Hi, I am also getting this EXACT problem on my Toshiba P55-A5312 laptop
which uses an Intel 7260 (rev. 73) wireless network controller.  Once
the abort occurs, wifi is very unstable, crashing every 5 mins.

Looking at dmesg, the failure appears to originate as:

[  398.780636] ieee80211 phy0: Hardware restart was requested
[  398.781020] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
[  398.781158] iwlwifi 0000:02:00.0: L1 Disabled; Enabling L0S
[  398.789161] iwlwifi 0000:02:00.0: Microcode SW error detected.  Restarting 
0x2000000.

Then, after some register values  (I can post these if you want), I get:

[  398.789618] iwlwifi 0000:02:00.0: Firmware error during reconfiguration! 
Abort.
[  398.789622] iwlwifi 0000:02:00.0: FW error in SYNC CMD MAC_CONTEXT_CMD

Finally, I get the same warning in util.c:

[  398.789949] WARNING: CPU: 2 PID: 1474 at
/home/apw/COD/linux/net/mac80211/util.c:1509
ieee80211_reconfig+0x15d9/0x1860 [mac80211]()

I have installed kernel version 3.11.8, and  I am using Firmware
iwlwifi-7260-7-ucode (ie. version 7) for the 7260 controller.

Note that if I restart the iwlwifi module using rmmod iwlwifi, then
modprobe iwlwifi, then I get a bit more stability... but it still
crashes on occasions.

Please ask if I can provide anything else to you!

Thank you!

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https://bugs.launchpad.net/bugs/1247681

Title:
  IEEE 802.11 driver crash

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