Running: # uname -a ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? FreeBSD qbic 11.1-RELEASE-p1 FreeBSD 11.1-RELEASE-p1 #0: Wed Aug ?9 11:17:49 UTC 2017 ??? root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC ?i386 after some minutes running top, I can read: last pid: ??853; ?load averages: ?0.01, ?0.09, ?0.07 ????????????????????? up 0+00:08:18 ?14:38:05 27 processes: ?1 running, 26 sleeping CPU: ?0.0% user, ?0.0% nice, ?2.2% system, ?0.8% interrupt, 97.0% idle Mem: 24M Active, 3980K Inact, 79M Wired, 3137M Free ARC: 36M Total, 17M MFU, 18M MRU, 149K Anon, 870K Header, 800K Other ??? ??? 21?20mpressed, 352M Uncompressed, 16.94:1 Ratio Swap: Seconds to delay: ?PID USERNAME??? THR PRI NICE ??SIZE??? RES STATE ??C ??TIME??? WCPU COMMAND ?839 root ???????? 1 ?20??? 0 ?7328K ?2160K CPU0??? 0 ??0:00 ??0.04% top where the second ARC line is corrupted. Pressing Ctrl-L corrects the ARC lines.