Public bug reported:
Binary package hint: network-manager
In Ubuntu Intrepid, network-manager will fairly often begin to spin my
CPU and eat up RAM quickly (gaining about 3MB a second). I am connected
to wireless when this occurs, and often I have recently resumed from
suspend. (That said, I suspend/resume very frequently, so it may be
unrelated to it.) This machine is a clean install.
It appears to occur more frequently when I am consuming a lot of network
traffic, for instance, copying a large file over scp from a computer on
the local network.
Restarting NetworkManager (via /etc/init.d/NetworkManager restart) stops
the CPU spin.
My wireless card is an Intel Wireless 3945ABG. Here is its lspci -vv output:
05:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan]
Network Connection (rev 02)
Subsystem: Intel Corporation Device 1040
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 220
Region 0: Memory at f0800000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: iwl3945
Kernel modules: iwl3945
When the error occurs, my dmesg contains several error messages from the
iwl3945 driver. I have attached the portion of the dmesg output starting from
the resume.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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NetworkManager spins CPU and leaks memory
https://bugs.launchpad.net/bugs/345039
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