Comment 24 for bug 289338

So, this morning, I had <100M of swap used. I left and came back in the afternoon to find this:

top - 18:33:11 up 23 days, 19:31, 66 users, load average: 0.40, 0.58, 0.45
Tasks: 185 total, 1 running, 184 sleeping, 0 stopped, 0 zombie
Cpu(s): 3.0%us, 2.7%sy, 0.0%ni, 93.9%id, 0.3%wa, 0.2%hi, 0.0%si, 0.0%st
Mem: 2057212k total, 2040096k used, 17116k free, 8264k buffers
Swap: 7807224k total, 4206896k used, 3600328k free, 221012k cached

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
25695 neil 20 0 5037m 1.2g 5824 S 4 61.5 48:39.43 kio_thumbnail
...

Note the swap usage and the memory usage for kio_thumbnail. Though I do have a Konqueror file manager open with a few tabs, I haven't interacted with it whatsoever since yesterday, and I don't use Dolphin.

Killing kio_thumbnail returns a few resources:

top - 18:38:49 up 23 days, 19:37, 66 users, load average: 0.23, 0.38, 0.40
Tasks: 182 total, 1 running, 181 sleeping, 0 stopped, 0 zombie
Cpu(s): 2.8%us, 2.0%sy, 0.0%ni, 94.0%id, 0.5%wa, 0.3%hi, 0.3%si, 0.0%st
Mem: 2057212k total, 765492k used, 1291720k free, 8852k buffers
Swap: 7807224k total, 1013696k used, 6793528k free, 242908k cached

...meaning it really was consuming nearly 5G of RAM, and completely unprovoked at that.