[Bug 549223] [NEW] iwlagn stops transferring after few MB data transfer at 5GHz 11n mode

[Mario Sánchez]

Public bug reported:

As described in https://bugzilla.redhat.com/show_bug.cgi?id=571753, same
problem was observed in ubuntu lucid lynx today:

Description of problem:
iwlagn stops transferring all data after few MB data transfer at 5GHz 11n mode.
For example, while viewing some web pages, all data transferring are stopped.

Version-Release number of the distribution:
Description:	Ubuntu lucid (development branch)
Release:	10.04

Version-Release number of selected component (if applicable):
Linux 2.6.32-17-generic i686 GNU/Linux

How reproducible:

Steps to Reproduce:
1. connect AP with 5GHz 11n mode.
2. transfer some MBytes data. (ex. viewing some web pages)
3. all data transfer are stopped. ping fails sending data with message "ping:
sendmsg: No buffer space available". You can also realize of this problem by observing a iwl_tx_agg_start message like this one in the output of 'dmesg':
[  676.468986] iwlagn 0000:03:00.0: iwl_tx_agg_start on ra = 00:23:69:26:cd:24 tid = 0

Actual results:
All data transferring are stopped.

Expected results:
All data transferring are continued.

Additional info:

Original description at:
https://bugzilla.redhat.com/show_bug.cgi?id=571753

The same problem is also describd in this (duplicate) bug:
https://bugzilla.redhat.com/show_bug.cgi?id=574885

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  As described in https://bugzilla.redhat.com/show_bug.cgi?id=571753, same
  problem was observed in ubuntu lucid lynx today:
  
  Description of problem:
  iwlagn stops transferring all data after few MB data transfer at 5GHz 11n mode.
  For example, while viewing some web pages, all data transferring are stopped.
  
  Version-Release number of the distribution:
  Description:	Ubuntu lucid (development branch)
  Release:	10.04
  
  Version-Release number of selected component (if applicable):
- kernel-2.6.32.9-67.fc12
+ Linux 2.6.32-17-generic i686 GNU/Linux
  
  How reproducible:
  
  Steps to Reproduce:
  1. connect AP with 5GHz 11n mode.
  2. transfer some MBytes data. (ex. viewing some web pages)
  3. all data transfer are stopped. ping fails sending data with message "ping:
  sendmsg: No buffer space available". You can also realize of this problem by observing a iwl_tx_agg_start message like this one in the output of 'dmesg':
  [  676.468986] iwlagn 0000:03:00.0: iwl_tx_agg_start on ra = 00:23:69:26:cd:24 tid = 0
- 
- Version-Release number of selected component (if applicable):
- Linux 2.6.32-17-generic i686 GNU/Linux
  
  Actual results:
  All data transferring are stopped.
  
  Expected results:
  All data transferring are continued.
  
  Additional info:
  
  Original description at:
  https://bugzilla.redhat.com/show_bug.cgi?id=571753
  
- The same problem is also describd in this (duplicate) bug: 
+ The same problem is also describd in this (duplicate) bug:
  https://bugzilla.redhat.com/show_bug.cgi?id=574885

-- 
iwlagn stops transferring after few MB data transfer at 5GHz 11n mode
https://bugs.launchpad.net/bugs/549223
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to linux in ubuntu.