From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]:34928 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750712AbdCRIeC (ORCPT ); Sat, 18 Mar 2017 04:34:02 -0400 Date: Sat, 18 Mar 2017 09:28:24 +0100 From: Stanislaw Gruszka To: korgman Cc: linux-wireless@vger.kernel.org Subject: Re: iwl3945 bug report (occasionally crashing after suspend) Message-ID: <20170318082823.GA7356@redhat.com> (sfid-20170318_094026_807137_C1C4869D) References: <7ae0bf4f-6ea2-1a4c-2e6d-e793cf800c4a@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <7ae0bf4f-6ea2-1a4c-2e6d-e793cf800c4a@gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, Mar 16, 2017 at 04:26:10PM +0200, korgman wrote: > Hello there, > > I have the same problem as reported here. > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1627828 > > and here > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1629603 This could be caused by power save, which is disable by default in the driver but some programs/distribution seems to enable it without user knowlage. First check: $ iw dev wlan0 get power_save and if PS is enabled, disable by: $ iw dev wlan0 set power_save off and check if problem still happen. > If I understood correctly (form 2nd link) the latest good kernel was 4.4.4 after 4.4.6 we have the problem. (see message #5) > > I quote: > "Not a full bisection yet but I have narrowed it down: > > I looked at all kernel versions that had changes committed to iwlwifi and tested between them. > > I now have determined that I do not have this issue in the kernel version 4.4.4. > > I do have the issue in 4.4.6 and that is the next kernel version that has changes to iwlwifi so I guess that is the first bad version." This does not make sense as 3945 device is handled by iwl3495 (iwlegacy) driver, not by iwlwifi. Stanislaw