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

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Date:   Mon, 29 Jan 2018 16:18:07 +0100
From:   "Roland Franke" <fli4l@...nke-prem.de>
To:     "Eric Dumazet" <eric.dumazet@...il.com>, <netdev@...r.kernel.org>
Subject: Re: iproute2 4.14.1 tc class add come to kernel-panic

Hello,

> To: Roland Franke ; netdev@...r.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