Date: Tue, 9 May 2000 02:35:48 -0400 (EDT) From: Howard Leadmon <howardl@account.abs.net> To: Matthew Dillon <dillon@apollo.backplane.com> 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: <200005090635.CAA51242@account.abs.net> In-Reply-To: <200005090621.XAA48350@apollo.backplane.com> from Matthew Dillon at "May 8, 2000 11:21:24 pm"
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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.
Sounds like it was a fix that needed to be made, so I agree, just wish
my box had become stable..
> 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.
Really weird thing is that I used to have BSDi on the darn machine and
everything was fine, but moved to FBSD due to a software app I was going
to run that were FBSD binaries. I take it none of the additional backtraces
said anything worthwhile to you?? Nobody else ever responded to any of the
messages, so I'm still kind of up a creek so to speak. I swapped out all
the hardware, but maybe I need to try going to a totally different brand of
motherboard or something. Anyway thanks for trying...
> -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
>
---
Howard Leadmon - howardl@abs.net - http://www.abs.net
ABSnet Internet Services - Phone: 410-361-8160 - FAX: 410-361-8162
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