Magic: FreeBSD Kernel Dump Version String: FreeBSD 10.0-STABLE #0 r266808: Wed May 28 19:13:24 MSK 2014 root at inter.trade.spb.ru:/usr/obj/usr/src/sys/TRADE Panic String: __lockmgr_args: downgrade a recursed lockmgr zfs @ /usr/src/sys/modules/unionfs/../../fs/unionfs/union_vnops.c:1906 Dump Parity: 1636454732 Bounds: 1 Dump Status: good I have core.txt.1 and vmcore.1. I can run gdb on it or put on http server.