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Re: [ath5k-devel] var/log/messages filling quickly

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Bob Copeland wrote:
> On Wed, Dec 30, 2009 at 9:42 AM, Lucian  andor <lucisandor@xxxxxxxxx> wrote:
> > Hi all,
> > I run an Ad-hoc network, using a SuSE 11.2 computer, kernel 2.6.32-5.5
> > from SuSE (probably modifed by them.) If I turn off all the other
> > computers in the network, the ath5k/kernel combination writes 20 times
> > per second to the system log /var/log/messages:
> >
> > Dec 28 14:10:31 battlecruiser kernel: [  929.933020] wlan0: No active
> > IBSS STAs - trying to scan for other IBSS networks with same SSID
> > (merge)
> 
> Turn off CONFIG_MAC80211_IBSS_DEBUG in the kernel config
> (or ask SuSE to do the same).  You can't turn it off at
> runtime, but you could turn off kernel debug messages in
> syslogd.
> 
> However, this is only supposed to happen every 30s if I
> read the code right.  Maybe someone on linux-wireless
> knows how this can happen?

This patch (in Linus' tree) apparently didn't make it to 2.6.32.

commit 450aae3d7b60a970f266349a837dfb30a539198b
Author: Sujith <Sujith.Manoharan@xxxxxxxxxxx>
Date:   Mon Nov 2 12:33:23 2009 +0530

    mac80211: Fix IBSS merge

    Currently, in IBSS mode, a single creator would go into
    a loop trying to merge/scan. This happens because the IBSS timer is
    rearmed on finishing a scan and the subsequent
    timer invocation requests another scan immediately.

    This patch fixes this issue by checking if we have just completed
    a scan run trying to merge with other IBSS networks.

    Signed-off-by: Sujith <Sujith.Manoharan@xxxxxxxxxxx>
    Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>


Sujith
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