[syslog-ng]Problem with 1.6.2 on Solaris 8 - lwp_sema_wait(0xFEF0DE60)

[Wyner, Peter]

All,

I am running into an issue on a previously working syslog_ng 1.6.2 server.
There were no configuration changes between when it worked and now (when it
doesn't).  The syslog sever will process a large number of packets for a
period of time and then suddenly the processor utilization goes down to
zero, files stop being written, and truss shows:

door_call(6, 0xFFBED340)        (sleeping...)
signotifywait()                 (sleeping...)
lwp_sema_wait(0xFEF0DE60)       (sleeping...)


I am collecting syslog on a high udp port:


#
# Syslog-ng example configuration file for Solaris
#
# Copyright (c) 1999 Balazs Scheidler
# $Id: syslog-ng.conf.solaris,v 1.2 1999/11/15 12:30:41 bazsi Exp $
#
# Solaris 2.5.1 and below uses the STREAMS driver, above extends it
# with doors. For 2.5.1 remove the door() option from the source
declaration.
#

options {
log_fifo_size(1024);
sync(0);
dns_cache(yes);
dns_cache_expire(60);
use_dns(yes);
chain_hostnames(no);
keep_hostname(no);
};

source local { sun-streams("/dev/log"); internal(); };
source std_udp { udp( port(52001) ); };

destination all { file("/var/log/messages"); };
destination dst1 { file("/syslog/dst1/current/$HOST" dir_perm(0755)
perm(0644)); };

log { source(local); destination(all); };
log { source(std_udp); destination(dst1); };


Any ideas?

Thanks,

Peter