After I started Firefox 3.5.7 error occurred again in logs (viz. kern.log in my comment #8).
Jan 22 09:33:31 sweetie kernel: [60169.431301] wlan0: no IPv6 routers present Jan 22 10:36:02 sweetie kernel: [63919.446888] swapper: page allocation failure. order:2, mode:0x4020 Jan 22 10:36:02 sweetie kernel: [63919.446893] Pid: 0, comm: swapper Not tainted 2.6.32-11-generic #15-Ubuntu Jan 22 10:36:02 sweetie kernel: [63919.446896] Call Trace: ... Jan 22 10:36:02 sweetie kernel: [63919.454216] iwlagn 0000:03:00.0: Failed to allocate SKB buffer with GFP_ATOMIC. Only 0 free buffers remaining. Jan 22 10:36:39 sweetie kernel: [63957.252658] swapper: page allocation failure. order:2, mode:0x4020 Jan 22 10:36:39 sweetie kernel: [63957.252669] Pid: 0, comm: swapper Not tainted 2.6.32-11-generic #15-Ubuntu Jan 22 10:36:39 sweetie kernel: [63957.252675] Call Trace: ...
$ ps auxf USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND ziegleka 8602 40.8 42.0 1648560 836104 ? Rl 10:33 31:33 /usr/lib/firefox-3.5.7/firefox https://bugs.launchpad.net/ubuntu/+source/linux/+filebug/h7dWUUDvQ1MfQOtg0bVS2G6S9HR?
$ free -m total used free shared buffers cached Mem: 1939 1762 177 0 6 77 -/+ buffers/cache: 1678 261 Swap: 4095 279 3816
After I started Firefox 3.5.7 error occurred again in logs (viz. kern.log in my comment #8).
Jan 22 09:33:31 sweetie kernel: [60169.431301] wlan0: no IPv6 routers present
Jan 22 10:36:02 sweetie kernel: [63919.446888] swapper: page allocation failure. order:2, mode:0x4020
Jan 22 10:36:02 sweetie kernel: [63919.446893] Pid: 0, comm: swapper Not tainted 2.6.32-11-generic #15-Ubuntu
Jan 22 10:36:02 sweetie kernel: [63919.446896] Call Trace:
...
Jan 22 10:36:02 sweetie kernel: [63919.454216] iwlagn 0000:03:00.0: Failed to allocate SKB buffer with GFP_ATOMIC. Only 0 free buffers remaining.
Jan 22 10:36:39 sweetie kernel: [63957.252658] swapper: page allocation failure. order:2, mode:0x4020
Jan 22 10:36:39 sweetie kernel: [63957.252669] Pid: 0, comm: swapper Not tainted 2.6.32-11-generic #15-Ubuntu
Jan 22 10:36:39 sweetie kernel: [63957.252675] Call Trace:
...
$ ps auxf firefox- 3.5.7/firefox https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ filebug/ h7dWUUDvQ1MfQOt g0bVS2G6S9HR?
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
ziegleka 8602 40.8 42.0 1648560 836104 ? Rl 10:33 31:33 /usr/lib/
$ free -m
total used free shared buffers cached
Mem: 1939 1762 177 0 6 77
-/+ buffers/cache: 1678 261
Swap: 4095 279 3816