netdev - Re: iproute2 4.14.1 tc class add come to kernel-panic

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]

Date:   Thu, 1 Feb 2018 22:42:45 -0800
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Roland Franke <fli4l@...nke-prem.de>
Cc:     Stephen Hemminger <stephen@...workplumber.org>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: iproute2 4.14.1 tc class add come to kernel-panic

On Tue, Jan 30, 2018 at 11:46 PM, Roland Franke <fli4l@...nke-prem.de> wrote:
> Hello,
>
>> On Tue, Jan 30, 2018 at 9:46 AM, Roland Franke <fli4l@...nke-prem.de>
>> wrote:
>>>
>>> Hello,
>>>
>>>> Well, not min_qdisc things, but it should be resolved by:
>>>
>>>
>>>> commit efbf78973978b0d25af59bc26c8013a942af6e64
>>>> Author: Cong Wang <xiyou.wangcong@...il.com>
>>>> Date:   Mon Dec 4 10:48:18 2017 -0800
>>>
>>>
>>>>     net_sched: get rid of rcu_barrier() in tcf_block_put_ext()
>>>
>>>
>>>
>>> Against what kernel-version was this be made?
>>> patch from https://patchwork.ozlabs.org/patch/844372/
>>> will not fit against kernel 4.14.15
>>>
>
>> It is merged during 4.15 window, it was to address a performance
>> issue, I don't realize it fixes any bug until you report this.
>
>
>> If you need, we can ask DaveM to queue it for stable, but it may
>> need some other commit too.
>
>
> It is not for me. It is a general question, if tc schould work with
> the requested function general not with the kernel-line 4.14 (As
> i was thinking that this should be come to a very long support.
> (As i was suggest to read in an german page for computers; but
> it may be a mistake from my side)
> Or if the 4.14 series come to a "short end" and then it take no
> matter when the function not work.
>

Sure, I will send a list of commits to backport to DaveM.

Thanks.