Re: [ipw3945-devel] [PATCH 3/8] iwl3945 : fix rate scaling

[Helmut Schaa <helmut.schaa@googlemail.com>]

Am Donnerstag, 12. M=E4rz 2009 schrieb Maxim Levitsky:
> On Thu, 2009-03-12 at 10:50 -0700, reinette chatre wrote:
> > On Wed, 2009-03-11 at 19:29 -0700, Maxim Levitsky wrote:
> > > On Thu, 2009-03-12 at 03:29 +0200, Maxim Levitsky wrote:
[...]
> > > > On the other omitting  the 'disable_hw_scan=3D1' option (which =
appears to
> > > > work once again, since  few days ago it broke s2disk with hung =
scan) -
> > >=20
> > > Ah , I remember now. The disable_hw_scan=3D0 breaks (!)=20
> > > the rfkill support.
> >=20
> > Could you please provide more details about this issue? We are
> > interested in steps to reproduce and logs you may have.
>=20
> A way to reproduce (without NM):
>=20
> * Start scanning in a loop
> while true ; do sudo iwlist scan ; done
>=20
> * press rfkill - scan hangs forever.
> * press rfkill again - doesn't help
>=20
> I have acer 5720G with hardware rfkill.
>=20
>=20
> The problem seems to be that if user presses rfkill during scan, it
> hangs.

I had similar issues (with current wireless-testing) related to rfkill
and cfg80211-scanning. An "iwlist scan" only showed "Device or resource
busy" and cfg80211 was stuck in that state. Maybe your issue is related=
?
See [1] and [2] for details.

Helmut

[1] http://marc.info/?l=3Dlinux-wireless&m=3D123661005000427&w=3D2
[2] http://marc.info/?l=3Dlinux-wireless&m=3D123686313707477&w=3D2
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