Hello,
On Mon, Jan 29, 2018 at 9:03 AM, Cong Wang <xiyou.wangc...@gmail.com>
wrote:
On Mon, Jan 29, 2018 at 8:00 AM, Stephen Hemminger
<step...@networkplumber.org> wrote:
On Mon, 29 Jan 2018 16:18:07 +0100
"Roland Franke" <fl...@franke-prem.de> wrote:
Hello,
> To: Roland Franke ; netdev@vger.kernel.org
> Subject: Re: BUG: iproute2 4.14.1 tc class add come to kernel-panic
>>
>> tc qdisc add dev eth0 root handle 20: htb default 4 r2q 1
>> tc class add dev eth0 parent 20: classid 20:7 htb rate 10000kbit
>> tc qdisc add dev eth0 parent 20:7 sfq perturb 10
>> tc class add dev eth0 parent 20:7 classid 20:1 htb rate 200kbit ceil
>> 10000kbit prio 0
>>
>> I become an Kernel-panic with the following output:
>> kern.err kernel: BUG: scheduling while atomic: tc/1036/0x00000200
>
> Would you have a stack trace to share with us ?
As i will be an absolute newby here, i will not know how to
get the stack trace out.
When i will get some information how to get this, i can try to
give you this information.
But by my last tests i made the first 3 commands on an console
and had no error. Only by typing the last line i will get the error and
here i get actally only the "kern.err kernel: BUG: ....." message.
Roland
It generates this with lockdep (on 4.15)
[ 151.355076] HTB: quantum of class 200007 is big. Consider r2q change.
We hold qdisc tree spinlock but call rcu_barrier() in
mini_qdisc_pair_swap()...
Well, not min_qdisc things, but it should be resolved by:
commit efbf78973978b0d25af59bc26c8013a942af6e64
Author: Cong Wang <xiyou.wangc...@gmail.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
