[SOLVED]iwlagn problem after kernel update

Question

yesterday i updated kernel to 2.6.32.10. after reboot kernel.log started with messages like:
Mar 17 09:59:43 laptop kernel: iwlagn 0000:04:00.0: free more than tfds_in_queue (0:1)
log creates that message when i do something online. looks like every time i reload page/ping/do anything online that message goes to kernel.log.
the thing that
worries me is this:
% cat /var/log/kernel.log | grep tfds_in_que | wc -l
20106
my computer is up for less than an hour.
wlan card is intel 5100
does anyone have any suggestion? go back to kernel 2..6.32.9?
EDIT: everything else works fine. wlan is working without a problem.
Last edited by devil_kc (2010-04-10 17:37:20)

Answer 1

i confirm that have the same problem
Network controller: Intel Corporation Wireless WiFi Link 5100
[root@hermes ~]# cat /var/log/kernel.log|grep tfds_in_queue|wc -l
40871
[root@hermes ~]# uptime
20:52:08 up 1:18, 2 users, load average: 0.00, 0.02, 0.05
this is really nasty
from changelog on kernel.org  i find this:
commit 44af042e42f2231579ea8ef7586d3789d198f609
Author: Stanislaw Gruszka <[email protected]>
Date:   Fri Feb 19 15:47:33 2010 -0800
    iwlwifi: sanity check before counting number of tfds can be free
    commit a120e912eb51e347f36c71b60a1d13af74d30e83 upstream.
    Check the frame control for ieee80211_is_data_qos() is true before
    counting the number of tfds can be free, the tfds_in_queue only
    increment when ieee80211_is_data_qos() is true before transmit; so it
    should only decrement if the type match.
    Remove ieee80211_is_data_qos check for frame_ctrl in tx_resp to avoid
    invalid information pass from uCode.
    Signed-off-by: Stanislaw Gruszka <[email protected]>
    Signed-off-by: Wey-Yi Guy <[email protected]>
    Signed-off-by: Reinette Chatre <[email protected]>
    Signed-off-by: John W. Linville <[email protected]>
    Signed-off-by: Greg Kroah-Hartman <[email protected]>
Last edited by icarus-c (2010-03-17 09:56:00)