This was reported before, but I was never able to reproduce it and the original reporter didn't reply anymore (iirc). Can you please turn this into a PR so that we do not lose track this time? I will be looking into it. Thanks. On Thursday 12 August 2004 19:14, Sangwoo Shim wrote: > [ FreeBSD-current list rejects my mail. So, to pf maintainers.. ] > > I recently got this panic. 1~2 times in a day. > It seems that pflog is the culprit.. pflog0's if_afdata contains > nothing but null. I couldn't reproduce the panic with pf.ko unloaded. > option INET6 is in kernel configuration. > The machine is SMP. If you need more information, please let me know. > I'm using FreeBSD-current of Aug 12. > > panic messages: > --- > Fatal trap 12: page fault while in kernel mode > cpuid = 0; apic id = 01 > fault virtual address = 0x8 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xc056ec72 > stack pointer = 0x10:0xd53efcb8 > frame pointer = 0x10:0xd53efcc4 > 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 = 37 (swi5: clock sio) > Dumping 511 MB > 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256 272 288 304 320 > 336 352 368 384 400 416 432 448 464 480 496 --- > #0 doadump () at pcpu.h:159 > 159 pcpu.h: No such file or directory. > in pcpu.h > doadump () at pcpu.h:159 > 159 in pcpu.h > (kgdb) bt > #0 doadump () at pcpu.h:159 > #1 0xc043b83a in db_fncall (dummy1=0, dummy2=0, dummy3=-717292800, > dummy4=0xd53efae8 "\034û¾Õ¢) at /usr/src/sys/ddb/db_command.c:531 > #2 0xc043b648 in db_command (last_cmdp=0xc069cea4, cmd_table=0x0, > aux_cmd_tablep=0xc066cc44, aux_cmd_tablep_end=0xc066cc48) > at /usr/src/sys/ddb/db_command.c:349 > #3 0xc043b710 in db_command_loop () at /usr/src/sys/ddb/db_command.c:455 > #4 0xc043d289 in db_trap (type=12, code=0) at > /usr/src/sys/ddb/db_main.c:221 #5 0xc04d9020 in kdb_trap (type=12, code=0, > tf=0xd53efc78) > at /usr/src/sys/kern/subr_kdb.c:401 > #6 0xc062795d in trap_fatal (frame=0xd53efc78, eva=8) > at /usr/src/sys/i386/i386/trap.c:807 > #7 0xc06276bb in trap_pfault (frame=0xd53efc78, usermode=0, eva=8) > at /usr/src/sys/i386/i386/trap.c:730 > #8 0xc06272d1 in trap (frame= > {tf_fs = -1045626856, tf_es = -717357040, tf_ds = -717357040, tf_edi > = -1045585920, tf_esi = -1045508608, tf_ebp = -717292348, tf_isp = > -717292380, tf_ebx = 23040, tf_edx = 1474, tf_ecx = -1066723816, tf_eax = > 0, tf_trapno = 12, tf_err = 0, tf_eip = -1068045198, tf_cs = 8, tf_eflags = > 66182, tf_esp = 6, tf_ss = 4}) at /usr/src/sys/i386/i386/trap.c:417 #9 > 0xc0615b1a in calltrap () at /usr/src/sys/i386/i386/exception.s:140 #10 > 0xc1ad0018 in ?? () > #11 0xd53e0010 in ?? () > #12 0xd53e0010 in ?? () > #13 0xc1ada000 in ?? () > #14 0xc1aece00 in ?? () > #15 0xd53efcc4 in ?? () > #16 0xd53efca4 in ?? () > #17 0x00005a00 in ?? () > #18 0x000005c2 in ?? () > #19 0xc06b1618 in arc4_sbox () > #20 0x00000000 in ?? () > #21 0x0000000c in ?? () > #22 0x00000000 in ?? () > #23 0xc056ec72 in nd6_slowtimo (ignored_arg=0x0) > at /usr/src/sys/netinet6/nd6.c:1800 > #24 0xc04cd05b in softclock (dummy=0x0) at > /usr/src/sys/kern/kern_timeout.c:259 #25 0xc04ab6bd in ithread_loop > (arg=0xc1977c00) > at /usr/src/sys/kern/kern_intr.c:546 > #26 0xc04aa7fd in fork_exit (callout=0xc04ab564 <ithread_loop>, > arg=0xc1977c00, frame=0xd53efd48) at /usr/src/sys/kern/kern_fork.c:819 > #27 0xc0615b7c in fork_trampoline () at > /usr/src/sys/i386/i386/exception.s:209 (kgdb) up 23 > #23 0xc056ec72 in nd6_slowtimo (ignored_arg=0x0) > at /usr/src/sys/netinet6/nd6.c:1800 > 1800 nd6if = ND_IFINFO(ifp); > (kgdb) l > 1795 > 1796 callout_reset(&nd6_slowtimo_ch, ND6_SLOWTIMER_INTERVAL * > hz, 1797 nd6_slowtimo, NULL); > 1798 IFNET_RLOCK(); > 1799 for (ifp = TAILQ_FIRST(&ifnet); ifp; ifp = TAILQ_NEXT(ifp, > if_list)) { 1800 nd6if = ND_IFINFO(ifp); > 1801 if (nd6if->basereachable && /* already initialized > */ 1802 (nd6if->recalctm -= ND6_SLOWTIMER_INTERVAL) > <= 0) { 1803 /* > 1804 * Since reachable time rarely changes by > router (kgdb) p *ifp > $1 = {if_softc = 0xc1ada000, if_link = {tqe_next = 0xc1ae1800, > tqe_prev = 0xc1adb004}, > if_xname = "pflog0\000\000\000\000\000\000\000\000\000", > if_dname = 0xc077ee0d "pflog", if_dunit = 0, if_addrhead = { > tqh_first = 0xc1ae3e00, tqh_last = 0xc1ae3e60}, if_klist = { > slh_first = 0x0}, if_pcount = 0, if_carp = 0x0, if_bpf = 0x0, > if_index = 4, if_timer = 0, if_nvlans = 0, if_flags = 0, > if_capabilities = 0, if_capenable = 0, if_linkmib = 0x0, if_linkmiblen = > 0, if_data = {ifi_type = 246 'ö§, ifi_physical = 0 '\0', ifi_addrlen = 0 > '\0', ifi_hdrlen = 48 '0', ifi_link_state = 0 '\0', ifi_recvquota = 0 '\0', > ifi_xmitquota = 0 '\0', ifi_mtu = 33208, ifi_metric = 0, ifi_baudrate = 0, > ifi_ipackets = 0, ifi_ierrors = 0, ifi_opackets = 0, ifi_oerrors = 0, > ifi_collisions = 0, ifi_ibytes = 0, ifi_obytes = 0, ifi_imcasts = 0, > ifi_omcasts = 0, ifi_iqdrops = 0, ifi_noproto = 0, ifi_hwassist = 0, > ifi_unused = 0, ifi_lastchange = {tv_sec = 1, tv_usec = 10464}}, > if_multiaddrs = {tqh_first = 0x0, tqh_last = 0xc1ada0a8}, if_amcount = 0, > if_output = 0xc077d738, if_input = 0, if_start = 0xc077d69c, > if_ioctl = 0xc077d760, if_watchdog = 0, if_init = 0, if_resolvemulti = 0, > if_snd = {ifq_head = 0x0, ifq_tail = 0x0, ifq_len = 0, ifq_maxlen = 50, > ifq_drops = 0, ifq_mtx = {mtx_object = {lo_class = 0xc067db3c, > lo_name = 0xc1ada00c "pflog0", lo_type = 0xc0657e7d "if send > queue", lo_flags = 196608, lo_list = {tqe_next = 0x0, tqe_prev = 0x0}, > lo_witness = 0x0}, mtx_lock = 4, mtx_recurse = 0}, ifq_drv_head = 0x0, > ifq_drv_tail = 0x0, ifq_drv_len = 0, ifq_drv_maxlen = 0, altq_type = 0, > altq_flags = 0, altq_disc = 0x0, altq_ifp = 0xc1ada000, altq_enqueue = 0, > altq_dequeue = 0, altq_request = 0, altq_clfier = 0x0, altq_classify = 0, > altq_tbr = 0x0, altq_cdnr = 0x0}, if_broadcastaddr = 0x0, lltables = 0x0, > if_label = 0x0, if_prefixhead = {tqh_first = 0x0, tqh_last = 0xc1ada150}, > if_afdata = {0x0 <repeats 37 times>}, if_afdata_initialized = 1, > if_afdata_mtx = {mtx_object = {lo_class = 0xc067db3c, > lo_name = 0xc0657e6d "if_afdata", lo_type = 0xc0657e6d "if_afdata", > lo_flags = 196608, lo_list = {tqe_next = 0x0, tqe_prev = 0x0}, > lo_witness = 0x0}, mtx_lock = 4, mtx_recurse = 0}, if_starttask = { > ta_link = {stqe_next = 0x0}, ta_pending = 0, ta_priority = 0, > ta_func = 0xc0527fb4 <if_start_deferred>, ta_context = 0xc1ada000}} > > Thanks. > - Sangwoo Shim -- /"\ Best regards, | mlaier_at_freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier_at_EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News
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