "=r"
(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 = td->td_blocked;
244                     MPASS(ts != NULL);
245                     tc = 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) 


---------------------------------------
Robin P. Blanchard
Systems Integration Specialist
Georgia Center for Continuing Education
fon: 706.542.2404 < > fax: 706.542.6546
---------------------------------------
 
> -----Original Message-----
> From: Doug White [mailto:dwhite@gumbysoft.com] 
> Sent: Sunday, May 22, 2005 3:20 PM
> To: Robin P. Blanchard
> Cc: stable@freebsd.org
> Subject: Re: RELENG_5 panic
> 
> On Sat, 21 May 2005, Robin P. Blanchard wrote:
> 
> > # uname -a
> > FreeBSD robinpb.homeip.net 5.4-STABLE FreeBSD 5.4-STABLE 
> #0: Tue May 
> > 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: 
> /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" :
"=r" (td));
> > (kgdb) bt full
> > #0  doadump () at pcpu.h:160
> > No locals.
> > #1  0xc04dd58c in boot (howto=260) at 
> /usr/src/sys/kern/kern_shutdown.c:410
> >         first_buf_printf = 1
> > #2  0xc04ddccd in panic (fmt=0xc066e594 "%s") at
> > /usr/src/sys/kern/kern_shutdown.c:566
> >         bootopt = 260
> >         newpanic = 0
> >         buf = "page fault", '\0' <repeats 245
times>
> 
> can you try to fish the trap output from msgbuf?  That or use 
> dmesg's -N and -M options to extract it from the crashdump.
> 
> > #3  0xc0641e92 in trap_fatal (frame=0xc7ac0bc8, eva=36) at
> > /usr/src/sys/i386/i386/trap.c:817
> >         code = 16
> >         type = 12
> >         ss = 16
> >         esp = 0
> >         softseg = {ssd_base = 0, ssd_limit = 1048575, 
> ssd_type = 27, 
> > ssd_dpl = 0, ssd_p = 1,
> >   ssd_xx = 0, ssd_xx1 = 0, ssd_def32 = 1, ssd_gran = 1}
> > #4  0xc0642535 in trap (frame> >       {tf_fs = 24, tf_es =
-1066598384, tf_ds =
> -1066532848, tf_edi = 
> > -1053916800, tf_esi = -1049515008, tf_ebp = -945025988, tf_isp = 
> > -945026060, tf_ebx = -1053916800, tf_edx = -1053937024, 
> tf_ecx = 56, 
> > tf_eax = 0, tf_trapno = 12, tf_err = 0, tf_eip = 
> -1068480504, tf_cs = 
> > 8, tf_eflags = 65683, tf_esp = -1053914880, tf_ss = 582}) at
> > /usr/src/sys/i386/i386/trap.c:255
> >         p = (struct proc *) 0xc12e754c
> >         sticks = 3241036032
> >         i = 0
> >         ucode = 0
> >         type = 12
> >         code = 0
> >         eva = 36
> > #5  0xc062da3a in calltrap () at 
> > /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=0xc12e3280, lock=0xc06d022c,
> > owner=0xc171ac00)
> >     at /usr/src/sys/kern/subr_turnstile.c:243
> >         tc = (struct turnstile_chain *) 0xc06cb770
> >         td1 = (struct thread *) 0xc12e8180 #20 0xc04d2b7f in 
> > _mtx_lock_sleep (m=0xc06d022c, td=0xc12e8180, opts=0, file=0x0, 
> > line=0)
> >     at /usr/src/sys/kern/kern_mutex.c:552
> >         ts = (struct turnstile *) 0x0
> >         owner = (struct thread *) 0xc171ac00
> >         v = 0
> > #21 0xc058a592 in tcp_isn_tick (xtp=0x0) at 
> > /usr/src/sys/netinet/tcp_subr.c:1380
> >         projected_offset = 0
> > #22 0xc04ed069 in softclock (dummy=0x0) at
> > /usr/src/sys/kern/kern_timeout.c:279
> >         c_func = (void (*)(void *)) 0xc058a4d0 <tcp_isn_tick>
> >         c_arg = (void *) 0x0
> >         c_flags = 14
> >         c = (struct callout *) 0x0
> >         bucket = (struct callout_tailq *) 0xc39ba4a8
> >         steps = 14
> >         depth = 2
> >         mpcalls = 2
> >         gcalls = 0
> >         wakeup_cookie = 14
> > #23 0xc04c460a in ithread_loop (arg=0xc12fd500) at
> > /usr/src/sys/kern/kern_intr.c:547
> >         ih = (struct intrhand *) 0xc12e2c80
> >         p = (struct proc *) 0xc12e754c
> >         count = 0
> >         warming = 5000
> >         warned = 0
> > #24 0xc04c32c2 in fork_exit (callout=0xc04c4550 <ithread_loop>, 
> > arg=0x0,
> > frame=0x0)
> >     at /usr/src/sys/kern/kern_fork.c:791
> >         p = (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 
> > http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> > To unsubscribe, send any mail to 
> "freebsd-stable-unsubscribe@freebsd.org"
> >
> 
> -- 
> Doug White                    |  FreeBSD: The Power to Serve
> dwhite@gumbysoft.com          |  www.FreeBSD.org
>

Robin P. Blanchard

2005-May-23 19:30 UTC

head link

RELENG_5 panic

> Oh another of these wonderful races... can you go to that 
> frame and "print ts"?  If its NULL then someone has ripped 
> out the ts out from under us since it was checked for NULL in 
> the previous line!
Maybe this is a more useful kgdb session (I'm hoping)

# kgdb kernel.debug /usr/local/var/adm/crash/vmcore.44 
[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" : "=r"
(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 = td->td_blocked;
244                     MPASS(ts != NULL);
245                     tc = 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) bt 
#0  doadump () at pcpu.h:160
#1  0xc04dd58c in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:410
#2  0xc04ddccd in panic (fmt=0xc066e594 "%s") at
/usr/src/sys/kern/kern_shutdown.c:566
#3  0xc0641e92 in trap_fatal (frame=0xc7ac0bc8, eva=36) at
/usr/src/sys/i386/i386/trap.c:817
#4  0xc0642535 in trap (frame      {tf_fs = 24, tf_es = -1066598384, tf_ds =
-1066532848, tf_edi -1053916800, tf_esi = -1049515008, tf_ebp = -945025988,
tf_isp = -945026060,
tf_ebx = -1053916800, tf_edx = -1053937024, tf_ecx = 56, tf_eax = 0,
tf_trapno = 12, tf_err = 0, tf_eip = -1068480504, tf_cs = 8, tf_eflags 65683,
tf_esp = -1053914880, tf_ss = 582}) at
/usr/src/sys/i386/i386/trap.c:255
#5  0xc062da3a in calltrap () at /usr/src/sys/i386/i386/exception.s:140
#6  0x00000018 in ?? ()
#7  0xc06d0010 in ipq ()
#8  0xc06e0010 in sc_buffer.3 ()
#9  0xc12e8180 in ?? ()
#10 0xc171ac00 in ?? ()
#11 0xc7ac0c3c in ?? ()
#12 0xc7ac0bf4 in ?? ()
#13 0xc12e8180 in ?? ()
#14 0xc12e3280 in ?? ()
#15 0x00000038 in ?? ()
#16 0x00000000 in ?? ()
#17 0x0000000c in ?? ()
#18 0x00000000 in ?? ()
#19 0xc0504808 in turnstile_wait (ts=0xc12e3280, lock=0xc06d022c,
owner=0xc171ac00)
    at /usr/src/sys/kern/subr_turnstile.c:243
#20 0xc04d2b7f in _mtx_lock_sleep (m=0xc06d022c, td=0xc12e8180, opts=0,
file=0x0, line=0)
    at /usr/src/sys/kern/kern_mutex.c:552
#21 0xc058a592 in tcp_isn_tick (xtp=0x0) at
/usr/src/sys/netinet/tcp_subr.c:1380
#22 0xc04ed069 in softclock (dummy=0x0) at
/usr/src/sys/kern/kern_timeout.c:279
#23 0xc04c460a in ithread_loop (arg=0xc12fd500) at
/usr/src/sys/kern/kern_intr.c:547
#24 0xc04c32c2 in fork_exit (callout=0xc04c4550 <ithread_loop>, arg=0x0,
frame=0x0)
    at /usr/src/sys/kern/kern_fork.c:791
#25 0xc062da9c in fork_trampoline () at
/usr/src/sys/i386/i386/exception.s:209
(kgdb) frame 19
#19 0xc0504808 in turnstile_wait (ts=0xc12e3280, lock=0xc06d022c,
owner=0xc171ac00)
    at /usr/src/sys/kern/subr_turnstile.c:243
243                     ts = td->td_blocked;
(kgdb) list
238                         ts->ts_lockobj->lo_name));
239
240                     /*
241                      * Pick up the lock that td is blocked on.
242                      */
243                     ts = td->td_blocked;
244                     MPASS(ts != NULL);
245                     tc = TC_LOOKUP(ts->ts_lockobj);
246                     mtx_lock_spin(&tc->tc_lock);
247
(kgdb) print ts
$1 = (struct turnstile *) 0xc12e3280
(kgdb) up
#20 0xc04d2b7f in _mtx_lock_sleep (m=0xc06d022c, td=0xc12e8180, opts=0,
file=0x0, line=0)
    at /usr/src/sys/kern/kern_mutex.c:552
552                     turnstile_wait(ts, &m->mtx_object, mtx_owner(m));
(kgdb) list
547     #endif
548
549                     /*
550                      * Block on the turnstile.
551                      */
552                     turnstile_wait(ts, &m->mtx_object, mtx_owner(m));
553             }
554
555     #ifdef KTR
556             if (cont_logged) {
(kgdb) print ts
$2 = (struct turnstile *) 0x0
(kgdb) 

---------------------------------------
Robin P. Blanchard
Systems Integration Specialist
Georgia Center for Continuing Education
fon: 706.542.2404 < > fax: 706.542.6546
---------------------------------------

freebsd stable - May 2005 - RELENG_5 panic

RELENG_5 panic

RELENG_5 panic

RELENG_5 panic

RELENG_5 panic