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SubjectRe: [regression][2.6.38-rcX][net][iwlagn] WiFi signal after period of time tanks causing contant drops
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On Wed, 2011-02-09 at 23:15 -0800, Andrew Morton wrote:
> (cc linux-wireless)
>
> On Sun, 06 Feb 2011 22:54 -0500 Shawn Starr <shawn.starr@rogers.com> wrote:
>
> >
> > Using a Intel Corporation PRO/Wireless 5100 AGN [Shiloh] card after rebooting
> > and a period of of seveal hours signal begins to drop to low levels:
> >
> >
> > wlan0 IEEE 802.11abgn ESSID:"XXXXXXXX"
> > Mode:Managed Frequency:2.462 GHz Access Point: AA:BB:CC:DD:EE:FF
> > Bit Rate=11 Mb/s Tx-Power=15 dBm
> > Retry long limit:7 RTS thr:off Fragment thr:off
> > Power Management:off
> > Link Quality=12/70 Signal level=-98 dBm
> > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
> > Tx excessive retries:0 Invalid misc:35 Missed beacon:0
> >
> > ...
> >
> > Link Quality=12/70 Signal level=-98 dBm
> > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
> > Tx excessive retries:0 Invalid misc:40 Missed beacon:0
> >
> > I start seeing lots of Invalid misc errors and connection drops. If I reboot,
> > then signal will be back to normal for a period of time again.
> >
> > My official kernel is from Fedora rawhide (2.6.38-0.rc3.git4.1.fc15.x86_64)
> >
> > Anyone else notice poor link/signal levels?
> >
> > .37 showed no such issues.


did not see anything special from the log, is any environment or
condition changed? what AP you are using?

Thanks
Wey



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