Hi,
On Thu, Jan 22, 2015 at 4:14 PM, Gerlof Fokkema
<[email protected]> wrote:
> Hello Emmanuel,
>
> First of all, thanks for your previous reply.
> I'm glad the issue is known and being looked at.
>
> Recently I tried linux kernel 3.18.2 on Arch linux and had the same
> issues I previously mentioned.
> Is there any bug report on this I can follow or any other way to be updated?
>
This should help:
https://git.kernel.org/cgit/linux/kernel/git/kvalo/wireless-drivers.git/commit/?id=4e6c48e0984e28d064ee8fbc292aee7b7920c507
>
> On Tue, Dec 30, 2014 at 3:30 PM, Emmanuel Grumbach <[email protected]> wrote:
>> Hi,
>>
>> Sorry for the delay. This one got lost in my inbox.
>>
>> On Sat, Dec 27, 2014 at 4:03 PM, Gerlof Fokkema
>> <[email protected]> wrote:
>>> Hi all,
>>>
>>> Since a few weeks I own a laptop with an Intel Wireless 7260 wireless adapter.
>>> I first noticed that my connection started dropping when I transferred
>>> large files over WiFi.
>>> Later on I noticed this problem when the signal strength was low as well.
>>>
>>> I seem to be experiencing the bug described here:
>>> https://bugzilla.kernel.org/show_bug.cgi?id=56581
>>
>> This bug relates to dvm - which is de-facto another driver. We made
>> this work around because
>> of firmware issues. These issues aren't supposed to happen on devices
>> supported by iwlmvm.
>> Obviously, they do. You are not the only one to report this issue.
>> I will discuss it with our firmware team.
>>
>>>
>>> However, if I read the changelogs correctly, this should've been fixed
>>> in 3.17.3.
>>>
>>> Atttached you'll find dmesg.log with the error.
>>> Excerpt:
>>> [ 152.941067] iwlwifi 0000:03:00.0: fail to flush all tx fifo queues Q 2
>>> [ 152.941072] iwlwifi 0000:03:00.0: Current SW read_ptr 209 write_ptr 234
>>> [ 152.941097] iwl data: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00
>>> 00 00 00 00 ................
>>> [ 152.941111] iwlwifi 0000:03:00.0: FH TRBs(0) = 0x80003000
>>> [ 152.941125] iwlwifi 0000:03:00.0: FH TRBs(1) = 0xc01100f2
>>> [ 152.941139] iwlwifi 0000:03:00.0: FH TRBs(2) = 0x00000000
>>> When I try reconnecting to WiFi I get dozens more of those errors.
>>>
>>> Can someone point me in the right direction for this?
>>> Is there already a bugreport for this on kernel 3.17.6?
>>> Should you need more information, I'm happy to supply.
>>>
>>> For now I've reverted to 3.16.4, since it seems to work better...
>>
>> Probably because 3.16 uses an older firmware (-9.ucode).
>> This is also an interesting input - although I heard complaints about
>> this very same issue on -9.ucode as well.
>>
>>>
>>> Kind regards,
>>> Gerlof Fokkema