Bug 456834 - Loss of internet connectiviy, hangs at unloading iptables
Loss of internet connectiviy, hangs at unloading iptables
Product: Fedora
Classification: Fedora
Component: iptables (Show other bugs)
i686 Linux
low Severity high
: ---
: ---
Assigned To: Thomas Woerner
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2008-07-27 19:02 EDT by Scott Williams
Modified: 2009-06-03 04:42 EDT (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2009-06-03 04:42:49 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description Scott Williams 2008-07-27 19:02:35 EDT
Description of problem:

My connection stalls.  NetworkManager will still show I'm connected, but won't
reconnect, failing at getting an IP.

The only way I know how to fix it when this happens is to reboot, but it then
hangs on iptables: Unloading module.  It will hang there indefinitely and I have
to power off at this point.

When this issue is not happening, I can reboot with no errors.

Version-Release number of selected component (if applicable):


How reproducible:

Happens 1-2 times daily.

Steps to Reproduce:
1. Connect to wireless using Cisco Aironet with NetworkManager.
2. Use connection for several hours.
3. Observe sudden drop in connectivity and issue described above.
Actual results:

Network connectivity is unstable and reboot hangs.

Expected results:

Stable network connectivity and successful reboots.

Additional info:

Using an IBM ThinkPad T30 with Cisco Aironet card.
Comment 1 Thomas Woerner 2008-08-18 12:07:27 EDT
What exactly is hanging? The unload of a kernel module?
Comment 2 Scott Williams 2008-09-11 12:59:14 EDT
That is what was hanging on shutdown.  I set unload to "No" in the conf and I can shut it down with no errors, now hen I lose connection.  The connection loss still occasionally happens, and when it does I must reboot to reconnect.  it will actually still say I'm connected to a network, but I won't have any internet access, and won't be able to reconnect to the network with NetworkManager.  It seems to happen when the card is under a load for a time, such as when seeding torrents.
Comment 3 Scott Williams 2008-09-11 13:00:54 EDT
Sorry to be more specific, it is the iptables unloading the is hanging.  It happens for both IPv6 and IPv4 (If I disable IPv6 it hangs at IP instead).
Comment 4 Thomas Woerner 2008-10-15 07:11:36 EDT
Is there a hanging modprobe command?
Comment 5 Scott Williams 2009-02-14 23:49:36 EST
How would I check for this?  The only thing in my modprobe.conf is aliases related to my sound card.
Comment 6 Thomas Woerner 2009-02-16 07:58:26 EST
Have a look at the output of "ps aux". Is there is a "modprobe -r" command hanging around?
Comment 7 Thomas Woerner 2009-06-03 04:42:49 EDT
This bug entry was in needinfo for some time. Closing due to user inactivity as

Note You need to log in before you can comment on or make changes to this bug.