Bug#800721:

[wayne wayne <choeffer@mailbox.org>]

on initial driver setup I get:

[    1.564855] iwlwifi 0000:03:00.0: firmware: direct-loading firmware
iwlwifi-7260-9.ucode
[    1.565049] iwlwifi 0000:03:00.0: loaded firmware version 23.214.9.0 op_mode
iwlmvm
...
[    1.577597] iwlwifi 0000:03:00.0: Detected Intel(R) Dual Band Wireless AC
7260, REV=0x144
[    1.578136] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled
[    1.579186] iwlwifi 0000:03:00.0: L1 Enabled - LTR Enabled

Sine I have updated to latest
https://packages.debian.org/jessie-backports/firmware-iwlwifi package from
backports the error hasn't occured anymore. 

You could also try to update to this package from backports. You can also check
if this package has the latest drivers included for your wifi card. Here
https://wireless.wiki.kernel.org/en/users/Drivers/iwlwifi is a list which .ucode
is needed for which wifi card on each kernel.

Are you running 4.1 kernel from jessie backports
https://packages.debian.org/de/jessie-backports/linux-image-amd64? Because what
is written in the list on kernel.org, if v13 is expected, it is for kernel
version 4.1+. In jessie-backports latest wifi driver for you card is v10, as
seen in your log, which is loaded as the most recent one. This could be the
reason why you are getting this error. 

So you could try to download
https://wireless.wiki.kernel.org/_media/en/users/drivers/iwlwifi-7265-ucode-25.30.13.0.tgz
and copy the two .ucode files to "/lib/firmware" were also the other
iwlwifi-****-*.ucode files are located and then try reboot and check dmesg if
error still exists (because this will bring you latest intel driver for your
kernel). Or you go back to Jessie's normal kernel 3.16 and use the wifi driver
package from jessie-backports. So two options, going back to old kernel and
package from backports or manually "install" driver for your actual kernel.

This is just what I could figure out, I am not an expert, so no warranty! :)

Please let us know if this helped you.

> Joni Orponen <joni.orponen@gmail.com> hat am 9. Oktober 2015 um 19:03
> geschrieben:
> 
> 
> I'm having quite similar symptoms on an Intel NUCi3RYH.
> 
> Are you also getting
> 
> iwlwifi 0000:02:00.0: Microcode SW error detected.  Restarting 0x2000000.
> 
> in your dmesg output when this happens?
> 
> And are you also getting something like
> 
> [    2.329024] iwlwifi 0000:02:00.0: Unsupported splx structure
> [    2.329152] iwlwifi 0000:02:00.0: firmware: failed to load
> iwlwifi-7265D-13.ucode (-2)
> [    2.329158] iwlwifi 0000:02:00.0: Direct firmware load for
> iwlwifi-7265D-13.ucode failed with error -2
> [    2.329175] iwlwifi 0000:02:00.0: firmware: failed to load
> iwlwifi-7265D-12.ucode (-2)
> [    2.329179] iwlwifi 0000:02:00.0: Direct firmware load for
> iwlwifi-7265D-12.ucode failed with error -2
> [    2.329192] iwlwifi 0000:02:00.0: firmware: failed to load
> iwlwifi-7265D-11.ucode (-2)
> [    2.329196] iwlwifi 0000:02:00.0: Direct firmware load for
> iwlwifi-7265D-11.ucode failed with error -2
> [    2.335448] iwlwifi 0000:02:00.0: firmware: direct-loading firmware
> iwlwifi-7265D-10.ucode
> [    2.335461] iwlwifi 0000:02:00.0: Firmware has old API version, expected
> v12 through v13, got v10.
> [    2.335467] iwlwifi 0000:02:00.0: New firmware can be obtained from
> http://www.intellinuxwireless.org/.
> 
> on the initial driver startup?
> 
> -- Joni Orponen