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 !








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