This bug was filed against a series that is no longer supported and so
is being marked as Won't Fix. If this issue still exists in a supported
series, please file a new bug.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
The best description of this (and a way to actually work around it) can be
found here:
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/373680
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wpa_supplicant CTRL-EVENT-SCAN-RESULTS crashes ath9k wireless driver
https://bugs.launchpad.net/bugs/460886
You received this bug
Hi Neil,
This bug was reported a while ago and there hasn't been any activity in it
recently. We were wondering if this is still an issue? Can you try with the
latest development release of Ubuntu? ISO CD images are available from
http://cdimage.ubuntu.com/releases/ .
If it remains
'lspci' shows that my wireless hardware (on an Acer Aspire 5737z) is:
11:00.0 Network controller: Atheros Communications Inc. AR928X Wireless
Network Adapter (PCI-Express) (rev 01)
When I use the ath9k module installed by the linux-backports-
modules-2.6.31-19-generic package, the wireless
** Changed in: linux (Ubuntu)
Status: New = Incomplete
** Changed in: linux (Ubuntu)
Status: Incomplete = New
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wpa_supplicant CTRL-EVENT-SCAN-RESULTS crashes ath9k wireless driver
https://bugs.launchpad.net/bugs/460886
You received this bug notification because you are a member
It seems that the only user-oriented up-to-date distro I've managed to find
which doesn't have this nasty bug is Mandriva. Developers assigned for fixing
this one (if there will be any in the nearest decades) could take a look how
Mandriva guys managed to get around it.
For couple of months now
It looks like its a bug in ath5k modules. If so, maybe Mandriva has more
recent kernel modules?
http://bugzilla.kernel.org/show_bug.cgi?id=12635
Fair enough. One thing you can try in the interim is to add to your
wpa_supplicant.conf scan_freq=2412 2437 2462 -- that will limit the channels
that
Also:
Comment #3 From Bob Copeland 2009-04-02 11:29:01 ---
This patch *may* help, by reducing the total number of channels:
http://marc.info/?l=linux-wirelessm=123841474910111w=2
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wpa_supplicant CTRL-EVENT-SCAN-RESULTS crashes ath9k wireless driver
Is there any way of stopping the scanning, or decreasing its frequency?
--
wpa_supplicant CTRL-EVENT-SCAN-RESULTS crashes ath9k wireless driver
https://bugs.launchpad.net/bugs/460886
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
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Is there any plans to fix this bug in the near future? Please share any
info on this, since this bug leaves my and about 20 people laptops
completely useless (we have only wireless access).
sudo lshw -C network
*-network
description: Ethernet interface
product: 191
Just to clarify: the version in the PPA is ahead of the one in proposed.
I am providing pre-releases of the next proposed kernels.
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wpa_supplicant CTRL-EVENT-SCAN-RESULTS crashes ath9k wireless driver
https://bugs.launchpad.net/bugs/460886
You received this bug notification because you are a
Sorry Stefan. Helps if I read the instructions properly...
With 2.6.31-16.51~pre2 installed I have the same problem as it's the
same driver version 21B680AD1946884D70F623E
Comment #5 stands for that kernel version as well.
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wpa_supplicant CTRL-EVENT-SCAN-RESULTS crashes ath9k wireless
With the modules installed (2.6.31-16.18~pre2) I get stability but slow
speed (2.0 mbps) and no Bluetooth co-existence support (not that that
works anyway on this laptop yet).
filename: /lib/modules/2.6.31-16-generic/updates/cw/ath9k.ko
license:Dual BSD/GPL
description:Support
Note from Luis on the ath9k devel list about the pause during scanning.
If you leave your home channel you cannot be present for data on it.
One way to address this is to scan on each target channel and come
back the home channel, and repeat this for every channel you have to
scan. This is only
That is on driver version 21B680AD1946884D70F623E
filename:
/lib/modules/2.6.31-15-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko
license:Dual BSD/GPL
description:Support for Atheros 802.11n wireless LAN cards.
author: Atheros Communications
srcversion:
The backport modules (2.6.31.15.28) (which I think is based upon stable
compat-wireless-2.6.32-rc4) help a lot. I've had stability for several
hours on those drivers with no DMA stalls
The only downside is the the connection speed tends to be 11Mb/sec or
lower with a 40Mhz 802.11n AP. Entirely
The PPA at https://launchpad.net/~stefan-bader-canonical/+archive/karmic
contains the coming kernel update for Karmic. It fixes some issues with
ath9k, though I am not completely sure this issue is covered. But it
would be worth a try. If that does not help, the PPA also contains the
latest
The kernel currently in karmic-proposed stops the driver crashing on the
scan events. However the event still regularly kills the upper layer
throughput with the wireless layer still thinking it is connected
properly.
Doing a remove of the module at that point gets you
Nov 14 07:23:35
I believe I have the same, or at the least a very similar issue. These
constant CTRL-EVENT-SCAN-RESULTS by the wpa_supplicant are always the
last syslog entries on my system prior to the crash/freeze and my manual
restart. I also filed a bug report about this. It can be found here,
** Attachment added: AlsaDevices.txt
http://launchpadlibrarian.net/34382546/AlsaDevices.txt
** Attachment added: AplayDevices.txt
http://launchpadlibrarian.net/34382547/AplayDevices.txt
** Attachment added: ArecordDevices.txt
http://launchpadlibrarian.net/34382548/ArecordDevices.txt
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