$ dmesg -a | fgrep -A1 savecore savecore: reboot after panic: vm_fault: fault on nofault entry, addr: fffffe0006140000 savecore: writing compressed core to /var/crash/vmcore.1.gz /var/crash/vmcore.1 not found $ crashinfo /var/crash/vmcore.1 not found $ sysrc savecore_flags savecore_flags: -z $ ls -l /var/crash/vmcore.1* -rw------- 1 root wheel 224M Sep 4 10:16 /var/crash/vmcore.1.gz $ gunzip /var/crash/vmcore.1.gz $ ls -l /var/crash/vmcore.1* -rw------- 1 root wheel 998M Sep 4 10:16 /var/crash/vmcore.1
This was implemented in https://cgit.freebsd.org/src/commit/?id=6f77212f270f7644575fe3705ed2596eafe0577d ^Triage: assigning to committer who resolved the issue.