Tested this on my system (latest Ibex all updates amd64 2GB ram)
It runs fine for a while, and then suddenly starts consuming vast
amounts of swap and very heavy I/O. I captured both stages with 'top',
see below. At one point it used all but 30MB of my 1GB swap partition.
I retrieved about 70% of the image before it stalled.
The tab has been closed for 5 minutes or so now, but the swap hasn't
been released. The third 'top' output is from just now, firefox still
open but image tab closed.
Hope this helps the diagnosis.
top - 22:29:52 up 17 min, 2 users, load average: 1.17, 0.93, 0.60
Tasks: 128 total, 2 running, 126 sleeping, 0 stopped, 0 zombie
Cpu(s): 16.3%us, 33.2%sy, 0.0%ni, 47.5%id, 2.5%wa, 0.3%hi, 0.2%si, 0.0%st
Mem: 1926708k total, 1118660k used, 808048k free, 352k buffers
Swap: 995988k total, 29364k used, 966624k free, 59864k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5492 root 20 0 1877m 181m 9.8m R 83 9.7 4:07.97 Xorg
7359 user 20 0 1621m 571m 24m S 14 30.4 1:18.14 firefox
206 root 15 -5 0 0 0 S 1 0.0 0:01.00 kswapd0
5342 user 20 0 20052 1176 992 S 1 0.1 0:00.42 hald-addon-stor
5940 user 20 0 130m 9804 7536 S 1 0.5 0:02.42 metacity
7732 user 20 0 269m 25m 12m S 1 1.4 0:01.30 gnome-terminal
top - 22:37:05 up 24 min, 3 users, load average: 1.90, 1.68, 1.06
Tasks: 130 total, 2 running, 128 sleeping, 0 stopped, 0 zombie
Cpu(s): 4.4%us, 6.6%sy, 0.0%ni, 47.9%id, 40.6%wa, 0.2%hi, 0.3%si, 0.0%st
Mem: 1926708k total, 881992k used, 1044716k free, 284k buffers
Swap: 995988k total, 544180k used, 451808k free, 21056k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5492 root 20 0 2053m 87m 5944 S 14 4.7 6:47.79 Xorg
7359 user 20 0 1621m 588m 4948 R 6 31.3 1:54.51 firefox
7732 user 20 0 270m 10m 5624 S 3 0.5 0:05.82 gnome-terminal
5949 user 20 0 286m 7244 3480 S 1 0.4 0:06.60 gnome-panel
5970 user 20 0 191m 800 472 S 1 0.0 0:01.60 gnome-screensav
7755 user 20 0 19100 700 452 R 1 0.0 0:02.76 top
1 root 20 0 5240 180 180 S 0 0.0 0:01.56 init
2 root 15 -5 0 0 0 S 0 0.0 0:00.02 kthreadd
top - 22:54:57 up 42 min, 2 users, load average: 0.35, 0.77, 1.06
Tasks: 129 total, 1 running, 128 sleeping, 0 stopped, 0 zombie
Cpu(s): 1.6%us, 0.8%sy, 0.0%ni, 97.4%id, 0.0%wa, 0.2%hi, 0.0%si, 0.0%st
Mem: 1926708k total, 806836k used, 1119872k free, 1440k buffers
Swap: 995988k total, 675432k used, 320556k free, 44352k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
7359 user 20 0 1635m 493m 12m S 4 26.2 2:49.97 firefox
5492 root 20 0 332m 22m 6440 S 1 1.2 8:35.49 Xorg
7732 user 20 0 270m 5564 3068 S 1 0.3 0:09.58 gnome-terminal
7755 user 20 0 19100 712 456 R 1 0.0 0:08.00 top
--
Firefox can't handle 20mb jpeg from wikipedia.org
https://bugs.launchpad.net/bugs/284051
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