Red Hat Bugzilla – Bug 447198
Monitor mode on a 4965AGN card
Last modified: 2008-06-12 13:55:07 EDT
Description of problem:
Monitor mode on a 4965AGN card doesnt work (IWLWIFI).
Problem has been reported on
Patch exists and tested by myself (and others) on 4965 chipset:
NB: Presence of multiple messages in /var/log/messages => "iwl4965: byte count
out of range [16.4K] : 10" due to the driver
filtering-out 802.11 ACK packets, which are only 10 bytes long (this is less
important than having monitor mode)
precision: this bug is obviously also in fedora 8
I have yet to see this patch upstream. Care to prod the Intel folks into
Ah, but it looks like a version of this one has been posted:
Author: Abhijeet Kolekar <email@example.com>
Date: Mon May 5 10:22:47 2008 +0800
iwlwifi : Set monitor mode for 4965
The patch leverages mac80211 configure_filter to enable iwl4965
Signed-off-by: Abhijeet Kolekar <firstname.lastname@example.org>
Signed-off-by: John W. Linville <email@example.com>
This should be included in the kernels here:
Do those kernels resolve the issue for you?
The patch you mention only applys to iwl3945 (id=1381).
Can you check if the monitor mode has been included in this version for chipset
4965 (id=1377) => just need to check if iwl4965-base.c / iwl-4965.c are modified
according to the patch I reported (I saw the linux-2.6-wireless-pending.patch,
and it seems ok)
Apparently, these kernels are still not available for F8, am I right ?
Any info of when they will be in stable repos ? (Im stuck with a home made
kernel at this time)
There are both 3945 and 4965 versions of the patch in question. Please note the
"4965" in the commit I referenced. :-)
The equivalent F8 kernels are available here:
They are not yet available in the normal yum updates repository. Could you give
them a try from Koji?
Ok, i'll test the kernel as soon as kmod-nvidia / xorg-x11-drv-nvidia /
xorg-x11-drv-nvidia-libs are available ;)
I'll keep you informed, tx for infos/help
I can confirm that this bug for monitor mode is fixed by this kernel.
No info at the moment about 802.11 ACK packets (10 bytes long) which were dumped
in /var/log/messages => It may be correct to.
I perhaps answered too quickly, because even if the monitor mode worked, I tried
two times to connect to my WiFi network, and I got a system freeze ... (kernel
I switched back to my old kernel and I got no troubles (except the ACK packets,
which is less important).
Kernel in question is: kernel-2.6.25-0.121.rc5.git4 + 4965 monitor patch (id=1377).
Im trying to figure if there are valuable informations in the /var/log/messages
NB: I can give you kernel-2.6.25-0.121.rc5.git4.fc8.src.rpm I use if it can help
(I even kept my rpmbuild env for this kernel)
I'm closing this on the basis of comment 7. If you continue to have the
problems discussed in comment 8 then please open a new bug.