Reproducible hard freeze on 5.1-CURRENT

Upon launching samba-2.2.8a (via ports) on the below system, the machine
immediately hard freezes. I've included interesting portions of kernel
config. Any suggestions how I can acquire more useful information ?

# uname -a
FreeBSD darwin 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Thu Jun  5 12:28:54 EDT
2003     root_at_darwin.blanchard.home:/usr/obj/usr/src/sys/darwin  i386

options         INCLUDE_CONFIG_FILE
ident           "darwin"
machine         i386
cpu             I686_CPU
options         SMP
options         APIC_IO
#options                ADAPTIVE_MUTEXES
#options                MUTEX_DEBUG
#options                MUTEX_PROFILING

makeoptions     DEBUG=-g
makeoptions     CONF_CFLAGS=-fno-builtin
options         KTRACE
options         KTRACE_REQUEST_POOL=101
options         DDB
options         DDB_TRACE
options         DDB_UNATTENDED
options         ALT_BREAK_TO_DEBUGGER
options         SHOW_BUSYBUFS
#options                WITNESS
#options                WITNESS_DDB
#options                WITNESS_SKIPSPIN
#options                INVARIANTS
#options                INVARIANT_SUPPORT
#options                DIAGNOSTIC

options         INET
options         TCPDEBUG
options         TCP_DROP_SYNFIN
options         RANDOM_IP_ID
options         ZERO_COPY_SOCKETS
options         IPFILTER
options         IPFILTER_LOG
options         IPFILTER_DEFAULT_BLOCK
options         PFIL_HOOKS
options         IPSTEALTH
options         IPSEC
options         IPSEC_ESP
options         IPSEC_DEBUG

#options        SCHED_4BSD
options         SCHED_ULE
options         COMPAT_43
options         COMPAT_FREEBSD4


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Robin P. Blanchard
Systems Integration Specialist
Georgia Center for Continuing Education
fon: 706.542.2404 <|> fax: 706.542.6546
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