Помогите найти причину отчего падает сервер.
# cd /var/crash
# kgdb -q /boot/kernel/kernel vmcore.N | tee backtrace.txt (N - это номер дампа)
(kgdb) bt
(kgdb) bt full
(kgdb) quit
Unread portion of the kernel message buffer:
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x4
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc04474d7
stack pointer = 0x28:0xcc59f9c4
frame pointer = 0x28:0xcc59fa3c
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 = 24 (irq16: rl1)
trap number = 12
panic: page fault
cpuid = 0
Uptime: 5d14h35m48s
Physical memory: 247 MB
Dumping 61 MB: 46 30 14
#0 doadump () at pcpu.h:195
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:195
#1 0xc051a9e7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
#2 0xc051aca9 in panic (fmt=) at /usr/src/sys/kern/kern_shutdown.c:563
#3 0xc06eb9ec in trap_fatal (frame=0xcc59f984, eva=4)
at /usr/src/sys/i386/i386/trap.c:899
#4 0xc06ebc50 in trap_pfault (frame=0xcc59f984, usermode=0, eva=4)
at /usr/src/sys/i386/i386/trap.c:812
#5 0xc06ec5d2 in trap (frame=0xcc59f984) at /usr/src/sys/i386/i386/trap.c:490
#6 0xc06d2f5b in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7 0xc04474d7 in nat_new (fin=0xcc59fab4, np=0xc22d6a00, natsave=0x0, flags=)
at /usr/src/sys/contrib/ipfilter/netinet/ip_nat.c:2577
#8 0xc044ba32 in fr_checknatin (fin=0xcc59fab4, passp=0xcc59fab0)
at /usr/src/sys/contrib/ipfilter/netinet/ip_nat.c:4122
#9 0xc043d4f7 in fr_check (ip=0xc35a4d54, hlen=20, ifp=0xc1ddb400, out=0,
mp=0xcc59fb9c) at /usr/src/sys/contrib/ipfilter/netinet/fil.c:2572
#10 0xc044001f in fr_check_wrapper (arg=0x0, mp=0xcc59fb9c, ifp=0xc1ddb400,
dir=1) at /usr/src/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c:178
#11 0xc05b5418 in pfil_run_hooks (ph=0xc0791000, mp=0xcc59fbf4,
ifp=0xc1ddb400, dir=1, inp=0x0) at /usr/src/sys/net/pfil.c:78
#12 0xc05d6321 in ip_input (m=0xc35a4d00)
at /usr/src/sys/netinet/ip_input.c:417
#13 0xc05b4f95 in netisr_dispatch (num=2, m=0xc35a4d00)
at /usr/src/sys/net/netisr.c:185
#14 0xc05af6e1 in ether_demux (ifp=0xc1ddb400, m=0xc35a4d00)
at /usr/src/sys/net/if_ethersubr.c:834
#15 0xc05afad3 in ether_input (ifp=0xc1ddb400, m=0xc35a4d00)
at /usr/src/sys/net/if_ethersubr.c:692
#16 0xc0650ee8 in rl_rxeof (sc=0xc1de1000) at /usr/src/sys/pci/if_rl.c:1205
#17 0xc0651daa in rl_intr (arg=0xc1de1000) at /usr/src/sys/pci/if_rl.c:1362
#18 0xc04fdc0b in ithread_loop (arg=0xc1deda60)
at /usr/src/sys/kern/kern_intr.c:1036
#19 0xc04faa09 in fork_exit (callout=0xc04fda60 <ithread_loop>,
arg=0xc1deda60, frame=0xcc59fd38) at /usr/src/sys/kern/kern_fork.c:781
#20 0xc06d2fd0 in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:205
(kgdb) bt full
#0 doadump () at pcpu.h:195
No locals.
#1 0xc051a9e7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409
_giantcnt = (kgdb) quit
