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Re: Problem connecting to wifi on libertas_cpio (sd8686)

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On Wed, 2016-07-20 at 02:53 -0700, Christopher Williamson wrote:
> Just following up from my previous email:
> 
> I am actually setting the reg domain using: iw reg set GB
> (copy/pasted
> the IN from elsewhere - oops!)
> 
> As for progress, however, I have tried the following:
> 
> - setting the debug level to 0xfffffff. This still produces no
> additional output even with 8 set in printk.

Yeah, looks like you'd need to rebuild the libertas driver with
CONFIG_LIBERTAS_DEBUG set.  Or just #define that to 1 in defs.h.  Is
that something you could do?

Dan

> - removing the v9 firmware - same result as before - system fully
> locks up.
> 
> - disabling ipv6 - gets rid of IPv6 interface not up warning but
> that’s not causing any problems and this didn’t make any difference.
> 
> It doesn’t seem to matter what I try at the moment - all attempts to
> connect result in the system crashing which I guess is better than it
> just asking me for a password over and over - it looks like it is
> attempting association at this point which is good but I don’t know
> why the box is crashing out and dmesg -w doesn’t show any additional
> output before the freeze.
> 
> If anyone has any more ideas I would be more than happy to try them!
> Thanks for the help so far Dan!
> 
> Christopher Williamson
> 
> On 19 July 2016 at 18:41:34, Christopher Williamson
> (home@xxxxxxxxxxx(mailto:home@xxxxxxxxxxx)) wrote:
> 
> > 
> > So I’ve now disabled IPv6 and have set the GB (Great Britain)
> > regulation code using:
> > 
> > iw reg set IN
> > 
> > Now when I try to connect to the network using wicd the system
> > seems to crash - I guess at least it’s doing something more than
> > just asking for the password again like it did with NetworkManager
> > but so far no further progress on getting this working properly.
> > 
> > Christopher Williamson
> > 
> > 
> > 
> > On 19 July 2016 at 18:03:16, Christopher Williamson (home@chrisaw.c
> > om(mailto:home@xxxxxxxxxxx)) wrote:
> > 
> > > 
> > > Absolutely!
> > > 
> > > With the debug logging enabled I got the following:
> > > 
> > > Connecting the device initially with debug enabled:
> > > 
> > > [ 205.302685] libertas_sdio: Libertas SDIO driver
> > > [ 205.302698] libertas_sdio: Copyright Pierre Ossman
> > > [ 205.503465] cfg80211: World regulatory domain updated:
> > > [ 205.503478] cfg80211: DFS Master region: unset
> > > [ 205.503483] cfg80211: (start_freq - end_freq @ bandwidth),
> > > (max_antenna_gain, max_eirp), (dfs_cac_time)
> > > [ 205.503492] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz),
> > > (N/A, 2000 mBm), (N/A)
> > > [ 205.503499] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz),
> > > (N/A, 2000 mBm), (N/A)
> > > [ 205.503505] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz),
> > > (N/A, 2000 mBm), (N/A)
> > > [ 205.503513] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz,
> > > 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
> > > [ 205.503522] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz,
> > > 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
> > > [ 205.503529] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz),
> > > (N/A, 2000 mBm), (0 s)
> > > [ 205.503535] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz),
> > > (N/A, 2000 mBm), (N/A)
> > > [ 205.503542] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000
> > > KHz), (N/A, 0 mBm), (N/A)
> > > [ 212.249171] gma500 0000:00:02.0: Backlight lvds set brightness
> > > 7a127a12
> > > [ 212.324898] mmc1: new SDIO card at address 0001
> > > [ 212.921672] libertas_sdio mmc1:0001:1 (unnamed net_device)
> > > (uninitialized): 00:02:78:69:49:94, fw 9.70.20p0, cap 0x00000303
> > > [ 212.925774] libertas_sdio mmc1:0001:1 (unnamed net_device)
> > > (uninitialized): PREP_CMD: command 0x00a3 failed: 2
> > > [ 212.936190] libertas_sdio mmc1:0001:1 wlan0: Marvell WLAN
> > > 802.11 adapter
> > > [ 213.053612] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
> > > 
> > > 
> > > Strangely when I attempt to connect to the WiFi network I’m using
> > > the only error I get is:
> > > 
> > > [ 338.076632] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
> > > 
> > > I was expecting more output and am guessing I’ve missed something
> > > here.
> > > 
> > > Christopher Williamson
> > > 
> > > On 19 July 2016 at 17:38:35, Dan Williams (dcbw@xxxxxxxxxx(mailto
> > > :dcbw@xxxxxxxxxx)) wrote:
> > > 
> > > > 
> > > > On Tue, 2016-07-19 at 12:06 -0400, Christopher Williamson
> > > > wrote:
> > > > > 
> > > > > Hi everyone!
> > > > > 
> > > > > I’ve just got myself a Viliv N5 and am trying to get the
> > > > > integrated
> > > > > Wifi chipset working on it.
> > > > > 
> > > > > I am able to see networks around me but any attempts to
> > > > > connect them
> > > > > appear to time out and fail.
> > > > > 
> > > > > I have filed a linux kernel bug related to this issue:
> > > > > https://bugzilla.kernel.org/show_bug.cgi?id=135421goo
> > > > > 
> > > > > I figured here may be a good place to ask about it and
> > > > > hopefully to
> > > > > get to the bottom of why it happens and how I can help to fix
> > > > > it.
> > > > > 
> > > > > Happy to provide any information which may be helpful! :)
> > > > Can you reload the driver stack:
> > > > 
> > > > rmmod libertas_sdio
> > > > rmmod libertas
> > > > modprobe libertas libertas_debug=0x251e7ff
> > > > modprobe libertas_sdio
> > > > 
> > > > and then reproduce the issue? The debug info should dump to
> > > > 'dmesg'
> > > > and may tell us what's going on.
> > > > 
> > > > Dan
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