panic in in_pcb.c:866

Hi,

I'm not sure if this is a known problem; I'm getting the following panic
on my laptop quite often, with a kernel from Sun Nov  2 21:57:32 CET 2003.
The only active network interface is an ath(4) Cardbus WLAN card.

Backtrace is attached, if you need more info I have the backtrace
available:

---
Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0x24
fault code              = supervisor read, page not present
instruction pointer     = 0x8:0xc053e64b
stack pointer           = 0x10:0xcdcc3bb0
frame pointer           = 0x10:0xcdcc3bc4
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         = 13 (swi8: tty:sio clock)
Dumping 255 MB
 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
---
Reading symbols from /boot/kernel/ng_ubt.ko...done.
Loaded symbols for /boot/kernel/ng_ubt.ko
Reading symbols from /boot/kernel/netgraph.ko...done.
Loaded symbols for /boot/kernel/netgraph.ko
Reading symbols from
/usr/obj/usr/src/sys/KORBEN/modules/usr/src/sys/modules/acpi/acpi.ko.debug...done.
Loaded symbols for
/usr/obj/usr/src/sys/KORBEN/modules/usr/src/sys/modules/acpi/acpi.ko.debug
Reading symbols from
/usr/obj/usr/src/sys/KORBEN/modules/usr/src/sys/modules/linux/linux.ko.debug...done.
Loaded symbols for
/usr/obj/usr/src/sys/KORBEN/modules/usr/src/sys/modules/linux/linux.ko.debug
#0  doadump () at /usr/src/sys/kern/kern_shutdown.c:240
240             dumping++;
(kgdb) where
#0  doadump () at /usr/src/sys/kern/kern_shutdown.c:240
#1  0xc044c885 in db_fncall (dummy1=0, dummy2=0, dummy3=0,
    dummy4=0xcdcc39dc "_at_EtÀ\f") at /usr/src/sys/ddb/db_command.c:548
#2  0xc044c5d2 in db_command (last_cmdp=0xc0743be0, cmd_table=0x0,
    aux_cmd_tablep=0xc06fa4b0, aux_cmd_tablep_end=0xc06fa4b4)
    at /usr/src/sys/ddb/db_command.c:346
#3  0xc044c715 in db_command_loop () at /usr/src/sys/ddb/db_command.c:472
#4  0xc044f735 in db_trap (type=12, code=0) at
/usr/src/sys/ddb/db_trap.c:73
#5  0xc068c97c in kdb_trap (type=12, code=0, regs=0xcdcc3b70)
    at /usr/src/sys/i386/i386/db_interface.c:171
#6  0xc069e4d6 in trap_fatal (frame=0xcdcc3b70, eva=0)
    at /usr/src/sys/i386/i386/trap.c:818
#7  0xc069db23 in trap (frame=
      {tf_fs = -1068171240, tf_es = -1022427120, tf_ds = -1049821168,
tf_edi = 0, tf_esi = 36, tf_ebp = -842253372, tf_isp = -842253412, tf_ebx
= 0, tf_edx = -1066490503, tf_ecx = -1024585424, tf_eax = 36, tf_trapno =
12, tf_err = 0, tf_eip = -1068243381, tf_cs = 8, tf_eflags = 66195, tf_esp
= 14, tf_ss = -842253312})
    at /usr/src/sys/i386/i386/trap.c:252
#8  0xc068e328 in calltrap () at {standard input}:102
#9  0xc053ea99 in _mtx_lock_sleep (m=0x24, opts=0, file=0x0, line=0)
    at /usr/src/sys/kern/kern_mutex.c:635
#10 0xc05dafd9 in in_losing (inp=0xc2ed8460)
    at /usr/src/sys/netinet/in_pcb.c:866
#11 0xc05ec414 in tcp_timer_rexmt (xtp=0xc2eda590)
    at /usr/src/sys/netinet/tcp_timer.c:568
#12 0xc055b6de in softclock (dummy=0x0) at
/usr/src/sys/kern/kern_timeout.c:225
#13 0xc05331a8 in ithread_loop (arg=0xc16c0c80)
    at /usr/src/sys/kern/kern_intr.c:540
#14 0xc0531e50 in fork_exit (callout=0xc0532fd0 <ithread_loop>, arg=0x0,
    frame=0x0) at /usr/src/sys/kern/kern_fork.c:793
---

regards,
le

-- 
Lukas Ertl                             eMail: l.ertl_at_univie.ac.at
UNIX Systemadministrator               Tel.:  (+43 1) 4277-14073
Vienna University Computer Center      Fax.:  (+43 1) 4277-9140
University of Vienna                   http://mailbox.univie.ac.at/~le/