Introduction
There may be times where processes are unexplainable halting with nothing logged. There won't be dmesg output as the container doesn't have access to this level of the kernel logs.
Procedure
Check /proc/user_beancounters and observe any increases under the failcnt column. If there are then that container setting may need to be increased. This change is done on the node, not in the container itself.
# cat /proc/user_beancounters
Version: 2.5
uid resource held maxheld barrier limit failcnt
121: kmemsize 129066163 148774912 2147483646 2147483646 0
lockedpages 0 16 999999 999999 0
privvmpages 516758 786373 9999999 9999999 0
shmpages 1773 2093 786432 786432 0
dummy 0 0 9223372036854775807 9223372036854775807 0
numproc 403 537 999999 999999 0
physpages 415226 786432 0 786432 0
vmguarpages 0 0 786432 2147483647 0
oomguarpages 170906 295966 786432 2147483647 0
numtcpsock 116 208 7999992 7999992 0
numflock 63 112 999999 999999 0
numpty 2 3 500000 500000 0
numsiginfo 0 42 999999 999999 0
tcpsndbuf 2269216 8583584 214748160 396774400 0
tcprcvbuf 1927432 8788600 214748160 396774400 0
othersockbuf 389952 1269344 214748160 396774400 0
dgramrcvbuf 0 568008 214748160 396774400 0
numothersock 210 321 7999992 7999992 0
dcachesize 94936291 115654015 2147483646 2147483646 0
numfile 2893 6495 23999976 23999976 0
dummy 0 0 9223372036854775807 9223372036854775807 0
dummy 0 0 9223372036854775807 9223372036854775807 0
dummy 0 0 9223372036854775807 9223372036854775807 0
numiptent 55 241 999999 999999 0