Hi, I had a freebsd 4-7 stable system panic while i was running low on mbufs.
Can someone provide me with some background info so I can debug this some more? How would I get into the situation where the socket has no mbuf allocated to it? Where does this allocation usually take place? How/why did send acknowledge count be greater then the send next count? Is -1 a valid offset? Saw a few similar postings where m_copy data ran in to the same args from tcp_output http://www.google.ca/search?q=cache:s7uT8Qeei-0J:www.geocrawler.com/mail/msg .php3%3Fmsg_id%3D657553+freebsd+tcp_output+sb_mb&hl=en and an old bug http://www.freebsd.org/cgi/query-pr.cgi?pr=1013 Any pointers to get me going on this would be appreciated. Thanks in advance. (kgdb) bt #0 dumpsys () at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/kern/kern_shutdown .c:492 #1 0xc01c5978 in boot (howto=256) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/kern/kern_shutdown .c:321 #2 0xc01c5ea1 in panic (fmt=0xc034945e "%s") at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/kern/kern_shutdown .c:607 #3 0xc02ef324 in trap_fatal (frame=0xf2eca92c, eva=0) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/i386/i386/trap.c:9 92 #4 0xc02eef4d in trap_pfault (frame=0xf2eca92c, usermode=0, eva=12) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/i386/i386/trap.c:885 #5 0xc02ee9ef in trap (frame={tf_fs = -828506088, tf_es = -828506096, tf_ds = 116129808, tf_edi = 1, tf_esi = 0, tf_ebp = -219371144, tf_isp = -219371176, tf_ebx = -307373120, tf_edx = -1, tf_ecx = -334664960, tf_eax = -1, tf_trapno = 12, tf_err = 0, tf_eip = -1071748160, tf_cs = 8, tf_eflags = 66050, tf_esp = -307373120, tf_ss = 12}) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/i386/i386/trap.c:484 #6 0xc01e6bc0 in m_copydata (m=0x0, off=-1, len=1, cp=0xc5b30a74 "~ñ\202,\200\205R\001òP\a÷;ªïIÅ+6«d\eh\17708.172.128.222 (<a h ref=\"http://www.footprint.net\";>Footprint 3.0/FPMCP</a>)\n</BODY></HTML>\n") at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/kern/uipc_mbuf.c:1002 #7 0xc022f0ce in tcp_output (tp=0xedaddbc0) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/netinet/tcp_output.c: 608 #8 0xc022e0bf in tcp_input (m=0xc5b30a00, off0=20, proto=6) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/netinet/tcp_input.c:2 252 #9 0xc02256bf in ip_input (m=0xc5b30a00) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/netinet/ip_input.c:88 1 #10 0xc0225747 in ipintr () at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/netinet/ip_input.c:90 2 #11 0xc02dde61 in swi_net_next () #12 0xc0207100 in spec_write (ap=0x37) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/miscfs/specfs/spec _vnops.c:283 #13 0xc0292d10 in ufsspec_write (ap=0xf2ecae70) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/ufs/ufs/ufs_vnops. c:1873 #14 0xc0293465 in ufs_vnoperatespec (ap=0x0) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/ufs/ufs/ufs_vnops. c:2440 #15 0xc0202996 in vn_write (fp=0xd7e676c0, uio=0xf2ecaedc, cred=0xd7a32880, flags=0, p=0xf2c43ee0) at vnode_if.h:363 #16 0xc01d767e in dofilewrite (p=0xf2c43ee0, fp=0xd7e676c0, fd=0, buf=0x0, nbyte=4075597532, offset=-942185962111238144, flags=0) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/sys/file.h:162 #17 0xc01d751b in write (p=0xf2c43ee0, uap=0xf2ecaf80) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/kern/sys_generic.c :329 #18 0xc02ef67d in syscall2 (frame={tf_fs = -1068957649, tf_es = 47, tf_ds = 136314927, tf_edi = 1, tf_esi = 1747982016, tf_ebp = -1079200356, tf_isp = -219369516, tf_ebx = 1748019148, tf_edx = 136388608, tf_ecx = 1876638720, tf_eax = 4, tf_trapno = 22, tf_err = 2, tf_eip = 1747725928, tf_cs = 31, tf_eflags = 646, tf_esp = -1079200416, tf_ss = 47}) at /d3/builds/swbuild_swbuild_plt_proton5_FREEBSD/src/sys/i386/i386/trap.c:1 193 #19 0xc02d9d6b in Xint0x80_syscall () #20 0x682b8981 in ?? () (kgdb) p *tp $7 = {t_segq = {lh_first = 0x0}, t_dupacks = 0, unused = 0x0, tt_rexmt = 0xedaddca4, tt_persist = 0xedaddcbc, tt_keep = 0xedaddcd4, tt_2msl = 0xedaddcec, tt_delack = 0xedaddd04, t_inpcb = 0xedaddb00, t_state = 4, t_flags = 33249, t_force = 0, snd_una = 1726825387, snd_max = 1726825387, snd_nxt = 1726825386, snd_up = 1726825386, snd_wl1 = 3607398008, snd_wl2 = 1726825387, iss = 1726825386, irs = 3607398007, rcv_nxt = 3607398008, rcv_adv = 3607455928, rcv_wnd = 57920, rcv_up = 3607398008, snd_wnd = 65535, snd_cwnd = 1448, snd_bwnd = 1073725440, snd_ssthresh = 2904, snd_bandwidth = 0, snd_recover = 1726825387, t_maxopd = 1460, t_rcvtime = 280063744, t_starttime = 280063744, t_rtttime = 0, t_rtseq = 1726825386, t_bw_rtttime = 280054231, t_bw_rtseq = 1726825386, t_rxtcur = 24464, t_maxseg = 1448, t_srtt = 255616, t_rttvar = 63904, t_rxtshift = 0, t_rttmin = 2500, t_rttbest = 319520, t_rttupdated = 1, max_sndwnd = 65535, t_softerror = 0, t_oobflags = 0 '\000', t_iobc = 0 '\000', snd_scale = 1 '\001', rcv_scale = 0 '\000', request_r_scale = 0 '\000', requested_s_scale = 1 '\001', ts_recent = 289118643, ts_recent_age = 280063744, last_ack_sent = 0, cc_send = 100631, cc_recv = 0, snd_cwnd_prev = 1073725440, snd_ssthresh_prev = 1073725440, t_badrxtwin = 280063257} (kgdb) (kgdb) p *inp $8 = {inp_hash = {le_next = 0x0, le_prev = 0xcc28d9d4}, inp_list = { le_next = 0xedadd8e0, le_prev = 0xc0412480}, inp_flow = 0, inp_inc = { inc_flags = 0 '\000', inc_len = 0 '\000', inc_pad = 0, inc_ie = { ie_fport = 40861, ie_lport = 51976, ie_dependfaddr = {ie46_foreign = { ia46_pad32 = {0, 0, 0}, ia46_addr4 = {s_addr = 2120346432}}, ie6_foreign = {__u6_addr = { __u6_addr8 = '\000' <repeats 12 times>, "@ëa~", __u6_addr16 = {0, 0, 0, 0, 0, 0, 60224, 32353}, __u6_addr32 = {0, 0, 0, 2120346432}}}}, ie_dependladdr = {ie46_local = {ia46_pad32 = {0, 0, 0}, ia46_addr4 = {s_addr = 181044696}}, ie6_local = { __u6_addr = {__u6_addr8 = '\000' <repeats 12 times>, "O\205E\n", __u6_addr16 = {0, 0, 0, 0, 0, 0, 34264, 2762}, __u6_addr32 = {0, 0, 0, 181044696}}}}}, inc_dependroute = {inc4_route = { ro_rt = 0xd7b63300, ro_dst = {sa_len = 16 '\020', sa_family = 2 '\002', sa_data = "[EMAIL PROTECTED]"}}, inc6_route = {ro_rt = 0xd7b63300, ro_dst = {sin6_len = 16 '\020', sin6_family = 2 '\002', sin6_port = 0, sin6_flowinfo = 2120346432, sin6_addr = {__u6_addr = {__u6_addr8 = '\000' <repeats 15 times>, __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, sin6_scope_id = 0}}}}, inp_ppcb = 0xedaddbc0 "", inp_primecb = 0x0, inp_pcbinfo = 0xc04125e0, inp_socket = 0xec0d6b00, inp_flags = 64, inp_sp = 0x0, inp_vflag = 1 '\001', inp_ip_ttl = 64 '@', inp_ip_p = 0 '\000', inp_depend4 = {inp4_ip_tos = 0 '\000', inp4_options = 0x0, inp4_moptions = 0x0}, inp_depend6 = { inp6_options = 0x0, inp6_outputopts = 0x0, inp6_moptions = 0x0, inp6_icmp6filt = 0x0, inp6_cksum = 0, inp6_ifindex = 0, inp6_hops = 0, inp6_hlim = 0 '\000'}, inp_portlist = {le_next = 0x0, le_prev = 0xcc40bad8}, inp_phd = 0xcc40bad0, inp_gencnt = 531468} (kgdb) _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
