Date: Mon, 8 May 2000 23:21:24 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: Howard Leadmon <howardl@account.abs.net> Cc: Bill Paul <wpaul@skynet.ctr.columbia.edu>, Greg Lehey <grog@lemis.com>, freebsd-stable@FreeBSD.ORG, freebsd-hackers@FreeBSD.ORG Subject: Re: Debugging Kernel/System Crashes, can anyone help?? Message-ID: <200005090621.XAA48350@apollo.backplane.com> References: <200005052050.QAA31307@account.abs.net>
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I'm going to go ahead and commit the patch I supplied earlier,
even though there appear to be other unrelated problems.
Unfortunately given the reports I think there are a bunch of things
at issue here. I don't know why your machine is crashing so much
in so many different places, but I suspect there is a network
issue involved... perhaps line errors or some other problem that
is exercising the ethernet in a weird way and causing the bugs
to rear their ugly heads.
-Matt
Matthew Dillon
<dillon@backplane.com>
:OK, as requested here is the output:
:
:c01c1850 t dc_intr
:c022f41c t fdc_intr
:
:
:
:> It would also help if you could do the following from the gdb of the
:> kernel:
:>
:> frame 14
:
:(kgdb) frame 14
:#14 0xc01c18fb in dc_intr (arg=0xc0de6000) at machine/cpufunc.h:331
:331 __asm __volatile("outl %0,%%dx" : : "a" (data), "d" (port));
:
:
:> print sc
:
:(kgdb) print sc
:$1 = (struct dc_softc *) 0xc0de6000
:
:
:> print *sc
:
:
:(kgdb) print *sc
:$2 = {arpcom = {ac_if = {if_softc = 0xc0de6000, if_name = 0xc0246530 "dc",
: if_link = {tqe_next = 0xc5901204, tqe_prev = 0xc02980f4}, if_addrhead = {
: tqh_first = 0xc5901800, tqh_last = 0xc59eee10}, if_pcount = 0,
: if_bpf = 0x0, if_index = 1, if_unit = 0, if_timer = 0,
: if_flags = -30717, if_ipending = 0, if_linkmib = 0x0, if_linkmiblen = 0,
: if_data = {ifi_type = 6 '\006', ifi_physical = 0 '\000',
: ifi_addrlen = 6 '\006', ifi_hdrlen = 14 '\016',
: ifi_recvquota = 0 '\000', ifi_xmitquota = 0 '\000', ifi_mtu = 1500,
: ifi_metric = 0, ifi_baudrate = 10000000, ifi_ipackets = 2683140,
: ifi_ierrors = 0, ifi_opackets = 1716990, ifi_oerrors = 0,
: ifi_collisions = 0, ifi_ibytes = 394131741, ifi_obytes = 295972886,
: ifi_imcasts = 17, ifi_omcasts = 0, ifi_iqdrops = 0, ifi_noproto = 0,
: ifi_recvtiming = 0, ifi_xmittiming = 0, ifi_lastchange = {tv_sec = 0,
: tv_usec = 0}}, if_multiaddrs = {lh_first = 0xc0de7120},
: if_amcount = 0, if_output = 0xc0174a04 <ether_output>,
: if_start = 0xc01c1fa4 <dc_start>, if_done = 0,
: if_ioctl = 0xc01c2848 <dc_ioctl>,
: if_watchdog = 0xc01c29ac <dc_watchdog>, if_poll_recv = 0,
: if_poll_xmit = 0, if_poll_intren = 0, if_poll_slowinput = 0,
: if_init = 0xc01c20e4 <dc_init>,
: if_resolvemulti = 0xc017508c <ether_resolvemulti>, if_snd = {
: ifq_head = 0x0, ifq_tail = 0x0, ifq_len = 0, ifq_maxlen = 255,
: ifq_drops = 0}, if_poll_slowq = 0x0, if_prefixhead = {tqh_first = 0x0,
: tqh_last = 0xc0de60d0}}, ac_enaddr = "\000Àð;§ë", ac_multicnt = 0,
: ac_ng = 0x0}, dc_bhandle = 54272, dc_btag = 0, dc_intrhand = 0xc0de7ac0,
: dc_irq = 0xc5900140, dc_res = 0xc59001c0, dc_info = 0xc026f004,
: dc_miibus = 0xc590a880, dc_unit = 0 '\000', dc_type = 4 '\004',
: dc_pmode = 1 '\001', dc_link = 0 '\000', dc_cachesize = 8 '\b',
: dc_pnic_rx_bug_save = 0, dc_pnic_rx_buf = 0x0, dc_if_flags = 0,
: dc_if_media = 1048614, dc_flags = 521, dc_txthresh = 0,
: dc_ldata = 0xd5660000, dc_cdata = {dc_rx_chain = {0x0 <repeats 64 times>},
: dc_tx_chain = {0x0 <repeats 256 times>}, dc_sbuf = {0 <repeats 15 times>,
: 32768, 0 <repeats 15 times>, 16384, 0, 0, 0, 0, 0, 0, 0, 49152, 15344,
: 60327, 0, 0, 0, 0, 0, 0}, dc_pad = '\000' <repeats 59 times>,
: dc_tx_prod = 10, dc_tx_cons = 10, dc_tx_cnt = 0, dc_rx_prod = 4},
: dc_stat_ch = {callout = 0xcd6a56c0}}
:
:
:FYI, the machine in general is staying up a bit longer, so maybe you
:nailed one bug and there are just a few more that also need to be
:caught. :)
:
:Anyway thinks for trying to help me track this one down as it's very
:much appreicated, and if you need any other info just let me know...
:
:
:---
:Howard Leadmon - howardl@abs.net - http://www.abs.net
:ABSnet Internet Services - Phone: 410-361-8160 - FAX: 410-361-8162
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