At 10:49 PST the daqd process on h1nds1 restarted itself. This is the default NDS for the workstations.

dmesg reports daqd segfaulted, and then monit restarted the process.

[6728271.848460] dqprod used greatest stack depth: 2928 bytes left
[6728344.956938] dqepics[32031]: segfault at 0 ip (null) sp 00007f7840439fb8 error 14 in daqd-3.2-r4285[400000+8d000]
[6729234.107738] dql8088[32209]: segfault at 8 ip 000000000043acdf sp 00007f5ec3fd0180 error 4 in daqd-3.2-r4285[400000+8d000]

the log file does not show any unusual data requests around this time.