Comment 40 for bug 203016

I can confirm this serious bug is still occurring on up-to-date Intrepid as of 2008-12-09.

Pentium 3.0Ghz hyperthreading 1GB RAM, 1.5GB swap, using wired but have wireless adaptor installed as well.

I was using Ubuntu 8.04 successfully. Did an upgrade to 8.10, and had this runaway NetworkManager problem. Since there were other issues related to a problematic upgrade, wiped hdd and installed a clean 8.10, which fixed the other issues but the NetworkManager problem reoccurred.

NetworkManager About dialog reports version 0.7.

Upon bootup NetworkManager process starts consuming memory, confirmed in System Monitor. Within 15-60 minutes it has consumed 600-800MB slowing the system to a crawl and eventually Ubuntu stops responding. Executing "sudo killall NetworkManager" before this point clears the consumed memory and returns the system to a stable ~200MB memory. Executing "sudo NetworkManager" causes the runaway memory problem to begin again.

Below is some output of /var/log/syslog when the NetworkManager process is running.

Dec 9 17:20:23 myksrv kernel: [ 463.776477] [<c02147d8>] ? cap_file_ioctl+0x8/0x10
Dec 9 17:20:23 myksrv NetworkManager: <WARN> nm_error_monitoring_device_link_state(): error monitoring wired ethernet link state: error occurred while waiting for data on socket
Dec 9 17:20:23 myksrv last message repeated 8 times
Dec 9 17:20:23 myksrv kernel: [ 463.776487] [<c01bf27b>] sys_ioctl+0x6b/0x70
Dec 9 17:20:23 myksrv NetworkManager: <WARN> nm_error_monitoring_device_link_state(): error monitoring wired ethernet link state: error occurred while waiting for data on socket
Dec 9 17:20:23 myksrv last message repeated 10 times
Dec 9 17:20:23 myksrv kernel: [ 463.776495] [<c0103f7b>] sysenter_do_call+0x12/0x2f
Dec 9 17:20:23 myksrv NetworkManager: <WARN> nm_error_monitoring_device_link_state(): error monitoring wired ethernet link state: error occurred while waiting for data on socket
Dec 9 17:20:23 myksrv last message repeated 6 times
Dec 9 17:20:23 myksrv kernel: [ 463.776503] =======================
Dec 9 17:20:23 myksrv NetworkManager: <WARN> nm_error_monitoring_device_link_state(): error monitoring wired ethernet link state: error occurred while waiting for data on socket
Dec 9 17:20:54 myksrv last message repeated 305320 times
Dec 9 17:21:44 myksrv last message repeated 495634 times
Dec 9 17:21:44 myksrv kernel: [ 543.947734] wlan0: association FAILED: peer sent Status Code 10 (Cannot support all requested capabilities in Capability Information field)
Dec 9 17:21:44 myksrv NetworkManager: <WARN> nm_error_monitoring_device_link_state(): error monitoring wired ethernet link state: error occurred while waiting for data on socket
Dec 9 17:22:00 myksrv last message repeated 159869 times