Date: Sun, 18 Jan 2004 17:36:27 -0500 From: Jesse Guardiani <jesse@wingnet.net> To: freebsd-current@freebsd.org Subject: spontaneous reboot under 5.2-RELEASE (w/DEBUG kernel) Message-ID: <buf1pb$e0v$1@sea.gmane.org>
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Howdy list,
I've got a 5.2-RELEASE machine running a debug kernel
that just spontaneously rebooted as I was trying to
install an openoffice package over NFS.
Here's what I found in /var/log/messages upon boot:
Jan 18 16:49:40 david kernel: lock order reversal
Jan 18 16:49:40 david kernel: 1st 0xc4f315ac vm object (vm object) @ vm/swap_pager.c:1323
Jan 18 16:49:40 david kernel: 2nd 0xc0989e20 swap_pager swhash (swap_pager swhash) @ vm/swap_pager.c:1838
Jan 18 16:49:40 david kernel: 3rd 0xc10358c4 vm object (vm object) @ vm/uma_core.c:873
Jan 18 16:49:40 david kernel: Stack backtrace:
I _know_ this is a supposedly harmless backtrace.
And I found this message:
http://lists.freebsd.org/pipermail/freebsd-current/2003-December/015780.html
Which suggests that I remove WITNESS_DDB or DDB_UNATTENDED
from my kernel, but I don't have either of those in my
kernel in the first place.
I've got this:
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
[...]
# Debugging for use in -current
options DDB #Enable the kernel debugger
options INVARIANTS #Enable calls of extra sanity checking
options INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS
options WITNESS #Enable checks to detect deadlocks and cycles
options WITNESS_SKIPSPIN #Don't run witness on spinlocks for speed
# To make an SMP kernel, the next two are needed
#options SMP # Symmetric MultiProcessor Kernel
#options APIC_IO # Symmetric (APIC) I/O
options IPSEC #IP security
options IPSEC_ESP #IP security (crypto; define w/ IPSEC)
# BRIDGE enables bridging between ethernet cards -- see bridge(4).
# You can use IPFIREWALL and DUMMYNET together with bridging.
#
options DUMMYNET
options BRIDGE
options IPFIREWALL #firewall
options IPFIREWALL_VERBOSE #enable logging to syslogd(8)
options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
options IPDIVERT #divert sockets
#options IPFILTER #ipfilter support
#options IPFILTER_LOG #ipfilter logging
#options IPFILTER_DEFAULT_BLOCK #block all packets by default
options IPSTEALTH #support for stealth forwarding
#options PFIL_HOOKS #required by IPFILTER
Everything else is pretty stock. How do I keep my machine from
rebooting?
Thanks!
--
Jesse Guardiani, Systems Administrator
WingNET Internet Services,
P.O. Box 2605 // Cleveland, TN 37320-2605
423-559-LINK (v) 423-559-5145 (f)
http://www.wingnet.net
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