EG> Это crashinfo, не crashdump. В крешдампе будет backtrace, именно он и нужен.
Что-то тут не чисто:
root@server:/usr/obj/usr/src/amd64.amd64/sys/GENERIC# kgdb /boot/kernel/kernel /var/crash/vmcore.last GNU gdb (GDB) 8.2 [GDB v8.2 for FreeBSD] Copyright (C) 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-portbld-freebsd12.0". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>.
For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /boot/kernel/kernel...(no debugging symbols found)...done. 0xffffffff80c370dd in sched_switch () (kgdb)
