linux-kernel - Re: WARNING: CPU: 1 PID: 2485 at drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1752 iwl_trans_pcie_grab_nic

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Message-ID: <1460836384.2998.3.camel@intel.com>
Date:	Sat, 16 Apr 2016 19:53:04 +0000
From:	"Grumbach, Emmanuel" <emmanuel.grumbach@...el.com>
To:	"bp@...en8.de" <bp@...en8.de>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linuxwifi <linuxwifi@...el.com>,
	"Dreyfuss, Haim" <haim.dreyfuss@...el.com>,
	"Coelho, Luciano" <luciano.coelho@...el.com>,
	"Berg, Johannes" <johannes.berg@...el.com>,
	"kvalo@...eaurora.org" <kvalo@...eaurora.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"Sharon, Sara" <sara.sharon@...el.com>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>
Subject: Re: WARNING: CPU: 1 PID: 2485 at
 drivers/net/wireless/intel/iwlwifi/pcie/trans.c:1752
 iwl_trans_pcie_grab_nic_access+0x110/0x120 [iwlwifi]

On Sat, 2016-04-16 at 17:43 +0200, Borislav Petkov wrote:
> On Fri, Apr 15, 2016 at 04:16:02AM +0000, Grumbach, Emmanuel wrote:
> > [1] 
> > https://git.kernel.org/cgit/linux/kernel/git/iwlwifi/backport-iwlwi
> > fi.git/
> 
> It is very strange to pull from this repo, git fetch is doing
> something
> for a while now without any forward progress.

This is not surprising at all. This tree is not a kernel tree, but
rather a backport tree. It doesn't contain anything besides the Wifi
stack and the backport code. It has no common commit with the Linux
kernel. I understand that you fetched this tree from a kernel tree but
that's not a good idea. Git will try to find a common ancestor but that
will fail... after a huge number of tentatives. You'd better clone it.

> In any case, 4.5 is bad too, testing 4.4 now.

Here you go.

> I 'm travelling currently
> so the whole bisection deal will take a whole but I'll get to it
> eventually.

I'll be glad to see something coming out of this, but I can't say I am
very optimistic.

> 
> Thanks for taking a look.
>