FreeBsd 6.4-Stable i386

[Mikołaj Goj]

#kgdb kernel.debug /var/crash/vmcore.0
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Unread portion of the kernel message buffer:


Fatal trap 12: page fault while in kernel mode
fault virtual address   = 0xc
fault code              = supervisor read, page not present
instruction pointer     = 0x20:0xc05cc4f0
stack pointer           = 0x28:0xe328aa20
frame pointer           = 0x28:0xe328aa2c
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         = 11 (swi1: net)
trap number             = 12
panic: page fault
Uptime: 5d22h10m3s
Dumping 999 MB (2 chunks)
  chunk 0: 1MB (159 pages) ... ok
  chunk 1: 999MB (255665 pages) 983 967 951 935 919 903 887 871 855 839 
823 807 791 775 759 743 727 711 695 679 663 647 631 615 599 583 567 551 
535 519 503 487 471 455 439 423 407 391 375 359 343 327 311 295 279 263 
247 231 215 199 183 167 151 135 119 103 87 71 55 39 23 7

Reading symbols from /boot/kernel/acpi.ko...done.
Loaded symbols for /boot/kernel/acpi.ko
#0  doadump () at pcpu.h:165
165             __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb)
(kgdb) list *0xc05cc4f0
0xc05cc4f0 is in m_copydata (libkern.h:56).
51      static __inline int imax(int a, int b) { return (a > b ? a : b); }
52      static __inline int imin(int a, int b) { return (a < b ? a : b); }
53      static __inline long lmax(long a, long b) { return (a > b ? a : 
b); }
54      static __inline long lmin(long a, long b) { return (a < b ? a : 
b); }
55      static __inline u_int max(u_int a, u_int b) { return (a > b ? a 
: b); }
56      static __inline u_int min(u_int a, u_int b) { return (a < b ? a 
: b); }
57      static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b 
? a : b); }
58      static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b 
? a : b); }
59      static __inline u_long ulmax(u_long a, u_long b) { return (a > b 
? a : b); }
60      static __inline u_long ulmin(u_long a, u_long b) { return (a < b 
? a : b); }
(kgdb) backtrace
#0  doadump () at pcpu.h:165
#1  0xc059578e in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:410
#2  0xc0595a24 in panic (fmt=0xc079ab85 "%s") at 
/usr/src/sys/kern/kern_shutdown.c:566
#3  0xc076d408 in trap_fatal (frame=0xe328a9e0, eva=12) at 
/usr/src/sys/i386/i386/trap.c:838
#4  0xc076d16f in trap_pfault (frame=0xe328a9e0, usermode=0, eva=12) at 
/usr/src/sys/i386/i386/trap.c:745
#5  0xc076cdcd in trap (frame=
      {tf_fs = -996278264, tf_es = -483917784, tf_ds = -1067974616, 
tf_edi = 1, tf_esi = 0, tf_ebp = -483874260, tf_isp = -483874292, tf_ebx 
= 31, tf_edx = 0, tf_ecx = 0, tf_eax = 4684827, tf_trapno = 12, tf_err = 
0, tf_eip = -1067662096, tf_cs = 32, tf_eflags = 590338, tf_esp = 
-925909824, tf_ss = -925909813}) at /usr/src/sys/i386/i386/trap.c:435
#6  0xc075a96a in calltrap () at /usr/src/sys/i386/i386/exception.s:139
#7  0xc05cc4f0 in m_copydata (m=0x0, off=0, len=1, cp=0xc8cfbcea "ction 
refused\r\n227 Entering Passive Mode (194,177,4,239,237,103).\r\n200 
PORT co\034\006") at /usr/src/sys/kern/uipc_mbuf.c:543
#8  0xc0450be2 in ippr_ftp_process (fin=0xe328ab6c, nat=0xc8b9d200, 
ftp=0xc8cfbc00, rv=1) at ip_ftp_pxy.c:1166
#9  0xc0450f26 in ippr_ftp_in (fin=0xe328ab6c, aps=0x477c1b, 
nat=0xc8b9d200) at ip_ftp_pxy.c:1332
#10 0xc04556f9 in appr_check (fin=0xe328ab6c, nat=0xc8b9d200) at 
/usr/src/sys/contrib/ipfilter/netinet/ip_proxy.c:543
#11 0xc044db61 in fr_natin (fin=0xe328ab6c, nat=0xc8b9d200, natadd=1, 
nflags=1) at /usr/src/sys/contrib/ipfilter/netinet/ip_nat.c:4228
#12 0xc044da3a in fr_checknatin (fin=0xe328ab6c, passp=0xe328ab68) at 
/usr/src/sys/contrib/ipfilter/netinet/ip_nat.c:4163
#13 0xc043f585 in fr_check (ip=0xc8884010, hlen=20, ifp=0x477c1b, out=0, 
mp=0xe328ac54) at /usr/src/sys/contrib/ipfilter/netinet/fil.c:2572
#14 0xc0445062 in fr_check_wrapper (arg=0x0, mp=0x0, ifp=0xc4b26000, 
dir=1) at /usr/src/sys/contrib/ipfilter/netinet/ip_fil_freebsd.c:178
#15 0xc060ff03 in pfil_run_hooks (ph=0xc08626a0, mp=0xe328aca8, 
ifp=0xc4b26000, dir=1, inp=0x0) at /usr/src/sys/net/pfil.c:139
#16 0xc062fbb7 in ip_input (m=0xc884f600) at 
/usr/src/sys/netinet/ip_input.c:468
#17 0xc060ea73 in netisr_processqueue (ni=0xc0861358) at 
/usr/src/sys/net/netisr.c:236
#18 0xc060ec6e in swi_net (dummy=0x0) at /usr/src/sys/net/netisr.c:349
#19 0xc057d55d in ithread_execute_handlers (p=0xc4a21a78, ie=0xc4a71280) 
at /usr/src/sys/kern/kern_intr.c:682
#20 0xc057d678 in ithread_loop (arg=0xc4a02720) at 
/usr/src/sys/kern/kern_intr.c:766
#21 0xc057c4e4 in fork_exit (callout=0xc057d624 <ithread_loop>, 
arg=0xc4a02720, frame=0xe328ad38) at /usr/src/sys/kern/kern_fork.c:788
#22 0xc075a9cc in fork_trampoline () at 
/usr/src/sys/i386/i386/exception.s:208
(kgdb) quit