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From: Petko Manolov <petkan@nucleusys.com>
To: Emmanuel Grumbach <egrumbach@gmail.com>
Cc: "Grumbach, Emmanuel" <emmanuel.grumbach@intel.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
	"ilw@linux.intel.com" <ilw@linux.intel.com>,
	"Berg, Johannes" <johannes.berg@intel.com>
Subject: Re: iwlwifi crash with 3.13
Date: Thu, 23 Jan 2014 22:19:22 +0200	[thread overview]
Message-ID: <20140123201922.GB4064@localhost> (raw)
In-Reply-To: <52E16978.3040602@gmail.com>

On 14-01-23 21:11:52, Emmanuel Grumbach wrote:
> Ok -  I put the pieces together:
> 
> > iwlwifi 0000:01:00.0: loaded firmware version 22.15.8.0 op_mode iwlmvm
> > iwlwifi 0000:01:00.0: Detected Intel(R) Wireless N 7260, REV=0x144
> 
> This means that your NIC is 2.4GHz only. Dual band NICs print something
> else.

This isn't correct.  My NIC happily connects to my crappy Linksys WRT610Nv1 at 5GHz.  After a while the router's (5GHz) radio dies, but before 
that i am able to easily do more than 100Mbps.

iwconfig output:

wlan0     IEEE 802.11abgn  ESSID:"xxxxxxx"
          Mode:Managed  Frequency:5.745 GHz  Access Point: xx:xx:xx:xx:xx:xx
          Bit Rate=135 Mb/s   Tx-Power=16 dBm
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:on
          Link Quality=64/70  Signal level=-46 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:9  Invalid misc:3   Missed beacon:0
 
> Now here come the catch. You seem to have an "old" NIC in a way that the
> NVM (EEPROM like) is old. In that NVM, there was a bug that advertised
> the A band channels but disabled the A band in SKU cap.

iwlwifi-7260-7 ucode works fine for both bands.  iwlwifi-7260-8.ucode seems unable to connect at 5GHz.

> Can you please try the patch attached?

Do you still think it is a good idea to apply and test the patch?


		Petko

  reply	other threads:[~2014-01-23 20:19 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-23  9:16 iwlwifi crash with 3.13 Petko Manolov
2014-01-23  9:22 ` Grumbach, Emmanuel
2014-01-23 12:31   ` Petko Manolov
2014-01-23 12:34     ` Grumbach, Emmanuel
2014-01-23 12:45     ` Grumbach, Emmanuel
2014-01-23 19:11       ` Emmanuel Grumbach
2014-01-23 20:19         ` Petko Manolov [this message]
2014-01-23 20:00       ` Petko Manolov
2014-01-23 20:07         ` Emmanuel Grumbach
2014-01-23 20:21           ` Petko Manolov
2014-02-07 21:40             ` Petko Manolov
2014-02-08 18:10               ` Emmanuel Grumbach
2014-02-09 13:26                 ` Petko Manolov
2014-02-09 13:31                   ` Grumbach, Emmanuel
2014-02-09 13:49                     ` Petko Manolov
2014-02-07 11:08           ` Niklas Claesson
2014-02-08 18:11             ` Emmanuel Grumbach

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