ну вот, ничего не убрали
7.3-RELEASE #5
nas1# kgdb kernel.debug /var/crash/vmcore.1
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Unread portion of the kernel message buffer:
Fatal trap 12: page fault while in kernel mode
cpuid = 3; apic id = 07
fault virtual address = 0xc
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc0687dd6
stack pointer = 0x28:0xe77b4b3c
frame pointer = 0x28:0xe77b4b68
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 = 42 (dummynet)
trap number = 12
panic: page fault
cpuid = 3
Uptime: 20m6s
Physical memory: 3895 MB
Dumping 121 MB: 106 90 74 58 42 26 10
Reading symbols from /boot/modules/ng_ipacct.ko...done.
Loaded symbols for /boot/modules/ng_ipacct.ko
#0 doadump () at pcpu.h:196
196 __asm __volatile("movl %%fs:0,%0" : "=r" (td));
(kgdb)
(kgdb)
(kgdb) list *0xc0687dd6
0xc0687dd6 is in m_copym (/usr/src/sys/kern/uipc_mbuf.c:538).
533 MBUF_CHECKSLEEP(wait);
534 if (off == 0 && m->m_flags & M_PKTHDR)
535 copyhdr = 1;
536 while (off > 0) {
537 KASSERT(m != NULL, ("m_copym, offset > size of mbuf chain"));
538 if (off < m->m_len)
539 break;
540 off -= m->m_len;
541 m = m->m_next;
542 }
(kgdb) backtrace
#0 doadump () at pcpu.h:196
#1 0xc0633a57 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418
#2 0xc0633d29 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:574
#3 0xc086ba5c in trap_fatal (frame=0xe77b4afc, eva=12) at /usr/src/sys/i386/i386/trap.c:950
#4 0xc086bcc0 in trap_pfault (frame=0xe77b4afc, usermode=0, eva=12) at /usr/src/sys/i386/i386/trap.c:863
#5 0xc086c679 in trap (frame=0xe77b4afc) at /usr/src/sys/i386/i386/trap.c:541
#6 0xc085037b in calltrap () at /usr/src/sys/i386/i386/exception.s:166
#7 0xc0687dd6 in m_copym (m=0x0, off0=1500, len=1480, wait=1) at /usr/src/sys/kern/uipc_mbuf.c:539
#8 0xc0721555 in ip_fragment (ip=0xc75af010, m_frag=0xe77b4c34, mtu=1500, if_hwassist_flags=7, sw_csum=3840) at /usr/src/sys/netinet/ip_output.c:731
#9 0xc0722266 in ip_output (m=0xc7576000, opt=0x0, ro=0xe77b4c08, flags=1, imo=0x0, inp=0x0) at /usr/src/sys/netinet/ip_output.c:570
#10 0xc0710716 in dummynet_send (m=0xc7576000) at /usr/src/sys/netinet/ip_dummynet.c:895
#11 0xc0711d16 in dummynet_task (context=0x0, pending=1) at /usr/src/sys/netinet/ip_dummynet.c:877
#12 0xc066ac45 in taskqueue_run (queue=0xc72dfc80) at /usr/src/sys/kern/subr_taskqueue.c:282
#13 0xc066ae58 in taskqueue_thread_loop (arg=0xc096a948) at /usr/src/sys/kern/subr_taskqueue.c:401
#14 0xc060ca89 in fork_exit (callout=0xc066ad90 <taskqueue_thread_loop>, arg=0xc096a948, frame=0xe77b4d38) at /usr/src/sys/kern/kern_fork.c:811
#15 0xc08503f0 in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:271
