I'm on 13.04 in a Thinkpad T61. As of ~Sep 27 (I updated) the cursor
become jumpy, seems watchdog is to be blamed:
top - 10:50:36 up 14:05, 3 users, load average: 1.10, 1.41, 1.44
Tasks: 224 total, 2 running, 221 sleeping, 1 stopped, 0 zombie
%Cpu(s): 4.8 us, 18.5 sy, 0.3 ni, 75.1 id, 0.0 wa, 0.0 hi, 1.3 si, 0.0 st
KiB Mem: 2008832 total, 1887936 used, 120896 free, 152048 buffers
KiB Swap: 2053116 total, 45204 used, 2007912 free, 608248 cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12 root rt 0 0 0 0 S 59.2 0.0 59:27.37 watchdog/1
<=========
3854 root 20 0 0 0 0 R 9.6 0.0 1:05.65 kworker/1:1
2033 jlanus 20 0 1439m 68m 21m S 4.0 3.5 5:32.94 compiz
1130 root 20 0 315m 37m 19m S 2.3 1.9 3:16.05 Xorg
2051 jlanus 20 0 556m 12m 9312 S 1.3 0.7 3:00.65 indicator-multi
2297 jlanus 20 0 609m 23m 12m S 1.3 1.2 3:10.58 unity-panel-ser
2299 jlanus 20 0 545m 6484 3540 S 1.0 0.3 1:54.10 hud-service
1082 mongodb 20 0 341m 32m 3144 S 0.7 1.7 1:03.78 mongod
1278 root 35 15 22008 8216 968 S 0.7 0.4 0:20.58 preload
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https://bugs.launchpad.net/bugs/1010855
Title:
watchdog/0 100% cpu usage
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