On Wed, Jun 1, 2016 at 7:19 AM, Coelho, Luciano
[off-list ref] wrote:

On Wed, 2016-06-01 at 08:54 -0400, Bob Copeland wrote:

quoted

+ Luca, Emmanuel

Thanks, Bob!

quoted

On Tue, May 31, 2016 at 10:06:57PM -0600, Reinoud Koornstra wrote:

quoted

Today I compiled 4.6+ and pulled sources today
iwlwifi isn't super smooth.

I assume you mean wireless-testing, based on 4.7-rc1 (as this email
is
in reply to my announcement of same).

Yes, we need to know exactly what kernel you're using so we know what
we're debugging.

Yesterday this is what I did to obtain the latest source:

git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel_current

This is the latest commit in that tree:

commit 367d3fd50566a313946fa9c5b2116a81bf3807e4
Merge: 5eca831 cf0d44d
Author: Linus Torvalds [off-list ref]
Date:   Tue May 31 09:43:24 2016 -0700

   Merge branch 'for-linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

   Pull s390 fixes from Martin Schwidefsky:
    "Three bugs fixes and an update for the default configuration"

   * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
     s390: fix info leak in do_sigsegv
     s390/config: update default configuration
     s390/bpf: fix recache skb->data/hlen for skb_vlan_push/pop
     s390/bpf: reduce maximum program size to 64 KB

quoted

quoted

[  112.345457] wlp4s0: authenticate with 00:30:44:1d:cf:2b
[  112.349002] wlp4s0: send auth to 00:30:44:1d:cf:2b (try 1/3)
[  112.349647] wlp4s0: authenticated
[  112.352456] wlp4s0: associate with 00:30:44:1d:cf:2b (try 1/3)
[  112.353764] wlp4s0: RX AssocResp from 00:30:44:1d:cf:2b
(capab=0x11
status=0 aid=3)
[  112.355035] wlp4s0: associated
[  112.355393] IPv6: ADDRCONF(NETDEV_CHANGE): wlp4s0: link becomes
ready
[  118.616327] wlp4s0: deauthenticated from 00:30:44:1d:cf:2b
(Reason:
15=4WAY_HANDSHAKE_TIMEOUT)
[  128.673812] wlp4s0: authenticate with 00:30:44:1d:cf:2b
[  128.676997] wlp4s0: send auth to 00:30:44:1d:cf:2b (try 1/3)
[  128.677648] wlp4s0: authenticated
[  128.678691] wlp4s0: associate with 00:30:44:1d:cf:2b (try 1/3)
[  128.679807] wlp4s0: RX AssocResp from 00:30:44:1d:cf:2b
(capab=0x11
status=0 aid=3)
[  128.681198] wlp4s0: associated

I never experienced the 4 way handshake 802.11i timeout in my home
setup.
With other setups plenty of times, especially with mediatek
drivers. :)
If you wish I can sniff and see which side is at fault.

I have not noticed any problems on my laptop with iwldvm on a 6205,
with
latest wireless-testing.  But maybe intel devs can weigh in.

I'm not going to put all my weight in lest I break things even more. :P

I can't really see much from the log extract you posted.  Can you get
some logs (especially trace-cmd and a sniffer capture) and report a bug
in bugzilla? We have some instructions on how to do it here:

https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging

Ok, will do so, thanks,

Reinoud.

Thanks for reporting!

--
Cheers,
Luca.