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SubjectRe: [Rt2400-devel] 2.6.25-rc2 regression in rt61pci wireless driver
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On Thursday 21 February 2008, Chris Vine wrote:
> On Thu, 2008-02-21 at 22:51 +0100, Ivo van Doorn wrote:
> > On Thursday 21 February 2008, Chris Vine wrote:
> [snip]
> > > Here's some further information.
> > >
> > > I have a fully functioning version of rt2x00-2.0.14 and mac80211 from
> > > wireless-2.6/compat-wireless-2.6 of mid January which works fine on
> > > kernel 2.6.24. On doing a comparison with the rt2x00 in vanilla kernel
> > > 2.6.25-rc2, there are no material differences. (There was a slight
> > > change in the declaration a variable in rt2x00usb.c but it is
> > > immaterial.)
> > >
> > > I compiled up the working mid-January version of rt2x00 and mac80211
> > > under kernel 2.6.25-rc2 and I get exactly the same result as I reported
> > > earlier, namely I get a kernel panic as soon as I try to associate. It
> > > looks therefore as if something has changed within the remainder of the
> > > kernel which has caused rt2x00 (and possibly mac80211?) to break.
> > >
> > > This probably explains the problem another user reported with rt61.
> >
> > Perhaps something similar like:
> > http://bugzilla.kernel.org/show_bug.cgi?id=10058
> > in there a reference is made to the following patch:
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.25-rc2/2.6.25-rc2-mm1/broken-out/revert-send-a-single-notification-on-device-state-changes.patch
> >
> > Does applying that help?
>
> Yes, well done.
>
> I have spent 20 minutes testing it and it seems to work fine (at least
> as well as 2.0.14 does under kernel 2.6.24). The rate control algorithm
> seems to work better as well, but that is probably a mac80211 thing.

Excellent, I am currently updating rt2x00.git from wireless-testing to get
the above mentioned patch into the repository.

Ivo



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