[DF4919] loaded: sysctl hw.df4919_test=1|2|3 (needs drm.ko loaded first: kldload drm)
[DF4919] test=1 mode=cancel_work_sync panic_on_hit=0: feeder+2 cancellers (or feeder+flusher) hammering one work; probing the unlocked flag reads at _cancel_work():364 / flush_work():331 against the worker transition (:74->:87) and the queue_work() insert publication (:138->:141)
[DF4919] HIT (real=0) ring (oldest first): 3:277272 3:277273 5:0 2:0 3:277273 2:0 3:277246 3:277247 3:277248 3:277249 3:277250 3:277251 3:277252 3:277253 3:277254 3:277255 3:277256 3:277257 3:277258 3:277259 3:277260 3:277261 3:277262 3:277263 3:277264 3:277265 3:277266 3:277267 3:277268 3:277269 3:277270 3:277271 ringidx=266695
[DF4919] HIT (real=0) ring (oldest first): 3:1173804 3:1173805 3:1173805 3:1173806 3:1173808 3:1173809 3:1173810 3:1173811 3:1173812 3:1173813 3:1173814 3:1173815 3:1173816 3:1173817 3:1173818 3:1173819 3:1173820 3:1173821 3:1173822 3:1173812 3:1173825 3:1173793 3:1173827 3:1173828 5:0 2:0 2:0 3:1173799 3:1173800 3:1173801 3:1173802 3:1173803 ringidx=1110107
[DF4919] HIT (real=0) ring (oldest first): 3:1302970 3:1302972 3:1302973 3:1302975 3:1302975 3:1302977 3:1302977 3:1302979 3:1302981 3:1302946 5:0 2:0 2:0 3:1302916 3:1302950 3:1302951 3:1302952 3:1302953 3:1302954 3:1302956 3:1302957 3:1302959 3:1302959 3:1302961 3:1302962 3:1302961 3:1302963 3:1302966 3:1302966 3:1302968 3:1302968 3:1302969 ringidx=1230990
[DF4919] HIT (real=0) ring (oldest first): 3:1446880 3:1446881 3:1446882 3:1446883 3:1446884 3:1446885 3:1446886 5:0 2:0 2:0 3:1446858 3:1446859 3:1446860 3:1446861 3:1446862 3:1446863 3:1446864 3:1446865 3:1446866 3:1446867 3:1446868 3:1446869 3:1446870 3:1446871 3:1446872 3:1446873 3:1446874 3:1446875 3:1446876 3:1446877 3:1446878 3:1446879 ringidx=1374731
[DF4919] HIT (real=0) ring (oldest first): 3:1491314 3:1491316 3:1491316 3:1491317 3:1491319 3:1491320 3:1491322 3:1491324 3:1491324 3:1491326 3:1491328 3:1491329 3:1491330 3:1491331 3:1491333 3:1491335 3:1491336 3:1491337 3:1491338 3:1491340 3:1491340 3:1491341 3:1491342 3:1491343 5:0 2:0 2:0 2:0 3:1491308 3:1491310 3:1491312 3:1491312 ringidx=1418620
[DF4919] HIT (real=0) ring (oldest first): 3:1501640 3:1501641 3:1501642 3:1501643 5:0 2:0 2:0 3:1501615 3:1501616 3:1501617 3:1501618 3:1501619 3:1501620 3:1501621 3:1501622 3:1501623 3:1501624 3:1501625 3:1501626 3:1501627 3:1501628 3:1501629 3:1501630 3:1501631 3:1501632 3:1501633 3:1501634 3:1501635 3:1501636 3:1501637 3:1501638 3:1501639 ringidx=1428807