netdev - Re: ipv6 not bringing up due to qdisc_tx_is

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <56E992E0.1080708@stressinduktion.org>
Date:	Wed, 16 Mar 2016 18:07:44 +0100
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Nikolay Borisov <kernel@...p.com>,
	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org,
	SiteGround Operations <operations@...eground.com>
Subject: Re: ipv6 not bringing up due to qdisc_tx_is_noop failing

Hello,

On 16.03.2016 16:29, Nikolay Borisov wrote:
> I have stack traces which do show this sequence of events, so my
> questions now are:
>
> 1. What's the difference between netdev_queue->qdisc and
> netdev_queue->qdisc_sleeping. Git blaming indicates those member haves
> existed even before the git history was started.

qdisc_sleeping is the qdisc you configure before the device is brought 
up. It should transition during carrier up to the normal qdisc.

> 2. Shouldn't the netdev_queue->qdisc also be updated during
> attach_one_default_qdisc?

Yes, do you have carrier up on your card?

Is this a regression, did this work for you and stopped working with a 
specific kernel version?

Thanks and bye,
Hannes