I reported this problem previously on redhat-list@xxxxxxxxxx possibly in relation to the leap second. We see now that the leap second may have been coincidental. I am running a rather complex libipq daemon, which may be related to this. I am also running tethereal in the background on this box. I note that while previously the failure occurred on two boxes, in this case, only one box failed. I am considering upgrading to the latest fedora. On: Red Hat Enterprise Linux WS release 4(Nahant) Kernel 2.6.9-5.EL on an i686 I get: Kernel panic - not syncing: net/ipv4/tcp_timer.c:yyy: spin_lock(net/ipv4/tcp_minisocks.c:xxxxxxxx) already locked by net/ipv4/tcp_ipv4.c/1790 previous now yyy 211 422 xxxxxxxx f5fee080 f62db080 Suggestions would be much appreciated. Mike. -- Michael D. Berger m.d.berger@xxxxxxxx -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list