On 2016-08-09 00:05, Guillaume Nault wrote:
On Mon, Aug 08, 2016 at 02:25:00PM +0300, Denys Fedoryshchenko wrote:
On 2016-08-01 23:59, Guillaume Nault wrote:
> Do you still have the vmlinux file with debug symbols that generated
> this panic?
Sorry for delay, i didn't had same image on all servers and probably i
found
cause of panic, but still testing on several servers.
If i remove SFQ qdisc from ppp shapers, servers not rebooting anymore.
Thanks for the feedback. I wonder which interactions between SFQ and
PPP can lead to this problem. I'll take a look.
But still i need around 2 days to make sure that's the reason.
Okay, just let me know if you can confirm that removing SFQ really
solves the problem.
After long testing, i can confirm removing sfq from rules decreased
panic reboot greatly, tested on many different servers.
I will try today to do some stress tests, to apply on live system at
night sfq qdiscs, then remove them.
Then i will try also to disconnect all users with sfq qdiscs attached.
Not sure it will help to reproduce the bug, but worth to try.
Still i am hitting once per week some different conntrack bug, sand
thats why i was confused, i was getting clearly panics in conntrack and
then something else, i was not sure if it is different bugs, hardware
glitch or something else.
