Yesterday morning I found my machine was running three processes that were pegging three cores. Two processes were named "i686" and one was "x86_64", as displayed by system monitor panel. Figuring they were associated with the kernel, I didn't kill them, but instead rebooted. That took care of it for the rest of the day. Now this morning I come in and find those three processes again, pegging three cores. All three processes started around 1 AM and were still running at 8 AM. I don't have a screen saver running. When I run ps -ef | grep < PID>, I get the following:
UID PID PPID C STIME TTY TIME CMD admin 15071 1 96 01:09 ? 07:02:51 /usr/sbi <-- "x86-64" admin 15080 1 96 01:09 ? 07:11:57 /usr/s <-- "i686" admin 10274 1 97 Oct06 ? 11:39:06 /usr/s <-- "i686"
Anybody else seeing this? How can I determine what is launching it? What is /usr/s ?
EDIT: I manually killed the processes and my machine is running fine, so they aren't critical system processes.
I'm running Ubuntu 14.04 64-bit.