Periodically NetworkManager seems to hog the CPU for minutes at a time. Snapshot:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2128 root 15 0 36516 2444 1356 S 12.0 0.2 138:15.30 NetworkManager
2597 sd 15 0 598m 311m 73m R 0.7 31.1 256:16.31 firefox-bin
2224 root 15 0 579m 181m 9216 R 0.3 18.1 48:07.32 Xorg
2332 sd 15 0 15576 1264 1000 S 0.3 0.1 13:52.50 tpb
As I write this, it's gone quiet again. But as you can see from above it adds up
over time. (uptime 2days above)
It doesn't seem related to network activity or dropouts or changing network.
This is a new problem (since I upgraded from FC6? Can't be sure, but seems recent)
This machine has an atheros chipset. I'm using the madwifi driver from livna:
Does this still happen with NM 0.6.6 which is available from F7 updates?
Don't know about F7 (no box to test), but it doesn't happen with F8.