FreeBSD 11.1-RELEASE-p13 fatal trap 12: page fault while in kernel mode

Rainer Duffner rainer at
Sun Sep 9 17:08:08 UTC 2018

After upgrading to 11.2-RELEASE-p2, the server constantly reboots instead of hanging at the crash-dump.

Still, I don’t get a crash dump in /var/crash

kern.corefile: %N.core
kern.coredump_devctl: 0
kern.nodump_coredump: 0
kern.coredump: 1
kern.capmode_coredump: 0
kern.sugid_coredump: 0
kern.coredump_pack_vmmapinfo: 1
kern.coredump_pack_fileinfo: 1
debug.ncores: 5
debug.elf32_legacy_coredump: 0
debug.elf64_legacy_coredump: 0
hw.ixl.core_debug_mask: 0

(server </root>) 0 # grep dump /etc/rc.conf
# Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable

(server </root>) 0 # cat /etc/fstab 
# Device		Mountpoint	FStype	Options		Dump	Pass#
/dev/mirror/swap		none	swap	sw		0	0

The server is zfs-only, all the drives hang on said SemiMicro smartpqi controller.

I actually have two of these and both randomly reboot every couple of hours. Or more like every hour.

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