latest netdev net-next kernel panic

latest netdev net-next kernel panic

[Paweł Staszewski]

I want to mention also here cause last trace for RIP was dst_dev_put

https://bugzilla.kernel.org/attachment.cgi?id=258259

Re: latest netdev net-next kernel panic

[Eric Dumazet]

On Thu, 2017-09-07 at 23:30 +0200, Paweł Staszewski wrote:
> I want to mention also here cause last trace for RIP was dst_dev_put
> 
> https://bugzilla.kernel.org/attachment.cgi?id=258259

Can you provide a bit more context ?

Thanks !

Re: latest netdev net-next kernel panic

[Paweł Staszewski]

Hi Eric


today upgraded some host from 4.13.0-rc7+ to latest net-next from git

and run some tests simulate clients traffic 40Gbit / 5Mpps mixed tcp + udp

There is also bgpd running that feeds FIB with full bgp feed - about 
700k prefixes (so routing tables is about 700k routes with about 300 
nexthops)


There is also simulated about 1000 ip neigh hosts (arp) with about 300 
ip interfaces assigned on vlans



With kernel 4.13.0-rc7+ (git from 05.09.2017) all tests are good 
(besides that there is panic after about 10 hours - every time same like 
in this link:

https://bugzilla.kernel.org/attachment.cgi?id=258257

But looks like acpi related or c/p states with new intel cpus... dono now.




W dniu 2017-09-07 o 23:39, Eric Dumazet pisze:
> On Thu, 2017-09-07 at 23:30 +0200, Paweł Staszewski wrote:
>> I want to mention also here cause last trace for RIP was dst_dev_put
>>
>> https://bugzilla.kernel.org/attachment.cgi?id=258259
> Can you provide a bit more context ?
>
> Thanks !
>
>
>

Re: latest netdev net-next kernel panic

[Paweł Staszewski]

Also this panic occured about 3 minutes after traffic rise to 40G

before host was working without trafic for about 30minutes - after 
traffic start to flow this bug start.

Now i have this host without traffic and it is working for almost 1 hour :)



W dniu 2017-09-07 o 23:47, Paweł Staszewski pisze:
> Hi Eric
>
>
> today upgraded some host from 4.13.0-rc7+ to latest net-next from git
>
> and run some tests simulate clients traffic 40Gbit / 5Mpps mixed tcp + 
> udp
>
> There is also bgpd running that feeds FIB with full bgp feed - about 
> 700k prefixes (so routing tables is about 700k routes with about 300 
> nexthops)
>
>
> There is also simulated about 1000 ip neigh hosts (arp) with about 300 
> ip interfaces assigned on vlans
>
>
>
> With kernel 4.13.0-rc7+ (git from 05.09.2017) all tests are good 
> (besides that there is panic after about 10 hours - every time same 
> like in this link:
>
> https://bugzilla.kernel.org/attachment.cgi?id=258257
>
> But looks like acpi related or c/p states with new intel cpus... dono 
> now.
>
>
>
>
> W dniu 2017-09-07 o 23:39, Eric Dumazet pisze:
>> On Thu, 2017-09-07 at 23:30 +0200, Paweł Staszewski wrote:
>>> I want to mention also here cause last trace for RIP was dst_dev_put
>>>
>>> https://bugzilla.kernel.org/attachment.cgi?id=258259
>> Can you provide a bit more context ?
>>
>> Thanks !
>>
>>
>>
>
>

Re: latest netdev net-next kernel panic

[Paweł Staszewski]

What is weird - changed in bios and enabled p-states and no panic from 
30 minutes

w
  00:38:07 up 33 min,  2 users,  load average: 0.10, 0.13, 0.17
USER     TTY        LOGIN@   IDLE   JCPU   PCPU WHAT

So the problem can be related to some cpu weird stuff with c/p states or 
it is random.



W dniu 2017-09-08 o 00:08, Paweł Staszewski pisze:
> Also this panic occured about 3 minutes after traffic rise to 40G
>
> before host was working without trafic for about 30minutes - after 
> traffic start to flow this bug start.
>
> Now i have this host without traffic and it is working for almost 1 
> hour :)
>
>
>
> W dniu 2017-09-07 o 23:47, Paweł Staszewski pisze:
>> Hi Eric
>>
>>
>> today upgraded some host from 4.13.0-rc7+ to latest net-next from git
>>
>> and run some tests simulate clients traffic 40Gbit / 5Mpps mixed tcp 
>> + udp
>>
>> There is also bgpd running that feeds FIB with full bgp feed - about 
>> 700k prefixes (so routing tables is about 700k routes with about 300 
>> nexthops)
>>
>>
>> There is also simulated about 1000 ip neigh hosts (arp) with about 
>> 300 ip interfaces assigned on vlans
>>
>>
>>
>> With kernel 4.13.0-rc7+ (git from 05.09.2017) all tests are good 
>> (besides that there is panic after about 10 hours - every time same 
>> like in this link:
>>
>> https://bugzilla.kernel.org/attachment.cgi?id=258257
>>
>> But looks like acpi related or c/p states with new intel cpus... dono 
>> now.
>>
>>
>>
>>
>> W dniu 2017-09-07 o 23:39, Eric Dumazet pisze:
>>> On Thu, 2017-09-07 at 23:30 +0200, Paweł Staszewski wrote:
>>>> I want to mention also here cause last trace for RIP was dst_dev_put
>>>>
>>>> https://bugzilla.kernel.org/attachment.cgi?id=258259
>>> Can you provide a bit more context ?
>>>
>>> Thanks !
>>>
>>>
>>>
>>
>>
>
>